Details of the Researcher

PHOTO

Noritaka Yusa
Section
Graduate School of Engineering
Job title
Professor
Degree

  • 博士（工学）（東京大学）

  • 修士（工学）（東京大学）

Research History 6

  • 2020/10 - Present
    Tohoku University　Graduate School of Engineering Department of Quantum Science and Energy Engineering　Professor

  • 2009/04 - 2020/09
    東北大学大学院工学研究科　准教授

  • 2006/10 - 2009/03
    東京大学大学院工学研究科

  • 2001/05 - 2009/03
    株式会社IIU

  • 2005/04 - 2006/03
    慶應義塾大学理工学部　特別研究助手

  • 2001/04 -
    日本AEM学会　研究員

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Education 2

  • The University of Tokyo　Graduate School, Division of Engineering　システム量子工学

    - 2000/03/31

  • The University of Tokyo　Faculty of Engineering　システム量子工学科

    - 1998/03/31

Committee Memberships 16

  • 日本非破壊検査協会 渦電流・漏洩磁束専門別委員会　委員

    2011/05 - Present

  • 日本非破壊検査協会 渦電流・漏洩磁束専門別委員会　委員

    2011/05 - Present

  • 日本原子力学会　PLM分科会委員

    2010/08 - Present

  • 日本原子力学会　PLM分科会委員

    2010/08 - Present

  • 非破壊検査協会渦流探傷研究委員会　幹事

    2010/04 - 2012/03

  • 非破壊検査協会渦流探傷研究委員会　幹事

    2010/04 - 2012/03

  • 財団法人発電設備技術検査協会「高ニッケル合金溶接部の渦電流探傷試験法及び炉内外超音波探傷試験法に関する確性試験委員会」　委員

    2010/04 - 2011/03

  • 財団法人発電設備技術検査協会「高ニッケル合金溶接部の渦電流探傷試験法及び炉内外超音波探傷試験法に関する確性試験委員会」　委員

    2010/04 - 2011/03

  • 日本保全学会　論文委員

    2009/04 - 2011/03

  • 日本保全学会　論文委員

    2009/04 - 2011/03

  • 財団法人原子力安全技術センター　新検査制度に係る新技術等に関する動向調査委員

    2009/06 -

  • 財団法人原子力安全技術センター　新検査制度に係る新技術等に関する動向調査委員

    2009/06 -

  • 非破壊検査協会　渦流探傷研究委員会委員

    2008/07 -

  • 非破壊検査協会　渦流探傷研究委員会委員

    2008/07 -

  • 社団法人非破壊検査協会　表面探傷分科会幹事

    2007/08 -

  • 社団法人非破壊検査協会　表面探傷分科会幹事

    2007/08 -

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Professional Memberships 6

  • 日本エネルギー環境教育学会

  • American Society for Nondestructive Testing

  • 原子力学会

  • 非破壊検査協会

  • 日本AEM学会

  • 日本保全学会

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Research Interests 3

  • Energy and environmental education

  • Statistical analysis of experimental data to discuss the reliability of structures

  • Nondestructive evaluation techniques using DC-GHz electromagnetic fields

Research Areas 3

  • Nanotechnology/Materials / Energy chemistry /

  • Energy / Nuclear engineering /

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Measurement engineering /

Awards 5

  1. The most excellent paper award

    2014/07　International Conference on Mechanical and Electrical Technology

  2. 日本保全学会論文賞

    2012/05　日本保全学会

  3. 銅賞

    2009/08　日本保全学会　日本保全学会第6回学術講演会

  4. 奨励賞

    2006/05　社団法人非破壊検査協会

  5. 新進賞

    2005/01　社団法人非破壊検査協会

Papers 159

  1. Effect of residual stress on the electromagnetic non-destructive testing signals from components made of F82H steel Peer-reviewed

    Haru Amano, Noritaka Yusa, Takashi Nozawa

    Fusion Engineering and Design　217　115177-115177　2025/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.fusengdes.2025.115177 　

    ISSN： 0920-3796

  2. Development of a Non-digital Educational Game for Understanding the Characteristics of Power Sources and the Scale of Power Demand and Generation Peer-reviewed

    YUSA Noritaka, NAKAYAMA Shinya

    2025/07

  3. Probabilistic detection capability evaluation of eddy current testing to detect cracks on the divertor monoblock surface Peer-reviewed

    Fanwei Yu, Noritaka Yusa, Masayuki Tokitani

    Fusion Engineering and Design　215　115002-115002　2025/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.fusengdes.2025.115002 　

    ISSN： 0920-3796

  4. Evaluation of local wall thinning severity in a metal pipe using guided microwaves Peer-reviewed

    Yijun Guo, Haitao Huang, Noritaka Yusa, Hidetoshi Hashizume

    Nondestructive Testing and Evaluation　1-22　2025/03/20

    Publisher: Informa UK Limited

    DOI： 10.1080/10589759.2025.2482036 　

    ISSN： 1058-9759

    eISSN： 1477-2671

  5. Pipe failure prediction model based on periodic pipe wall thickness measurement using electromagnetic acoustic resonance Peer-reviewed

    Noritaka Yusa, Sho Takeda, Tetsuya Uchimoto, Masahiko Endo, Yasuhiro Saito

    International Journal of Applied Electromagnetics and Mechanics　2025

    DOI： 10.1177/13835416251324396 　

  6. Experimental investigation of low-frequency and pulsed eddy current testing in thickness measurement Peer-reviewed

    Jiuhao Ge, Fei Xu, Noritaka Yusa

    Nondestructive Testing and Evaluation　1-19　2024/12/11

    Publisher: Informa UK Limited

    DOI： 10.1080/10589759.2024.2440145 　

    ISSN： 1058-9759

    eISSN： 1477-2671

  7. Numerical prediction of the heat transfer properties of Flinabe molten salt as a coolant in a nuclear system Peer-reviewed

    Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume, Yoshiki Ishii, Norikazu Ohtori

    Annals of Nuclear Energy　206　110631-110631　2024/10

    Publisher: Elsevier BV

    DOI： 10.1016/j.anucene.2024.110631 　

    ISSN： 0306-4549

  8. The applicability of high-frequency ultrasonic testing for the inspection of the bonded interface between a divertor's mono-block and screw pipe Peer-reviewed

    Mohammadjavad Faridafshin, Noritaka Yusa, Weixi Chen

    Fusion Engineering and Design　205　114535-114535　2024/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.fusengdes.2024.114535 　

    ISSN： 0920-3796

  9. Signal-distribution-based crack detection for divertor monoblock inspection using eddy current testing Peer-reviewed

    Fanwei Yu, Takuma Tomizawa, Noritaka Yusa, Masayuki Tokitani

    Fusion Engineering and Design　203　114404-114404　2024/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.fusengdes.2024.114404 　

    ISSN： 0920-3796

  10. Comparison between the results of three surveys in Japan about the attitudes towards energy and power sources conducted in 2020, 2022, and 2023 Peer-reviewed

    Noritaka Yusa

    Maintenology　23　95-102　2024

  11. Bayesian data fusion of eddy current testing for flaw characterization with uncertainty evaluation Peer-reviewed

    Takuma Tomizawa, Noritaka Yusa

    NDT & E International　141　102996-102996　2024/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2023.102996 　

    ISSN： 0963-8695

  12. The applicability of remote field eddy current testing to outer flaws on cooling tubes in the blanket of a fusion DEMO reactor Peer-reviewed

    Mizuki Kako, Takuma Tomizawa, Jiuhao Ge, Xiaoyong Ruan, Takashi Nozawa, Noritaka Yusa

    Fusion Engineering and Design　194　113709-113709　2023/09

    Publisher: Elsevier BV

    DOI： 10.1016/j.fusengdes.2023.113709 　

    ISSN： 0920-3796

  13. Surface Profile Reconstruction of Complex Cracks Using the Signals of Rotating Eddy Current Testing Through the Eddy Current Imaging Method Peer-reviewed

    Jiuhao Ge, Baowang Hu, Chenkai Yang, Fanwei Yu, Noritaka Yusa

    IEEE Transactions on Industrial Electronics　70　(9)　9632-9641　2023/09

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    DOI： 10.1109/tie.2022.3206746 　

    ISSN： 0278-0046

    eISSN： 1557-9948

  14. The Effect of the Grain Size of Divertor’s Cooling Pipe on the Capability of High-Frequency Ultrasonic Tests to Evaluate the Quality of the Bond between Divertor’s Cooling Pipe and Armor Peer-reviewed

    Mohammadjavad FARIDAFSHIN, Noritaka YUSA, Ryouji SUZUKI, Takashi FURUKAWA, Masayuki TOKITANI, Suguru MASUZAKI

    Plasma and Fusion Research　18　2405068-2405068　2023/08/10

    Publisher: Japan Society of Plasma Science and Nuclear Fusion Research

    DOI： 10.1585/pfr.18.2405068 　

    eISSN： 1880-6821

  15. Board Game Design to Understand the National Power Mix Peer-reviewed

    Noritaka Yusa, Ryoju Hamada

    Education Sciences　13　(8)　793-793　2023/08/03

    Publisher: MDPI AG

    DOI： 10.3390/educsci13080793 　

    eISSN： 2227-7102

  16. Design of a simple side-incident TE11 mode microwave probe for nondestructive pipe inspection Peer-reviewed

    Yijun Guo, Ryo Yoshikawa, Noritaka Yusa, Hidetoshi Hashizume

    Measurement Science and Technology　34　(8)　085104-085104　2023/04/27

    Publisher: IOP Publishing

    DOI： 10.1088/1361-6501/accca0 　

    ISSN： 0957-0233

    eISSN： 1361-6501

  17. Receiver operating characteristic analysis for evaluating a proper experimental condition of eddy current tests under a low signal-to-noise ratio Peer-reviewed

    Fanwei Yu, Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    International Journal of Applied Electromagnetics and Mechanics　71　S179-S189　2023/04/14

    Publisher: IOS Press

    DOI： 10.3233/jae-220145 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    This study proposed a method to evaluate proper experimental conditions of eddy current tests under a low signal-to-noise ratio. This method was applied to quantify the detection reliability of the eddy current test to detect corrosion pits on the surface of austenitic stainless-steel weld cladding from the perspectives of probability of detection and probability of false alarm. The fluctuations of flaw signal and noise were described using truncated bivariate normal distributions of a two-dimensional vector composed of the real and imaginary components of a signal. The probabilities of detection and false alarms were formalized as cumulative distributions of the estimated distributions of the maximum flaw signal and the noise exceeding a decision threshold. The receiver operating characteristic curves were created by coupling the probabilities of detection and false alarms at various thresholds. The area under the curve was used to quantify the detection reliability, simultaneously considering the probabilities of detection and false alarms. The results obtained in this study support the applicability of this method in quantitatively evaluating the detection reliability of a non-destructive inspection under a low signal-to-noise ratio.

  18. A probability of detection model for a sensor-based monitoring method against local wall thinning Peer-reviewed

    Haicheng Song, Noritaka Yusa

    International Journal of Applied Electromagnetics and Mechanics　71　S29-S37　2023/04/14

    Publisher: IOS Press

    DOI： 10.3233/jae-220100 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    In this study, a multivariable probability of detection (POD) model is developed to quantify the detection capability of a low frequency electromagnetic (LFEM) testing method with permanently installed sensors to monitor the thinning of pipe walls. Numerical simulations are utilized to predict the signal response by modeling LFEM testing against local wall thinning with different profiles. By probabilistically calibrating the simulated signal response with a limited number of experimental samples, signal response distributions due to various flaw profiles are inferred. Subsequently, a model is developed using Monte Carlo simulation to determine the distribution of the signal response affected by sensor placement and to calculate the POD. The resultant POD contours reflect the effect of multiple flaw parameters and sensor placement on the detection capability of the LFEM testing method.

  19. Evaluation of the applicability of microwave nondestructive testing to crack detection on a pipe inner surface Peer-reviewed

    Yijun Guo, Noritaka Yusa, Hidetoshi Hashizume

    International Journal of Applied Electromagnetics and Mechanics　71　S107-S115　2023/04/14

    Publisher: IOS Press

    DOI： 10.3233/jae-220127 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    This study explores the applicability of microwave nondestructive testing to detect a metal pipe’s inner crack. Three-dimensional finite element simulations were conducted to study the inspectability of cracks using microwaves in different modes and the dependency of the reflection characteristics of microwaves on crack size. The simulation results showed that microwaves in the TM01 and TE01 modes can detect circumferential and axial cracks, respectively. The positive relationship between crack size and intensity corresponding to the reflected microwaves was obtained in simulations and then verified by experiments. In both simulations and experiments, the axial crack length showed a small influence on the results, especially for shallow crack detection. In the experiments, circumferential and axial cracks with a width of 0.3 mm were detected using microwaves. The experimental results revealed that signal amplitudes decreased when a slit penetrated a pipe wall, probably due to a microwave leakage.

  20. Applicability of simulation-assisted probability of detection analysis considering multiple signal features to eddy current testing of weld Peer-reviewed

    Takuma Tomizawa, Yijun Guo, Noritaka Yusa

    International Journal of Applied Electromagnetics and Mechanics　71　S75-S83　2023/04/14

    Publisher: IOS Press

    DOI： 10.3233/jae-220123 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    In this study, a simulation-assisted probability of detection (POD) analysis that considers multiple flaw parameters and signal features is presented, including an evaluation of its applicability to eddy current testing for weld inspection. In the proposed method, both the real and imaginary parts of eddy current signals were considered, unlike conventional methods that only consider signal amplitude. Type 304 stainless steel plates were joined by butt welding, and slits were fabricated on the weld path. The eddy current inspection was conducted using a uniform eddy current probe. Numerical simulations were also performed using the finite element method, with the model imitating the experimental situation. The POD contours were calculated using the proposed method, and they exhibited a reasonable tendency. In addition, the 95% lower confidence intervals of the proposed and conventional PODs were compared and were almost equal with respect to the decision threshold, indicating the applicability of the proposed method.

  21. High frequency ultrasonic inspection of the bonded interface between a divertor monoblock and a cooling pipe Peer-reviewed

    Noritaka Yusa, Mohammadjavad Faridafshin, Ryouji Suzuki, Takashi Furukawa, Masayuki Tokitani

    Fusion Engineering and Design　187　113367-113367　2023/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.fusengdes.2022.113367 　

    ISSN： 0920-3796

  22. Development of signal processing method to measure wall thickness of corrosion specimens by electromagnetic acoustic resonance method Peer-reviewed

    Yuichi HIROSE, Daiki IWATA, Sho TAKEDA, Noritaka YUSA, Tetsuya UCHIMOTO

    Transactions of the JSME (in Japanese)　89　(918)　22-00283　2023

    Publisher: Japan Society of Mechanical Engineers

    DOI： 10.1299/transjsme.22-00283 　

    eISSN： 2187-9761

  23. Probe Design for the Eddy Current Inspection of Cooling Tubes in the Blanket of a Fusion DEMO Reactor Peer-reviewed

    Mizuki KAKO, Takuma TOMIZAWA, Jiuhao GE, Takashi NOZAWA, Noritaka YUSA

    Plasma and Fusion Research　17　2405102-2405102　2022/11/24

    Publisher: Japan Society of Plasma Science and Nuclear Fusion Research

    DOI： 10.1585/pfr.17.2405102 　

    eISSN： 1880-6821

  24. Integration of multiple wall thinning parameters into the probability of detection analysis for long-range pipe inspection using microwaves Peer-reviewed

    Yijun Guo, Takuma Tomizawa, Fanwei Yu, Noritaka Yusa, Hidetoshi Hashizume

    NDT & E International　102763-102763　2022/10

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2022.102763 　

    ISSN： 0963-8695

  25. Whether “Rich in Frequency” Means “Rich in Information” in Pulsed Eddy Current Testing to Evaluate Plate Thickness: Numerical Investigation Peer-reviewed

    Noritaka Yusa, Jiuhao Ge, Mengbao Fan

    MATERIALS TRANSACTIONS　63　(4)　529-537　2022/04/01

    Publisher: Japan Institute of Metals

    DOI： 10.2320/matertrans.mt-i2021001 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  26. Application of High-Frequency Ultrasonic Test to the Non-Destructive Inspection of W-Cu Bonded Interface Peer-reviewed

    Noritaka YUSA, Ryouji SUZUKI, Takashi FURUKAWA, Masayuki TOKITANI, Suguru MASUZAKI

    Plasma and Fusion Research　17　2405013-2405013　2022/03/30

    Publisher: Japan Society of Plasma Science and Nuclear Fusion Research

    DOI： 10.1585/pfr.17.2405013 　

    eISSN： 1880-6821

  27. Quantitative evaluation of pipe wall thinning defect sizes using microwave NDT Peer-reviewed

    Yijun Guo, Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    Nondestructive Testing and Evaluation　1-17　2022/03/09

    Publisher: Informa UK Limited

    DOI： 10.1080/10589759.2022.2051505 　

    ISSN： 1058-9759

    eISSN： 1477-2671

  28. Transformation of the rotating eddy current testing signal at the desired eddy current orientation Peer-reviewed

    Jiuhao Ge, Chenkai Yang, Fanwei Yu, Noritaka Yusa

    NDT & E International　125　102551-102551　2022/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2021.102551 　

    ISSN： 0963-8695

  29. Multivariate probability of detection (POD) analysis considering the defect location for long-range, non-destructive pipe inspection using electromagnetic guided wave testing Peer-reviewed

    Guanren Chen, Yijun Guo, Takuya Katagiri, Haicheng Song, Takuma Tomizawa, Noritaka Yusa, Hidetoshi Hashizume

    NDT & E International　124　102539-102539　2021/12

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2021.102539 　

    ISSN： 0963-8695

  30. Probabilistic evaluation of EMAR signals to evaluate pipe wall thickness and its application to pipe wall thinning management Peer-reviewed

    Noritaka Yusa, Haicheng Song, Daiki Iwata, Tetsuya Uchimoto, Toshiyuki Takagi, Makoto Moroi

    NDT & E International　122　102475-102475　2021/09

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2021.102475 　

    ISSN： 0963-8695

  31. Development of a board game for studying energy mix Peer-reviewed

    Noritaka Yusa, Ryoju Hamada

    Journal of Energy and Environmental Education　15　(2)　21-28　2021/07

    Publisher:

    ISSN： 1882-0662

  32. Frequency component mixing of pulsed or multi-frequency eddy current testing for nonferromagnetic plate thickness measurement using a multi-gene genetic programming algorithm Peer-reviewed

    Jiuhao Ge, Noritaka Yusa, Mengbao Fan

    NDT & E International　120　102423-102423　2021/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2021.102423 　

    ISSN： 0963-8695

  33. Evaluation of detection capability of eddy current probes with stochastic decision threshold for inspecting pits on austenitic stainless steel welding Peer-reviewed

    Jing Wang, Haicheng Song, Takuma Tomizawa, Noritaka Yusa, Yuanjin Ling

    International Journal of Applied Electromagnetics and Mechanics　1-15　2021/05/17

    Publisher: IOS Press

    DOI： 10.3233/jae-201602 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    It is still a big challenge to calculate the probability of defect detection for inspecting pits on austenitic stainless steel welding using traditional POD models. Because we determine the decision threshold, the POD curve has a lot of changes as the decision threshold changes, there is no clear reason to insist which threshold is reasonable. This study proposes a new probability of detection (POD) model to quantitatively assess the detection capability of eddy current probes for inspecting pits on austenitic stainless steel welding. The experimental results show that the proposed model is more reasonable than traditional ones. The novel POD model was employed to analyze three eddy current probes, uniform, TR, plus-point probes on austenitic stainless steel welding. The results reveal that the uniform eddy current probe has the best detection capability for inspecting pits on among the three probes.

  34. Inverse analysis of low frequency electromagnetic signals for sizing local wall thinning using a multivariate probabilistic model Peer-reviewed

    Haicheng Song, Noritaka Yusa

    NDT & E International　119　102417-102417　2021/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.ndteint.2021.102417 　

    ISSN： 0963-8695

  35. Demonstration of detection of the multiple pipe wall thinning defects using microwaves Peer-reviewed

    Takuya Katagiri, Guanren Chen, Noritaka Yusa, Hidetoshi Hashizume

    Measurement　175　109074-109074　2021/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.measurement.2021.109074 　

    ISSN： 0263-2241

  36. Experimental investigation on bend-region crack detection using TE11 mode microwaves Peer-reviewed

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    Nondestructive Testing and Evaluation　1-10　2021/03/14

    Publisher: Informa UK Limited

    DOI： 10.1080/10589759.2021.1900847 　

    ISSN： 1058-9759

    eISSN： 1477-2671

  37. A Detection Sensitivity Analysis Model for Structural Health Monitoring to Inspect Wall Thinning considering Random Sensor Location Peer-reviewed

    Haicheng Song, Noritaka Yusa

    Research in Nondestructive Evaluation　32　(2)　74-87　2021/03/04

    Publisher: Informa UK Limited

    DOI： 10.1080/09349847.2021.1883167 　

    ISSN： 0934-9847

    eISSN： 1432-2110

  38. An Internet-based survey on the attitudes towards energy sources Peer-reviewed

    Noritaka Yusa

    Journal of Energy and Environmental Education　15　(1)　61-68　2021/02

  39. Inspection of pitting corrosions on weld overlay cladding using uniform and rotating eddy current testing Peer-reviewed

    Jiuhao Ge, Fanwei Yu, Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    IEEE Transactions on Instrumentation and Measurement　1-1　2021

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    DOI： 10.1109/tim.2021.3108521 　

    ISSN： 0018-9456

    eISSN： 1557-9662

  40. Probability of detection model based on hit/miss data considering multiple signal features and multiple flaw parameters from eddy current testing suffering low S/N ratio, Nondestructive Testing Diagnosis Peer-reviewed

    Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    Nondestructive Testing Diagnosis　2021

  41. Experimental verification of improved probability of detection model considering the effect of sensor’s location on low frequency electromagnetic monitoring signals Peer-reviewed

    Haicheng Song, Noritaka Yusa

    International Journal of Applied Electromagnetics and Mechanics　64　(1-4)　191-199　2020/12/10

    Publisher: IOS Press

    DOI： 10.3233/jae-209322 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    Structural health monitoring (SHM) is a promising method for maintaining the integrity of structures. A reasonable approach is necessary to quantify its detection uncertainty by taking into account the effect of random sensor locations on inspection signals. Recent studies of the authors proposed a model that adopts Monte Carlo simulation to numerically obtain the distribution of inspection signals influenced by random sensor locations. This model can evaluate the effect not only of multiple defect dimensions but also of the placement of sensors on the detection uncertainty. However, its effectiveness has only been confirmed using pseudo-experimental signals generated by artificial pollution. This study aims to examine the effectiveness of the proposed model in quantifying the detection uncertainty of SHM methods using the experimental signals of low frequency electromagnetic monitoring for inspecting wall thinning in pipes. The results confirm the capability of the proposed model to correctly characterize the distribution of inspection signals affected by random sensor locations and to determine the reasonable probability of detection.

  42. Experimental verification of a TE01 mode converter to locate a crack in a metal pipe Peer-reviewed

    Takuya Katagiri, Guanren Chen, Noritaka Yusa, Hidetoshi Hashizume

    International Journal of Applied Electromagnetics and Mechanics　64　(1-4)　465-472　2020/12/10

    Publisher: IOS Press

    DOI： 10.3233/jae-209353 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    In this study, a TE01 mode converter was developed to locate an axial crack on the inner surface of a metal pipe. Three-dimensional finite element simulation was conducted to evaluate the effect of inserted coaxial cables on the transmission characteristic of the mode converter. The result showed that the energy of TE mode microwaves leaned to transmit to one side when the cables penetrated with inclination. To demonstrate the effectiveness of the mode converter, experimental verification was conducted. The mode converter was fabricated based on the simulation result. Microwaves were emitted through the pipe wall of the converter to propagate on both sides (‘right side’ and ‘left side’) of a pipe with an artificial slit. Compared with the signals from each side, the reflection from the slit on the right side was more significant than that on the left side. This result is consistent with the numerical simulation result.

  43. Probabilistic evaluation of detection capability of eddy current testing to inspect pitting on a stainless steel clad using multiple signal features Peer-reviewed

    Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    International Journal of Applied Electromagnetics and Mechanics　64　(1-4)　47-55　2020/12/10

    Publisher: IOS Press

    DOI： 10.3233/jae-209306 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    This study proposes a probability of detection (POD) model to quantitatively evaluate the capability of eddy current testing to detect flaws on the inner surface of pressure vessels cladded by stainless steel and in the presence of high noise level. Welded plate samples with drill holes were prepared to simulate corrosion that typically appears on the inner surface of large-scale pressure vessels. The signals generated by the drill holes and the noise caused by the weld were examined using eddy current testing. A hit/miss-based POD model with multiple flaw parameters and multiple signal features was proposed to analyze the measured signals. It is shown that the proposed model is able to more reasonably characterize the detectability of eddy current signals compared to conventional models that consider a single signal feature.

  44. In-pipe crack detection for multiple diameters using TE11 mode microwaves Peer-reviewed

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    International Journal of Applied Electromagnetics and Mechanics　64　(1-4)　39-46　2020/12/10

    Publisher: IOS Press

    DOI： 10.3233/jae-209305 　

    ISSN： 1383-5416

    eISSN： 1875-8800

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    This study evaluated the effect of pipe diameter on the applicability of a technique using TE11 mode microwaves for in-pipe crack detection. Three TE11 mode converters of different inner diameters were designed based on theoretical calculations and verified via numerical simulations. The working bandwidths of these mode converters were 7.0, 4.0, and 1.9 GHz. Experimental verification was carried out using brass pipes with the corresponding three inner diameters, and with pipe lengths up to 21–25.5 m. An axial and a circumferential slit were introduced to simulate cracks and deployed at multiple positions along the pipes under test. The results showed that both axial and circumferential slits could be detected and located for an inner pipe diameter up to 39 mm and at a distance of 15 m–24 m.

  45. Design of a dual-port, side-incident microwave probe for detection of in-pipe damage Peer-reviewed

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    Measurement Science and Technology　31　(12)　125001-125001　2020/12/01

    Publisher: IOP Publishing

    DOI： 10.1088/1361-6501/ab9acc 　

    ISSN： 0957-0233

    eISSN： 1361-6501

  46. Quantitative evaluation of the delamination length in mechanical lap joints of high-temperature superconducting tapes using Lamb waves Peer-reviewed

    Bo Feng, Weixi Chen, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume, Artur L. Ribeiro, Helena G. Ramos

    Measurement　156　107606-107606　2020/05

    Publisher: Elsevier BV

    DOI： 10.1016/j.measurement.2020.107606 　

    ISSN： 0263-2241

  47. Investigation for Contact Interface of Mechanical Lap Joint Fabricated with High-Temperature Superconducting Conductor Using X-Ray Microtomography Peer-reviewed

    Weixi CHEN, Satoshi ITO, Noritaka YUSA, Hidetoshi HASHIZUME

    Plasma and Fusion Research　15　(0)　2405014-2405014　2020/03/27

    Publisher: Japan Society of Plasma Science and Nuclear Fusion Research

    DOI： 10.1585/pfr.15.2405014 　

    eISSN： 1880-6821

  48. Probabilistic evaluation the area of coverage of a probe used for eddy current non-destructive inspections Peer-reviewed

    Noritaka Yusa, Takuma Tomizawa, Haicheng Song

    International Journal of Applied Electromagnetics and Mechanics　64　11-18　2020/03

  49. Investigation of the Effect of a Bend on Pipe Inspection Using Microwave NDT Peer-reviewed

    Guanren Chen, Takuya Katagiri, Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    NDT&E International　110　102208　2020

    DOI： 10.1016/j.ndteint.2019.102208 　

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    This study investigated the effect of a bend on microwave NDT (non-destructive testing) applied for rapid pipe inspections. The factors affecting the mode conversion of microwaves due to a bend were deducted theoretically and verified through numerical simulation. Both theoretical and numerical results revealed that the mode conversion at a bend was actually determined by the frequency normalized by the cut-off frequency of an arbitrary mode (f/fc), the ratio of the curvature radius to the inner diameter of the pipe (r/D) and the bend angle (α). Subsequent experimental evaluations were performed using four groups of pipes with different inner diameters and five different bends. The effect of a bend was quantitatively evaluated by comparing the reflection signals from pipe wall thinning in a straight pipe with those in a bent pipe. The results showed that the presence of a bend led to a decrease in the reflection signal behind the bend, and the extent of decrease also depended on r/D and α of the bend. Furthermore, the length or the depth of the pipe wall thinning did not noticeably affect the decrease in reflection signal, when the bend’s dimensions were certain.

  50. Probabilistic analysis of electromagnetic acoustic resonance signals for the detection of pipe wall thinning Peer-reviewed

    Noritaka Yusa, Haicheng Song, Daiki Iwata, Tetsuya Uchimoto, Toshiyuki Takagi, Makoto Moroi

    Nondestructive Testing and Evaluation　36　(1)　1-16　2020

    Publisher: Informa UK Limited

    DOI： 10.1080/10589759.2019.1679141 　

    ISSN： 1058-9759

    eISSN： 1477-2671

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    This study proposes a probability of detection (POD) model for the probabilistic analysis of the detectability of electromagnetic acoustic resonance (EMAR) method for the detection and evaluation of pipe wall thinning. Forty-one carbon steel plate samples with an artificially corroded groove were prepared to simulate pipe wall thinning caused by flow-assisted corrosion. Experiments were performed to gather EMAR signals from the samples, and subsequently the depths of the grooves were evaluated based on the fundamental frequency of the measured signals. The results of the experiments showed that the error in evaluating the depth of a groove tended to increase with the depth. The results also confirmed that the surface roughness of the groove would contribute to the error, and the thickness of a plate without corrosion can be quite accurately evaluated. Analysing the measured EMAR signals using the proposed POD model, which takes these characteristics into consideration, and a conventional one confirmed that the proposed model can more reasonably evaluate the probability of detection against small wall thinning, as well as the false-positive rate.

  51. Investigation of the correlation between the electrical contact resistance and the contact area of mechanical lap joint fabricated with high-temperature superconducting tapes using X-ray microtomography Peer-reviewed

    Weixi Chen, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume

    148　111284　2019/08

    DOI： 10.1016/j.fusengdes.2019.111284 　

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    A mechanical lap joint fabricated with high-temperature superconducting (HTS) tapes is proposed for the application to joint-winding in HTS magnets for fusion reactors. The applicability of the joint has been validated, however, it could not be guaranteed because the joint resistance is unpredictable before the entire conductor is cooled and energized. Identifying the factors that affect the joint resistance is necessary to develop a method to predict this parameter at room temperature. In this report, we evaluated the correlation between the electrical resistance of contact interfaces (contact resistance) and the contact area observed using X-ray computer tomography scan (observed contact area), and discussed appropriate techniques for this prediction. A total of 40 mechanical lap joint samples were prepared. The observed contact areas were segmented from cross-sectional images of contact interfaces using a graph cut image segmentation, while the contact resistances were calculated from measured joint resistances. The correlation indicated that the prediction of contact resistance is more precise when base on the observed contact area compared to the conventional method using the nominal contact area. However, some of dispersive contact resistivity still remained due to inhomogeneous distribution of fine-structure on contact interface.

  52. Detection of cracks with arbitrary orientations in a metal pipe using linearly-polarized circular TE11 mode microwaves Peer-reviewed

    Guanren Chen, Takuya Katagiri, Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    NDT&E International　107　102125　2019/07

  53. Detection of cracks with arbitrary orientations in a metal pipe using linearly-polarized circular TE11 mode microwaves Peer-reviewed

    Guanren Chen, Takuya Katagiri, Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    NDT&E International　107　102125　2019/06

    DOI： 10.1016/j.ndteint.2019.102125 　

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    This study proposed a long-range non-destructive pipe inspection approach using linearly-polarized circular TE11 mode microwaves, enabling rapid detection of both axial and circumferential cracks on the inner surface of a metallic pipe. The applicability of the TE11 mode microwaves for crack detection was discussed in the light of the currents induced on the inner surface of a pipe due to the propagation of the TE11 mode microwaves. A dual-bend structured mode converter was designed to propagate linearly-polarized TE11 mode microwaves inside a pipe with a certain inner diameter, based on the theoretical and numerical analysis of mode conversion due to a bend. A 3.5 GHz working bandwidth of the mode converter was achieved with a conversion efficiency of the TE11 mode of over 90%. Experimental verification was conducted using stainless-steel pipes with an inner diameter of 23 mm and a total length of 7 m. An axial and a circumferential slit were introduced to simulate cracks. The experimental results confirmed reflections from both the axial and circumferential slits, indicating that the TE11 mode microwaves are applicable to crack detection. The results also confirmed the correlation between TE11 mode polarization and its detection sensitivity toward slits with different orientations along the circumferential direction. Furthermore, the axial and circumferential slits situated at different longitudinal and circumferential locations in the pipe were successfully detected by orthogonally deploying the mode converter to change the polarization of the TE11 mode by 90°.

  54. Proposal of a TEM to TE01 mode convertor for a microwave nondestructive inspection of axial flaws appearing on the inner surface of a pipe with an arbitrary diameter Peer-reviewed

    Takuya Katagiri, Kota Sasaki, Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    International Journal of Applied Electromagnetics and Mechanics　59　(4)　1527-1534　2019/03

    DOI： 10.3233/JAE-171144 　

  55. Long-range inspection of a pipe with a bend using microwaves Peer-reviewed

    Shoya Uoshita, Kota Sasaki, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    International Journal of Applied Electromagnetics and Mechanics　59　(4)　1519-1526　2019/03

    DOI： 10.3233/JAE-171001 　

  56. Development of electromagnetic nondestructive testing for inspecting mechanical lap joint of higherature superconducting tapes

    Weixi Chen, Noritaka Yusa, Satoshi Ito, Hidetoshi Hashizume

    Proceedings of 2017 IEEE Far East NDT New Technology and Application Forum, FENDT 2017　202-206　2018/12/20

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI： 10.1109/FENDT.2017.8584577 　

  57. Low Frequency Electromagnetic Testing for Evaluating Wall Thinning in Carbon Steel Pipe Peer-reviewed

    Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    Materials Transactions　59　(8)　1348-1353　2018/07

    DOI： 10.2320/matertrans.M2018057 　

  58. Experimental verification of long-range microwave pipe inspection using straight pipes with lengths of 19–26.5 m Peer-reviewed

    Kota Sasaki, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    NDT and E International　96　47-57　2018/06/01

    Publisher: Elsevier Ltd

    DOI： 10.1016/j.ndteint.2018.03.001 　

    ISSN： 0963-8695

  59. Application of low-frequency eddy current testing to the inspection of a double-walled tank in a reprocessing plant Peer-reviewed

    Naoki Tajima, Noritaka Yusa, Hidetoshi Hashizume

    Nondestructive Testing and Evaluation　33　(2)　189-197　2018/04/03

    Publisher: Taylor and Francis Ltd.

    DOI： 10.1080/10589759.2017.1376057 　

    ISSN： 1477-2671 1058-9759

  60. Questionnaire survey of the attitude of Laotian students aiming at the discussion on the factors affecting the public attitudes toward energy Peer-reviewed

    Noritaka Yusa, Haicheng Song

    Maintenology　17　(1)　93-99　2018/04

  61. Construction of minor actinides reduction scenario in Japan utilizing fusion reactors Peer-reviewed

    Yuki Furudate, Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume

    Progress in Nuclear Energy　103　28-32　2018/03/01

    Publisher: Elsevier Ltd

    DOI： 10.1016/j.pnucene.2017.11.003 　

    ISSN： 0149-1970

  62. Development of long-range inspection using TE mode microwaves for detecting axial cracks Peer-reviewed

    Takuya Katagiri, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    Transactions of the JSME　84　(859)　17-00375　2018/03

    DOI： 10.1299/transjsme.17-00375 　

  63. Experimental Evaluation of Novel Hybrid Microwave/Ultrasonic Technique to Locate and Characterize Pipe Wall Thinning Peer-reviewed

    Wissam M. Alobaidi, Clifford E. Kintner, Entidhar A. Alkuam, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume, Eric Sandgren

    Journal of Pressure Vessel Technology, Transactions of the ASME　140　(1)　011501　2018/02/01

    Publisher: American Society of Mechanical Engineers (ASME)

    DOI： 10.1115/1.4038517 　

    ISSN： 1528-8978 0094-9930

  64. Probability of detection analyses of eddy current data for the detection of corrosion Peer-reviewed

    Noritaka Yusa, Takuma Tomizawa, Haicheng Song, Hidetoshi Hashizume

    Nondestructive Testing and Diagnostics　4　3-7　2018

    DOI： 10.26357/BNiD.2018.031 　

  65. Assessment of local conductivity distribution in stress corrosion crack region using direct current potential drop method Peer-reviewed

    Wenlu Cai, Shejuan Xie, Cherdpong Jomdecha, Xiaojuan Wang, Cuixiang Pei, Yong Li, Zhenmao Chen, Noritaka Yusa

    CORROSION SCIENCE　123　197-208　2017/07

    DOI： 10.1016/j.corsci.2017.01.019 　

    ISSN： 0010-938X

    eISSN： 1879-0496

  66. Long-range inspection of a pipe using a microwave emitted by a probe attached to the pipe wall Peer-reviewed

    Kota Sasaki, Noritaka Yusa, Takuya Katagiri, Hidetoshi Hashizume

    Journal of Japan Society of Applied Electromagnetics and Mechanics　25　(2)　266-272　2017/07

    Publisher: The Japan Society of Applied Electromagnetics and Mechanics

    DOI： 10.14243/jsaem.25.266 　

    ISSN： 0919-4452

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    <p>This study proposes long-range nondestructive inspection of the inner surface of a pipe without open end using microwave emitted by a probe attached to the pipe wall. Three-dimensional finite element simulations were conducted to evaluate how to propagate microwave effectively inside a pipe having an inner diameter of 19 mm. The simulations considered a coaxial cable penetrating the pipe wall to emit microwave inside the pipe. Experimental verifications were then carried out using a brass pipe with a total length of 4.5 m and a probe fabricated on the basis of the results of the numerical simulations. The experiment confirmed clear reflections due to artificial wall thinning 1 m away from the probe situated approximately at the center of the pipe. The experiment also revealed that directivity of the microwave depended on the frequency, which agrees with the results of the numerical simulations.</p>

  67. Survey on the Knowledge of Laotian High School Students on Nuclear Energy Peer-reviewed

    Noritaka Yusa

    Maintenology　16　(2)　266-272　2017/07

  68. Numerical investigation of the ability of eddy current testing to size surface breaking cracks Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume

    NONDESTRUCTIVE TESTING AND EVALUATION　32　(1)　50-58　2017

    DOI： 10.1080/10589759.2015.1135918 　

    ISSN： 1058-9759

    eISSN： 1477-2671

  69. Probability of Detection Model for the Non-Destructive Inspection of Steam Generator Tubes of PWRs Peer-reviewed

    Noritaka Yusa

    Journal of Physics: Conference Series　860　012032　2017

  70. Thermal Design Investigation for a Flinabe Blanket System Peer-reviewed

    Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume, Yoshiki Ishii, Norikazu Ohtori

    FUSION SCIENCE AND TECHNOLOGY　72　(3)　382-388　2017

    DOI： 10.1080/15361055.2017.1330623 　

    ISSN： 1536-1055

    eISSN： 1943-7641

  71. Demonstration of the Applicability of Nondestructive Microwave Testing to the Long-Range Inspection of Inner-Surface Cracks in Tubes Peer-reviewed

    Kota Sasaki, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    MATERIALS TRANSACTIONS　58　(4)　692-696　2017

    DOI： 10.2320/matertrans.M2017008 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  72. A survey of attitudes toward energy and electricity of undergraduate students studying in the Faculty of Engineering, National University of Laos Peer-reviewed

    Noritaka Yusa

    Journal of Energy and Environmental Education　11　(1)　59-64　2016/12

  73. Demonstration of probability of detection taking consideration of both the length and the depth of a flaw explicitly Peer-reviewed

    Noritaka Yusa, Weixi Chen, Hidetoshi Hashizume

    NDT & E INTERNATIONAL　81　1-8　2016/07

    DOI： 10.1016/j.ndteint.2016.03.001 　

    ISSN： 0963-8695

    eISSN： 1879-1174

  74. Reducing Joint Resistance by Heat Treatment During Fabrication of a Mechanical Joint of High-Temperature Superconducting Conductors Peer-reviewed

    Tatsuki Nishio, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY　26　(4)　4800505　2016/06

    DOI： 10.1109/TASC.2016.2521891 　

    ISSN： 1051-8223

    eISSN： 1558-2515

  75. Fabrication of imitative cracks by 3D printing for electromagnetic nondestructive testing and evaluations Peer-reviewed

    Noritaka Yusa, Weixi Chen, Jing Wang, Hidetoshi Hashizume

    Case Studies in Nondestructive Testing and Evaluation　5　9-14　2016/05/01

    Publisher: Elsevier Ltd

    DOI： 10.1016/j.csndt.2016.03.004 　

    ISSN： 2214-6571

  76. Evaluation of probability of detection (POD) studies with multiple explanatory variables Peer-reviewed

    Noritaka Yusa, Jeremy S. Knopp

    JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY　53　(4)　574-579　2016/04

    DOI： 10.1080/00223131.2015.1064332 　

    ISSN： 0022-3131

    eISSN： 1881-1248

  77. Mechanical and Electrical Characteristics of a Bridge-Type Mechanical Lap Joint of HTS STARS Conductors Peer-reviewed

    Satoshi Ito, Noritaka Yusa, Nagato Yanagi, Hitoshi Tamura, Akio Sagara, Hidetoshi Hashizume

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY　26　(2)　4201510-4201510　2016/03

    DOI： 10.1109/TASC.2016.2517197 　

    ISSN： 1051-8223

    eISSN： 1558-2515

  78. Demonstration of low-frequency vibration tests to evaluate bolt loosening Peer-reviewed

    Noritaka Yusa, Sakuo Sawada

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　52　(1-2)　89-94　2016

    DOI： 10.3233/JAE-162070 　

    ISSN： 1383-5416

    eISSN： 1875-8800

  79. EVALUATION OF PHYSICAL PROPERTIES OF THE MOLTEN SALT MIXTURES FLINABE FOR A FUSION BLANKET SYSTEM USING MOLECULAR DYNAMICS SIMULATION Peer-reviewed

    Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume, Yoshiki Ishii, Norikazu Ohtori

    FUSION SCIENCE AND TECHNOLOGY　68　(3)　669-673　2015/10

    DOI： 10.13182/FST14-975 　

    ISSN： 1536-1055

    eISSN： 1943-7641

  80. Optimized microwave excitation probe for general application in NDT of wall thinning in metal pipes of arbitrary diameter Peer-reviewed

    Kota Sasaki, Linsheng Liu, Noritaka Yusa, Hidetoshi Hashizume

    NDT & E INTERNATIONAL　70　53-59　2015/03

    DOI： 10.1016/j.ndteint.2014.12.004 　

    ISSN： 0963-8695

    eISSN： 1879-1174

  81. Evaluating the Ill-Posedness of inverse problem to size flaws from eddy current NDT signals obtained with an absolute type probe

    Noritaka Yusa, Hiroki Shishido, Hidetoshi Hashizume

    International Conference on Mechanical and Electrical Technology, Bangkok, Thailand　2014/07/17

    DOI： 10.4028/www.scientific.net/AMM.619.337 　

  82. Study of a methodology of identifying important research problems by the PIRT process

    Takayuki Aoki, Toshiyuki Takagi, Ichiro Komura, Takashi Furukawa, Noritaka Yusa, Ryoichi Urayama

    Journal of Nuclear Science and Technology　51　(6)　832-844　2014

    Publisher: Atomic Energy Society of Japan

    DOI： 10.1080/00223131.2014.898596 　

    ISSN： 0022-3131

  83. PROPOSAL OF A NOVEL BLANKET SYSTEM USING LiF-BeF2-LiI FOR A FUSION REACTOR Peer-reviewed

    Hiroki Shishido, Youngmin Han, Kentaro Matsui, Noritaka Yusa, Hidetoshi Hashizume

    PROCEEDINGS OF THE 21ST INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING - 2013, VOL 5　2014

  84. An arrayed uniform eddy current eprobe design for crack monitoring and sizing of surface breaking cracks with the aid of a computational inversion technique Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume, Ryoichi Urayama, Tetsuya Uchimoto, Toshiyuki Takagi, Kunihiko Sato

    NDT & E INTERNATIONAL　61　29-34　2014/01

    DOI： 10.1016/j.ndteint.2013.09.004 　

    ISSN： 0963-8695

    eISSN： 1879-1174

  85. Evaluation of the electromagnetic characteristics of type 316L stainless steel welds from the viewpoint of eddy current inspections Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume, Tetsuya Uchimoto, Toshiyuki Takagi, Kunihiro Sato

    JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY　51　(1)　127-132　2014/01

    DOI： 10.1080/00223131.2013.851043 　

    ISSN： 0022-3131

    eISSN： 1881-1248

  86. Development of a method to fabricate a simulated flaw with a complicated boundary profile for non-destructive testing and evaluations Peer-reviewed

    Noritaka Yusa, Jing Wang, Hidetoshi Hashizume

    Journal of The Japanese Society for Non-Destructive Inspection　63　(3)　148-152　2014

    Publisher: The Japanese Society for Non-Destructive Inspection

    DOI： 10.11396/jjsndi.63.148 　

    ISSN： 0367-5866

    More details Close

    This study demonstrates that an artificial flaw that has an arbitrary boundary profile and the response to non-destructive testing similar to a natural crack can be fabricated by bonding surfaces with artificial grooves using diffusion bonding. Artificial flaws with a small openings and widely spread boundary profiles inside can be realized by bonding Type 316L stainless steel blocks with artificial grooves. The artificial flaw is designed so that its surfaces have a 20% physical contact. The conditions for bonding are based on the results of preliminary experiments. Validations are carried out using two electromagnetic non-destructive testing methods: direct current potential drop and eddy current tests, whose results are well reproduced by finite element simulations. Subsequent destructive testing confirms that the actual profile of the artificial flaw agrees well with the designed one.

  87. Development of an Eddy Current Non-Destructive Testing Method Applicable to the Evaluation of the Depth of a Surface Breaking Crack Appearing in a Ferromagnetic Material Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　100　(10)　1339-1346　2014

    DOI： 10.2355/tetsutohagane.100.1339 　

    ISSN： 0021-1575

    eISSN： 1883-2954

  88. Inspection and modeling of stress corrosion crack by eddy current testing

    Jing Wang, Noritaka Yusa, Hong-Liang Pan, Hidetoshi Hashizume

    Huadong Ligong Daxue Xuebao/Journal of East China University of Science and Technology　39　(5)　625-628　2013/10

    ISSN： 1006-3080

  89. Discussion on modeling of thermal fatigue cracks in numerical simulation based on eddy current signals Peer-reviewed

    Jing Wang, Noritaka Yusa, Hongliang Pan, Mika Kemppainen, Iikka Virkkunen, Hidetoshi Hashizume

    NDT & E INTERNATIONAL　55　96-101　2013/04

    DOI： 10.1016/j.ndteint.2013.01.012 　

    ISSN： 0963-8695

    eISSN： 1879-1174

  90. Enhancement of microwave nondestructive testing method for the inspection of pipes by optimizing the microwave probe profile Peer-reviewed

    Kota Sasaki, Noritaka Yusa, Takashi Wakai, Hidetoshi Hashizume

    Maintenology　12　(1)　81-86　2013/04

    Publisher:

    ISSN： 1348-7795

  91. Diversity and integration of rotating machine health monitoring methods

    Shigeru Kanemoto, Norihiro Yokotsuka, Noritaka Yusa, Masahiko Kawabata

    Chemical Engineering Transactions　33　169-174　2013

    Publisher: Italian Association of Chemical Engineering - AIDIC

    DOI： 10.3303/CET1333029 　

    ISSN： 2283-9216

  92. Study of a methodology of identifying important research problems by the PIRT process Peer-reviewed

    Takayuki Aoki, Toshiyuki Takagi, Ichiro Komura, Takashi Furukawa, Noritaka Yusa, Ryoichi Urayama

    Transactions of the Atomic Energy Society of Japan　12　(3)　231-241　2013

    DOI： 10.3327/taesj.J12.044 　

    ISSN： 1347-2879 2186-2931

  93. Evaluation of Sensitivity of Remote Field Eddy Current Testing and Low-Frequency Eddy Current Testing for Inspecting Grooves of Metal Plate Peer-reviewed

    Jing Wang, Noritaka Yusa, Hongliang Pan, Toshiyuki Takagi, Hidetoshi Hashizume

    MATERIALS TRANSACTIONS　54　(1)　90-95　2013

    DOI： 10.2320/matertrans.M2012323 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  94. Study of a methodology of identifying important research problems by the PIRT process Peer-reviewed

    Takayuki Aoki, Toshiyuki Takagi, Ichiro Komura, Takashi Furukawa, Noritaka Yusa, Ryoichi Urayama

    Transactions of the Atomic Energy Society of Japan　12　(3)　231-241　2013

    DOI： 10.3327/taesj.J12.044 　

    ISSN： 1347-2879 2186-2931

  95. 渦電流探傷試験における熱疲労割れの数値モデリング Peer-reviewed

    遊佐訓孝, 橋爪秀利, Iikka Virkkunen, Mika Kemppainen

    保全学　3　(11)　73-78　2012/10

    Publisher:

    ISSN： 1348-7795

  96. 渦電流探傷試験における熱疲労割れの数値モデリング Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume, Iikka Virkkunen, Mika Kemppainen

    保全学　11　(3)　186-198　2012/10

  97. Design and development of a new micro-beam treatment planning system: Effectiveness of algorithms of optimization and dose calculations and potential of micro-beam treatment Peer-reviewed

    Hidenobu Tachibana, Hiroyuki Kojima, Noritaka Yusa, Satoshi Miyajima, Akihisa Tsuda, Takashi Yamashita

    Radiological Physics and Technology　5　(2)　186-198　2012/07

    DOI： 10.1007/s12194-012-0153-6 　

    ISSN： 1865-0333 1865-0341

  98. An accurately controllable imitative stress corrosion cracking for electromagnetic nondestructive testing and evaluations Peer-reviewed

    Noritaka Yusa, Tetsuya Uchimoto, Toshiyuki Takagi, Hidetoshi Hashizume

    NUCLEAR ENGINEERING AND DESIGN　245　1-7　2012/04

    DOI： 10.1016/j.nucengdes.2012.01.022 　

    ISSN： 0029-5493

  99. Numerical Analysis of Microwave NDT Applied to Piping Inspection Peer-reviewed

    Yasutomo Sakai, Noritaka Yusa, Satoshi Ito, Hidetoshi Hashizume

    MATERIALS TRANSACTIONS　53　(4)　627-630　2012/04

    DOI： 10.2320/matertrans.I-M2012805 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  100. Nondestructive evaluation of wall thinning inside a pipe using the reflection of microwaves with the aid of signal processing Peer-reviewed

    Yasutomo Sakai, Noritaka Yusa, Hidetoshi Hashizume

    NONDESTRUCTIVE TESTING AND EVALUATION　27　(2)　171-184　2012

    DOI： 10.1080/10589759.2011.633608 　

    ISSN： 1058-9759

  101. Fabrication of imitative stress corrosion cracking specimen using lithography and solid state bonding Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　39　(1-4)　291-296　2012

    DOI： 10.3233/JAE-2012-1473 　

    ISSN： 1383-5416

  102. Four-terminal measurement of the distribution of electrical resistance across stress corrosion cracking Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume

    NDT & E INTERNATIONAL　44　(7)　544-546　2011/11

    DOI： 10.1016/j.ndteint.2011.06.004 　

    ISSN： 0963-8695

  103. FEASIBILITY STUDY OF FLIBE BLANKET WITH Cs Peer-reviewed

    Hidetoshi Hashizume, Noritaka Yusa, Kentaro Matsui

    FUSION SCIENCE AND TECHNOLOGY　60　(2)　523-527　2011/08

    ISSN： 1536-1055

  104. 固相接合を用いた電磁非破壊検査のための模擬応力腐食割れ試験体製作技術 Peer-reviewed

    Noritaka Yusa, Tetsuya Uchimoto, Toshiyuki Takagi, Hidetoshi Hashizume

    Maintenology　10　(1)　64-69　2011/04

    Publisher:

    ISSN： 1348-7795

  105. Electromagnetic modeling of stress corrosion cracks in Inconel welds Peer-reviewed

    Haoyu Huang, Noritaka Yusa, Kenzo Miya, Hidetoshi Hashizume, Takehiko Sera, Shinro Hirano

    E-Journal of Advanced Maintenance　2　166-180　2011/02/25

  106. An eddy current probe suitable to gain information about the depth of near-side flaws much deeper than the depth of penetration Peer-reviewed

    Noritaka Yusa, Yasutomo Sakai, Hidetoshi Hashizume

    NDT & E INTERNATIONAL　44　(1)　121-130　2011/01

    DOI： 10.1016/j.ndteint.2010.10.003 　

    ISSN： 0963-8695

  107. Size, Concentration and Incubation Time Dependence of Gold Nanoparticle Uptake into Pancreas Cancer Cells and its Future Application to X-ray Drug Delivery System Peer-reviewed

    Jade Dungao Trono, Kazue Mizuno, Noritaka Yusa, Takehisa Matsukawa, Kazuhito Yokoyama, Mitsuru Uesaka

    JOURNAL OF RADIATION RESEARCH　52　(1)　103-109　2011/01

    DOI： 10.1269/jrr.10068 　

    ISSN： 0449-3060

  108. A project aiming at the enhancement of NDT&E of stress corrosion cracking Peer-reviewed

    Noritaka Yusa, Kenzo Miya, Ichiro Komura, Zhenmao Chen

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　33　(3-4)　1587-1590　2010

    DOI： 10.3233/JAE-2010-1288 　

    ISSN： 1383-5416

  109. Numerical analysis of an electromagnetic nondestructive evaluation method for rotating machinery Peer-reviewed

    Haoyu Huang, Ryo Kayata, Stephane Perrin, Noritaka Yusa, Kenzo Miya

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　33　(3-4)　1101-1107　2010

    DOI： 10.3233/JAE-2010-1226 　

    ISSN： 1383-5416

  110. Evaluation of stress corrosion cracking as a function of its resistance to eddy currents Peer-reviewed

    Noritaka Yusa, Hidetoshi Hashizume

    NUCLEAR ENGINEERING AND DESIGN　239　(12)　2713-2718　2009/12

    DOI： 10.1016/j.nucengdes.2009.08.032 　

    ISSN： 0029-5493

  111. Electromagnetic nondestructive evaluation of rotating blades Peer-reviewed

    Daigo Kosaka, Haoyu Huang, Noritaka Yusa, Kenzo Miya

    E-Journal of Advanced Maintenance　1　83-86　2009/11/25

  112. Application of monochromatic keV X-ray source to X-ray drug delivery system Peer-reviewed

    Mitsuru Uesaka, Hiroki Taguchi, Azusa Mori, Noritaka Yusa, Takamitsu Kato, Ryuichi Okayasu

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　608　(1)　S47-S50　2009/09

    DOI： 10.1016/j.nima.2009.05.191 　

    ISSN： 0168-9002

  113. Sizing defects much deeper than the depth of penetration from eddy current signals

    Noritaka Yusa, Kenzo Miya

    10th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering　341-348　2009

    Publisher: Slovenian Society for Non-Destructive Testing

  114. A nondestructive strategy to evaluate deep near-side defects from eddy current signals Peer-reviewed

    Noritaka Yusa, Ladislav Janousek, Kenzo Miya

    Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A　75　(759)　1454-1459　2009

    Publisher: Japan Society of Mechanical Engineers

    DOI： 10.1299/kikaia.75.1454 　

    ISSN： 0387-5008

  115. Some advances in numerical analysis techniques for quantitative electromagnetic nondestructive evaluation Invited Peer-reviewed

    Zhenmao Chen, Noritaka Yusa, Kenzo Miya

    NONDESTRUCTIVE TESTING AND EVALUATION　24　(1-2)　69-102　2009

    DOI： 10.1080/10589750802195501 　

    ISSN： 1058-9759

  116. Numerical evaluation of the effectiveness of colloidal gold as a contrast agent Peer-reviewed

    Noritaka Yusa, Meiling Jiang, Kazue Mizuno, Mitsuru Uesaka

    Radiological Physics and Technology　2　(1)　33-39　2009/01

    DOI： 10.1007/s12194-008-0041-2 　

    ISSN： 1865-0333

  117. Development of computational inversion techniques to size cracks from eddy current signals Invited Peer-reviewed

    Noritaka Yusa

    NONDESTRUCTIVE TESTING AND EVALUATION　24　(1-2)　39-52　2009

    DOI： 10.1080/10589750802195469 　

    ISSN： 1058-9759

  118. Discussion on the equivalent conductivity and resistance of stress corrosion cracks in eddy current simulations Peer-reviewed

    Noritaka Yusa, Kenzo Miya

    NDT & E INTERNATIONAL　42　(1)　9-15　2009/01

    DOI： 10.1016/j.ndteint.2008.09.007 　

    ISSN： 0963-8695

  119. Enhancements of eddy current testing techniques for quantitative nondestructive testing of key structural components of nuclear power plants Peer-reviewed

    Zhenmao Chen, Noritaka Yusa, Kenzo Miya

    NUCLEAR ENGINEERING AND DESIGN　238　(7)　1651-1656　2008/07

    DOI： 10.1016/j.nucengdes.2007.12.015 　

    ISSN： 0029-5493

  120. Multiprobe inspection for enhancing sizing ability in eddy current nondestructive testing Peer-reviewed

    Ladislav Janousek, Klara Capova, Noritaka Yusa, Kenzo Miya

    IEEE TRANSACTIONS ON MAGNETICS　44　(6)　1618-1621　2008/06

    DOI： 10.1109/TMAG.2008.916547 　

    ISSN： 0018-9464

  121. Diagnosis of damages of wings of rotor by electromagnetic field measurement Peer-reviewed

    Kazuyuki Demachi, Sergei Rybalko, Noritaka Yusa

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　28　(1-2)　313-320　2008

    ISSN： 1383-5416

  122. Sizing of long stress corrosion crack from 2D ECT signals by using a multisegment inverse analysis strategy Peer-reviewed

    Li Wang, Zhenmao Chen, Tian-Jian Lu, Minglong Xu, Noritaka Yusa, Kenzo Miya

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　28　(1-2)　155-161　2008

    ISSN： 1383-5416

  123. Numerical modeling of general cracks from the viewpoint of eddy current simulations Peer-reviewed

    Noritaka Yusa, Stephane Perrin, Kazue Mizuno, Kenzo Miya

    NDT & E INTERNATIONAL　40　(8)　577-583　2007/12

    DOI： 10.1016/j.ndteint.2007.04.002 　

    ISSN： 0963-8695

  124. A nondestructive strategy for the distinction of natural fatigue and stress corrosion cracks based on signals from eddy current testing Peer-reviewed

    Zhenmao Chen, Ladislav Janousek, Noritaka Yusa, Kenzo Miya

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME　129　(4)　719-728　2007/11

    DOI： 10.1115/1.2767365 　

    ISSN： 0094-9930

  125. Eddy current inspection of closed fatigue and stress corrosion cracks Peer-reviewed

    Noritaka Yusa, Stephane Perrin, Kazue Mizuno, Zhenmao Chen, Kenzo Miya

    MEASUREMENT SCIENCE AND TECHNOLOGY　18　(11)　3403-3408　2007/11

    DOI： 10.1088/0957-0233/18/11/021 　

    ISSN： 0957-0233

    eISSN： 1361-6501

  126. Controlling alternating current distribution inside conductive material leads to a novel volumetric examination method - Experimental verification Peer-reviewed

    Noritaka Yusa, Ladislav Janousek, Kenzo Miyal

    MATERIALS TRANSACTIONS　48　(6)　1162-1165　2007/06

    DOI： 10.2320/matertrans.I-MRA2007840 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  127. Numerical evaluation of the ill-posedness of eddy current problems to size real cracks Peer-reviewed

    Noritaka Yusa, Haoyu Huang, Kenzo Miya

    NDT & E INTERNATIONAL　40　(3)　185-191　2007/04

    DOI： 10.1016/j.ndteint.2006.10.012 　

    ISSN： 0963-8695

  128. Eddy current data for characterizing less volumetric stress corrosion cracking in nonmagnetic materials Peer-reviewed

    Noritaka Yusa, Stephane Perrin, Kenzo Miya

    MATERIALS LETTERS　61　(3)　827-829　2007/02

    DOI： 10.1016/j.matlet.2006.05.071 　

    ISSN： 0167-577X

  129. Sizing of volumetric stress corrosion crack from eddy current testing signals with consideration of crack width

    Zhenmao Chen, Noritaka Yusa, Kenzo Miya

    Studies in Applied Electromagnetics and Mechanics　28　259-266　2007

    ISSN： 1383-7281 1879-8322

  130. Superposition of several phase-shifted exciting fields for crack evaluation

    Ladislav Janousek, Noritaka Yusa, Kenzo Miya

    Studies in Applied Electromagnetics and Mechanics　28　83-90　2007

    ISSN： 1383-7281 1879-8322

  131. Design of a remote field eddy current probe dedicated for inspection of a magnetic tube from its outer surface

    Tomas Marek, Daniela Gombarska, Ladislav Janousek, Klara Capova, Noritaka Yusa, Kenzo Miya

    Studies in Applied Electromagnetics and Mechanics　28　147-152　2007

    ISSN： 1383-7281 1879-8322

  132. Development of the optimization model for TBM time intervals in maintenance methods combined TBM and CBM Peer-reviewed

    Yuanjin Ling, Koichi Maki, Noritaka Yusa, Kenzo Miya

    Transactions of the Atomic Energy Society of Japan　6　(3)　312-319　2007

    Publisher: Atomic Energy Society of Japan

    DOI： 10.3327/taesj.J06.030 　

    ISSN： 1347-2879

  133. Controlling alternating current distribution inside conductive material leads to a novel volumetric examination method - experimental verification Peer-reviewed

    遊佐訓孝, Ladislav Janousek, 宮健三

    非破壊検査　55　(10)　531-535　2006/10

    Publisher: The Japanese Society for Non-Destructive Inspection

    DOI： 10.11396/jjsndi.55.531 　

    ISSN： 0367-5866

    More details Close

    This paper experimentally demonstrates that controlling AC distribution inside conductive material enables one to perform volumetric examination using electromagnetic phenomena. Several current distributions are superposed to locally realize AC distribution having a phase difference of 180 degrees between currents flowing near the surface and those deeply inside, and having non-exponential decay in depth direction. Experimental results clearly show that measuring the phase of magnetic field outside the material as a function of the ratio of the superposition provides information about the depth of defects quantitatively. In addition, this approach is applicable even though the depth of defects is much deeper than the standard depth of penetration; experimental results show clear differences between signals due to near-side notches 10, 12, 15, and 20 mm deep, when an exciting frequency of 100 kHz is adopted.

  134. Utilization of two-directional AC current distribution for enhancing sizing ability of electromagnetic nondestructive testing methods Peer-reviewed

    Ladislav Janousek, Noritaka Yusa, Kenzo Miya

    NDT & E INTERNATIONAL　39　(7)　542-546　2006/10

    DOI： 10.1016/j.ndteint.2006.03.005 　

    ISSN： 0963-8695

  135. Detection of embedded fatigue cracks in Inconel weld overlay and the evaluation of the minimum thickness of the weld overlay using eddy current testing Invited Peer-reviewed

    Noritaka Yusa, Ladislav Janousek, Mihai Rebican, Zhenmao Chen, Kenzo Miya, Naoki Chigusa, Hajime Ito

    NUCLEAR ENGINEERING AND DESIGN　236　(18)　1852-1859　2006/09

    DOI： 10.1016/j.nucengdes.2006.02.011 　

    ISSN： 0029-5493

  136. Shape reconstruction of multiple cracks from ECT signals by means of a stochastic method Peer-reviewed

    M Rebican, ZM Chen, N Yusa, L Janousek, K Miya

    IEEE TRANSACTIONS ON MAGNETICS　42　(4)　1079-1082　2006/04

    DOI： 10.1109/TMAG.2006.870967 　

    ISSN： 0018-9464

  137. Fast simulation of ECT signal due to a conductive crack of arbitrary width Peer-reviewed

    ZM Chen, M Rebican, N Yusa, K Miya

    IEEE TRANSACTIONS ON MAGNETICS　42　(4)　683-686　2006/04

    DOI： 10.1109/TMAG.2006.870973 　

    ISSN： 0018-9464

  138. Caution when applying eddy current inversion to stress corrosion cracking Peer-reviewed

    N Yusa, L Janousek, M Rebican, ZM Chen, K Miya, N Dohi, N Chigusa, Y Matsumoto

    NUCLEAR ENGINEERING AND DESIGN　236　(2)　211-221　2006/01

    DOI： 10.1016/j.nucengdes.2005.06.016 　

    ISSN： 0029-5493

  139. Diagnostics of stress corrosion and fatigue cracks using benchmark signals Peer-reviewed

    N Yusa, L Janousek, ZM Chen, K Miya

    MATERIALS LETTERS　59　(28)　3656-3659　2005/12

    DOI： 10.1016/j.matlet.2005.06.038 　

    ISSN： 0167-577X

  140. Excitation with phase shifted fields-enhancing evaluation of deep cracks in eddy-current testing Peer-reviewed

    L Janousek, ZM Chen, N Yusa, K Miya

    NDT & E INTERNATIONAL　38　(6)　508-515　2005/09

    DOI： 10.1016/j.ndteint.2005.01.012 　

    ISSN： 0963-8695

  141. Eddy current inversions of defects in rough welds using a simplified computational model Peer-reviewed

    Noritaka Yusa, Ladislav Janousek, Mihai Rebican, Zhenmao Chen, Kenzo Miya

    NONDESTRUCTIVE TESTING AND EVALUATION　20　(3)　191-199　2005/09

    DOI： 10.1080/10589150500291776 　

    ISSN： 1058-9759

  142. Application of eddy current inversion technique to the sizing of defects in Inconel welds with rough surfaces Peer-reviewed

    N Yusa, E Machida, L Janousek, M Rebican, ZM Chen, K Miya

    NUCLEAR ENGINEERING AND DESIGN　235　(14)　1469-1480　2005/06

    DOI： 10.1016/j.nucengdes.2005.01.005 　

    ISSN： 0029-5493

  143. Sizing of stress corrosion cracking on austenitic stainless piping in a nuclear power plant from eddy current NDT signals Peer-reviewed

    Noritaka Yusa, Zhenmao Chen, Kenzo Miya

    NONDESTRUCTIVE TESTING AND EVALUATION　20　(2)　103-114　2005/06

    DOI： 10.1080/10589750500209554 　

    ISSN： 1058-9759

  144. Investigation of numerical precision of 3-D RFECT signal simulations Peer-reviewed

    N Rebican, Z Chen, N Yusa, K Miya, T Uchimoto, T Takagi

    IEEE TRANSACTIONS ON MAGNETICS　41　(5)　1968-1971　2005/05

    DOI： 10.1109/TMAG.2005.846281 　

    ISSN： 0018-9464

  145. Three-dimensional inversion of volumetric defects profiles from electromagnetic nondestructive testing signals by means of stochastic methods with the aid of parallel computation Peer-reviewed

    N Yusa, M Rebican, ZM Chen, K Miya, T Uchimoto, T Takagi

    INVERSE PROBLEMS IN SCIENCE AND ENGINEERING　13　(1)　47-63　2005/02

    DOI： 10.1080/10682760410001710150 　

    ISSN： 1741-5977

  146. A novel eddy current testing probe suitable to the inspection of thick structures

    Ladislav Janousek, Zhenmao Chen, Noritaka Yusa, Kenzo Miya

    NDT in Progress: 3rd International Workshop of NDT Experts, Proceedings　2005

    Publisher: Brno University of Technology

  147. Application of a superconductor to the shield of a remote field eddy current testing probe Peer-reviewed

    N Yusa, K Demachi, ZM Chen

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　19　(1-4)　41-46　2004

    ISSN： 1383-5416

  148. Reconstruction of multiple cracks in an ECT round-robin test Peer-reviewed

    M Rebican, N Yusa, ZM Chen, K Miya, T Uchimoto, T Takagi

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　19　(1-4)　399-404　2004

    ISSN： 1383-5416

  149. Advanced MFLT for detecting far side defects in a welding part of an austenitic stainless steel plate Peer-reviewed

    ZM Chen, N Yusa, K Miya, A Tanahashi, K Sakai, N Chigusa

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　19　(1-4)　527-532　2004

    ISSN： 1383-5416

  150. BWR内部構造物のインコネル溶接部への渦電流探傷検査の適用性評価研究 Peer-reviewed

    町田栄治, 遊佐訓孝

    火力原子力発電　5　34-41　2004

  151. Inversion techniques for eddy current NDE using optimization strategies and a rapid 3D forward simulator Peer-reviewed

    ZM Chen, N Yusa, M Rebican, K Miya

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　20　(3-4)　179-187　2004

    ISSN： 1383-5416

  152. Large-scale parallel computation for the reconstruction of natural stress corrosion cracks from eddy current testing signals Peer-reviewed

    N Yusa, ZM Chen, K Miya, T Uchimoto, T Takagi

    NDT & E INTERNATIONAL　36　(7)　449-459　2003/10

    DOI： 10.1016/S0963-8695(03)00067-7 　

    ISSN： 0963-8695

  153. 大規模並列化メタ戦略によるECT信号からの自然欠陥形状逆解析 Peer-reviewed

    遊佐訓孝, 陳振茂, 宮健三, 内一哲哉, 高木敏行

    非破壊検査　52　(10)　2003

  154. ECT逆問題における各種並列化メタ戦略の比較検討 Peer-reviewed

    遊佐訓孝, 陳振茂, 宮健三, 内一哲哉, 高木敏行

    非破壊検査　52　504-510　2003

  155. Generalized neural network approach to eddy current inversion for real cracks Peer-reviewed

    N Yusa, WY Cheng, ZM Chen, K Miya

    NDT & E INTERNATIONAL　35　(8)　609-614　2002/12

    DOI： 10.1016/S0963-8695(02)00048-8 　

    ISSN： 0963-8695

  156. A Reliability Index for Assessment of Crack Profile Reconstructed from ECT Signals Using a Neural-network Approach Peer-reviewed

    YUSA Noritaka, CHENG Weiying, CHEN Zhenmao, MIYA Kenzo

    非破壊検査　51　(1)　39-45　2002/01

    Publisher: 日本非破壊検査協会

    ISSN： 0367-5866

  157. Profile reconstruction of simulated natural cracks from eddy current signals Peer-reviewed

    N Yusa, WY Cheng, T Uchimoto, K Miya

    NDT & E INTERNATIONAL　35　(1)　9-18　2002/01

    DOI： 10.1016/S0963-8695(01)00017-2 　

    ISSN： 0963-8695

  158. Inversion of eddy current NDE signals using genetic algorithm Peer-reviewed

    N Yusa, ZM Chen, K Miya

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　15　(1-4)　249-255　2001

    ISSN： 1383-5416

  159. Quantitative profile evaluation of natural cracks in a steam generator tube from eddy current signals Peer-reviewed

    N Yusa, ZM Chen, K Miya

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS　12　(3-4)　139-150　2000

    ISSN： 1383-5416

Show all ︎Show first 5

Misc. 24

  1. 革新的核融合炉実現に向けた分割型高温超伝導マグネットの研究開発～高温超伝導導体の着脱可能な接合法の開発状況～

    伊藤悟, 橋爪秀利, 遊佐訓孝, 柳 長門, 田村 仁, 相良明男

    プラズマ核融合学会誌　92　(8)　623-624　2016/08

    Publisher: プラズマ・核融合学会

    ISSN： 0918-7928

  2. A214 Evaluation of Applicability of Extremely Low Frequency Eddy Current Testing for Monitoring Pipe Wall Thinning

    TAJIMA Naoki, SASAKI Kota, YUSA Noritaka, HASHIZUME Hidetoshi

    National Symposium on Power and Energy Systems　2015　(20)　187-188　2015/06/07

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    This paper evaluates the applicability of the extremely low frequency eddy current testing to the monitoring of wall thinning appearing on the inner surface of pipes. Magneto-Impedance sensor arrays are used to detect signals due to wall thinning. Plates made of SS400 with artificial grooves are prepared to simulate wall thinning in a large diameter pipe. We carry out numerical simulations and experiments to evaluate the effect of the depth and width of the grooves on signal. The results show the maximum amplitude and the full width at half maximum of signals correspond approximately to the depth and width of the grooves, respectively.

  3. 大型高温超伝導マグネットの開発の現状と展望 -高温超伝導導体の分割と接合を利用した大型マグネットの開発-

    橋爪秀利, 伊藤 悟, 江原真司, 遊佐訓孝, 柳 長門, 田村 仁, 相良明男

    プラズマ核融合学会誌　91　(2)　87-96　2015/02

    Publisher: プラズマ・核融合学会

    ISSN： 0918-7928

  4. Simulated Evaluation of Eddy Current Thermography for Inspection of Joint of Divertor

    Jing WANG, Noritaka YUSA, Hidetoshi HASHIZUME

    The 20th International Workshop on Electromagnetic Nondestructive Evaluation　2015

  5. B224 Time-dependent Neutronic Analysis for Transformation of FLiNaBe in a Fusion Blanket System

    SHISHIDO Hiroki, FURUDATE Yuki, YUSA Noritaka, HASHIZUME Hidetoshi

    National Symposium on Power and Energy Systems　2014　(19)　255-256　2014/06/25

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    This study evaluates nuclear characteristics of molten salt, namely LiF-NaF-BeF_2 (FLiNaBe), from the viewpoint of its application to a liquid blanket system in a fusion reactor. Monte Carlo numerical simulations using MVP-2.0 with JENDL-4.0 data library and time-dependent nuclear transmutation analysis are carried out to evaluate tritium breeding ratio, change in the compositions of the molten salt. Induced radioactivity of Na contained in FLiNaBe is also evaluated. The results of the numerical analysis reveal that the thermophysical properties of FLiNaBe should vary because the compositions of the molten salt definitely change due to the fusion plasma neutron during power plant operation.

  6. Numerical Modeling of Thermal Fatigue Crack from View Point of Eddy Current Testing

    Jing Wang, Noritaka Yusa, Mika Kemppainen, Iikka Virkkunen, Hidetoshi Hashizume

    International Journal of Aerospace and Lightweight Structures　4　(3)　207-215　2014

    DOI： 10.3850/S2010428615100187 　

  7. Modeling of thermal fatigue crack for enhancement of electromagnetic nondestructive evaluation of nuclear power plant

    Jing Wang, Noritaka Yusa, Hongliang Pan, Mika Kemppainen, Iikka Virkkunen, Hidetoshi Hashizume

    International Conference on Nuclear Engineering, Proceedings, ICONE　1　V001T01A026　2013

    Publisher: American Society of Mechanical Engineers (ASME)

    DOI： 10.1115/ICONE21-16033 　

  8. D221 Evaluation of the effect of pipe diameter on applicability of a microwave nondestructive inspection for wall thinning

    SASAKI Kota, YUSA Noritaka, HASHIZUME Hidetoshi

    National Symposium on Power and Energy Systems　2012　(17)　367-370　2012/06/20

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    This study develops a methodology to apply a microwave nondestructive inspection technique, which detects and evaluates flaws appearing inner wall of a pipe from the reflection and transmission of microwave propagating inside the pipe, to a pipe with an arbitrary diameter. Three-dimensional finite element simulations are carried out to evaluate the effect of the profile of a microwave probe on the reflection and transmission of the microwave. The results reveal that elliptic microwave probe, which is newly developed in this study, realizes small reflection at the probe as well as single-mode propagation inside the pipe. Experimental validations using a straight pipe with an inner diameter of 39 mm and length of 2 m confirm that the elliptic microwave probe provides much clearer signals due to a wall thinning than conventional one.

  9. Discussion on distributed conductivity for modeling stress corrosion crack in eddy current testing

    Jing Wang, Noritaka Yusa, Hidetoshi Hashizume, Hongliang Pan

    2012 6th International Conference on Electromagnetic Field Problems and Applications, ICEF'2012　2012

    DOI： 10.1109/ICEF.2012.6310334 　

  10. Finite element modeling of stress corrosion cracking for electromagnetic nondestructive evaluations

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    The 18th Pacific Basin Nuclear Conference　2012

  11. Effect of Shape of Shield on Sensitivity of Remote Field Eddy Current Testing for Inspecting Flaw of Large Diameter Tube

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    The 9th International Conference on Flow Dynamics　2012

  12. C104 Fabrication of imitative stress corrosion cracking using diffusion bonding for the development of nondestructive testing and evaluations

    Yusa Noritaka, HASHIZUME Hidetoshi

    National Symposium on Power and Energy Systems　2011　(16)　25-26　2011/06/22

    Publisher: The Japan Society of Mechanical Engineers

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    This study reports a method to fabricate imitative stress corrosion cracking suitable for the development of nondestructive testing and evaluation methods. The method is to embed a partially-bonded region, which simulates the characteristics of stress corrosion cracking, inside a material by bonding together surfaces having artificial grooves. Since the sizes of the grooves are smaller than the spatial resolution of nondestructive testing method applied, the material property realized can be regarded as uniform as the actual stress corrosion cracking. The grooves are introduced using mechanical machining, which enables one to control the characteristics of the simulated flaw. Four specimens made of type 316L austenitic stainless steel are fabricated. The method is demonstrated by visual and eddy current examinations.

  13. C103 Evolution of crack radar by using dispersion compensation method

    HASHIZUME Hidetoshi, YUSA Noritaka, SAKAI Yasutomo

    National Symposium on Power and Energy Systems　2011　(16)　23-24　2011/06/22

    Publisher: The Japan Society of Mechanical Engineers

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    This study proposes a signal processing method that significantly enhances the nondestructive evaluation of flaws appearing inside pipe wall from the reflection of microwaves propagating inside the pipe. The signal processing method modifies the phase of incident microwave as a function of frequency so that the reflection due to an anomaly at a certain distance is observed as a pulse. Validations are carried out both by experiments and finite element simulations using a straight brass pipe with a outer diameter of 25mm and a wall thickness of 3mm. This study considered wall thinning artificially introduced into the inner surface of the pipe. The results of the validations demonstrate the effectiveness of the signal processing method even when wall thinning have a complicated boundary profile.

  14. Investigation of Application of Remote Field Eddy Current Testing for Inspection Flaws in Large Diameter Tubes from Outside

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    The 8th International Conference on Flow Dynamics　2011

  15. 保全学会活動報告 保全科学サマースクール2010報告

    高木 敏行, 遊佐 訓孝

    保全学　9　(3)　66-68　2010/10

    Publisher: 日本保全学会

    ISSN： 1348-7795

  16. 電磁設備診断装置電磁郎の開発

    萱田良, 黄皓宇, Stephane Perrin, 真木紘一, 遊佐訓孝, 宮健三

    検査技術　14　(3)　55-61　2009

    Publisher: 日本工業出版

    ISSN： 1342-9825

  17. 「状態監視保全技術に関する調査検討分科会」の活動

    山下和彦, 遊佐訓孝

    保全学　7　77-79　2009

  18. Souped-up and stabilization of a portable X-band linac X-ray source for NDT

    Natsui Takuya, Akimoto Mitsuo, Yoshida Mitsuhiro, Yamamoto Masashi, Nakamura Naoki, Tanabe Eiji, Morita Seiki, Yamamoto Tomohiko, Sakamoto Fumito, Taniguchi Yoshihiro, Taguchi Hiroki, Yusa Noritaka, Uesaka Mitsuru, Fukuda Shigeki, Higo Toshiyasu

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan　2008　(0)　157-157　2008

    Publisher: Atomic Energy Society of Japan

    DOI： 10.11561/aesj.2008f.0.157.0 　

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    我々は、250kW MagnetronをRF源とする9.4GHz X-band linacを用いた可搬型のX線非破壊検査装置の開発を行っている．現在，装置が完成し電子ビーム測定，X線撮影試験を行った．ただし，ビーム電流不足やビーム電流のパルス内振動などの問題が確認されたので，現在改良を行っている．

  19. 225 Development of Risk-Informed Piping Optimal Design Method

    LING Yuanjin, YUSA Noritaka, MAKI Koichi, MIYA Kenzo, HIDA Takahiko

    Dynamics & Design Conference　2007　"225-1"-"225-5"　2007/09/25

    Publisher: The Japan Society of Mechanical Engineers

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    In the present work, relationship between probability of piping failure and loss of function in the system, and risk by piping failure are evaluated for the system of plural pipes in nuclear power plants. Appling these risk-informed, the calculation model and the code to minimize amount of total piping weight (piping cost) is developed by performing suitable thickness distribution of every piping under the condition of equivalent or lower than the present risk. Validity and applicability of the code are investigated.

  20. X-ray Imaging Test using portable X-band X-ray Source

    Yamamoto Tomohiko, Fukuda Shigeki, Yoshida Mitsuhiro, Higo Toshiyasu, Akemoto Mitsuo, Nakamura Naoki, Tanabe Eiji, Morita Seiki, Yamamoto Masashi, Natsui Takuya, Mizuno Kazue, Jiang Meiling, Taniguchi Yoshihiro, Yusa Noritaka, Sakumi Akira, Sakamoto Fumito, Uesaka Mitsuru

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan　2007　(0)　147-147　2007

    Publisher: Atomic Energy Society of Japan

    DOI： 10.11561/aesj.2007f.0.147.0 　

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    低パワーmagnetronと9.4GHz X-band Linacを用いたX線非破壊検査装置の開発を行っている。本発表ではRFテスト・電子加速試験ならびにX線生成試験について報告する。

  21. Current status of NE activities in Japanese nuclear industry

    Kenzo Miya, Noritaka Yusa, Nobuo Uesugi, Hiroshi Murakami

    Electromagnetic Nondestructive Evaluation (VII)　3-10　2006

    Publisher: IOS Press

  22. A Novel Eddy Current Excitation System to Evaluate Defects in Thick Structures

    JANOUSEK Ladislav, CHEN Zhenmao, YUSA Noritaka, MIYA Kenzo

    54　(4)　206-211　2005/04/01

    Publisher: 日本非破壊検査協会

    ISSN： 0367-5866

  23. 渦電流探傷試験の数値解析

    高木敏行, 遊佐訓孝

    日本AEM学会誌　9　(1)　48-54　2001

  24. 電磁非破壊評価における逆解析技術

    小島史男, 遊佐訓孝, 陳振茂

    日本AEM学会誌　9　(1)　55-65　2001

Show all ︎Show first 5

Books and Other Publications 1

  1. Electromagnetic Nondestructive Evaluation (XIX)

    Noritaka Yusa, Tetsuya Uchimoto, Hiroaki Kikuchi

    IOS Press　2016

Presentations 265

  1. 渦電流探傷法を用いた熱遮蔽被膜厚さ評価法の開発

    藤田 脩椰, 吉岡 宰次郎, 遊佐 訓孝, スー ビンジエ, リー ヨン

    非破壊検査協会2024年度 秋季講演大会　2024/11/08

  2. 生態系のつり合いを意識させるための中学生を対象としたカードゲーム教材の開発

    有住美彦, 遊佐訓孝, 中山慎也

    日本理科教育学会第63回東北支部大会　2024/11/02

  3. Circumferential localization of wall thinning on the inner surface of a pipe using microwaves

    Yijun Guo, Noritaka Yusa, Hidetoshi Hashizume, Ziran Chen, Xiaokang Liu

    The 20th International Conference on Precision Engineering　2024/10/24

  4. Probabilistic detection capability evaluation of eddy current testing to detect cracks on the divertor monoblock surface

    Fanwei Yu, Takuma Tomizawa, Noritaka Yusa, Masayuki Tokitani

    33rd Symposium on Fusion Technology　2024/09/24

  5. Effect of residual Stress on the electromagnetic non-destructive testing signals from components made of F82H steel

    Haru Amano, Noritaka Yusa, Takashi Nozawa

    33rd Symposium on Fusion Technology　2024/09/24

  6. ベイズ推定を用いた配管肉厚経年変化評価における超音波肉厚測定誤差の影響評価

    池田寛太郎, 冨澤拓真, 遊佐訓孝

    日本原子力学会2024年秋の大会　2024/09/12

  7. 核融合炉ダイバータモノブロックの割れに対する電位差法を用いた確率的深さ評価手法の開発

    本條和, 冨澤拓真, 遊佐訓孝, 時谷政行

    第15回核融合エネルギー連合講演会　2024/06/13

  8. F82H鋼および従来鋼材の塑性変形に伴う磁気特性変化が渦電流探傷試験に与える影響の比較

    天野春, 遊佐訓孝, 野澤貴史

    第15回核融合エネルギー連合講演会　2024/06/13

  9. Looking back on the Fukushima Accident Invited

    Noritaka Yusa

    The 10th International Conference on Energy, Resources, Environment and Sustainable Development　2024/05/31

  10. 中学生に対するエネルギー教育を目的としたカードゲームの開発

    和泉怜, 遊佐訓孝

    日本原子力学会支部第47回研究交流会　2023/12/14

  11. Comparison study of pulsed eddy current testing and eddy current testing in thickness measurement

    Jiuhao Ge, Noritaka Yusa

    2023/11/14

  12. Probabilistic sizing of fatigue cracks from eddy current signals

    Takuma Tomizawa, Noritaka Yusa

    21st International Symposium on Applied Electromagnetics and Mechanics　2023/11/14

  13. Evaluation of the effect of the current injection pattern to the result of reconstruction of monotonicity based impedance tomography

    Shuya Fujita, Noritaka Yusa

    21st International Symposium on Applied Electromagnetics and Mechanics　2023/11/14

  14. High-frequency ultrasonic inspection of the divertor’s cooling pipe with a screwed inner wall

    Mohammadjavad Faridafshin, Noritaka Yusa, Weixi Chen

    21st International Symposium on Applied Electromagnetics and Mechanics　2023/11/14

  15. Application of eddy current testing to the surface inspection of divertor tungsten monoblocks

    Fanwei Yu, Takuma Tomizawa, Noritaka Yusa, Masayuki Tokitani

    21st International Symposium on Applied Electromagnetics and Mechanics　2023/11/14

  16. Pipe failure prediction model based on periodic pipe wall thickness measurement using electromagnetic acoustic resonance

    Noritaka Yusa, Sho Takeda, Tetsuya Uchimoto, Mashiko Endo, Yasuhiro Saito

    21st International Symposium on Applied Electromagnetics and Mechanics　2023/11/13

  17. ボードゲーム教材「エネルギーゲーム」の改善～中学校・高校での授業利用をめざして～

    若松 未結, 中山 慎也, 遊佐 訓孝

    理科教育学会第73回全国大会, 高地大学　2023/09/24

  18. 核融合原型炉ブランケット冷却配管内面割れに対する渦電流探傷法の適用性評価

    天野 春, 加子 瑞騎, 野澤 貴史, 遊佐 訓孝

    日本保全学会第19回学術講演会　2023/08/28

  19. Reliability Analysis of Pipe Wal Thinning based on Quantification of Ultrasonic Testing

    Kantaro Ikeda, Noritaka Yusa, Takuma Tomizawa, Haicheng Song

    13th European Conference on Non-destructive Testing　2023/07/05

  20. 渦電流探傷によるタングステンモノブロックの表面割れ検出における端部効果の影響への調査

    兪 帆緯, 冨澤 拓真, 遊佐 訓孝, 時谷 政行

    第35回電磁力関連のダイナミクス　2023/06/13

  21. マイクロ波を用いた配管減肉形状評価における減肉端部形状の周波数領域信号への影響評価

    吉川諒, Guo Yijun, 遊佐訓孝, 橋爪秀利

    令和5年度日本非破壊検査協会東北支部第９回支部会・講演会　2023/04/14

  22. Influence of the size of cooling tubes in the blanket of a fusion demo reactor on the capability of non-destructive inspection

    Mizuki Kako, Takuma Tomizawa, Jiuhao Ge, Xiaoyong Ruan, Takashi Nozawa, Noritaka Yusa

    16th Asia Pacific Conference for Non-destructive Testing 2023　2023/03/01

  23. 高周波超音波によるダイバータ冷却管接合界面の健全性評価

    遊佐訓孝, ファリダフシン モハンマドジャバド, 鈴木 良治, 古川 敬, 時谷 政行, 増崎 貴

    第39回プラズマ・核融合学会年会　2022/11/23

  24. Improvement of Measurement Accuracy of Pipe Wall Thinning Inspection by Electromagnetic Acoustic Resonance Method

    Shuhei Kimura, Sho Takeda, Tetsuya Uchimoto, Noritaka Yusa

    The 19th International Conference on Flow Dynamics　2022/11/10

  25. The effect of the grain size of divertor’s cooling pipe on the capability of high-frequency ultrasonic tests to evaluate the quality of the bond between divertor’s cooling pipe and armor

    Mohammadjavad Faridafshin, Noritaka Yusa, Ryouji Suzuki, Takashi Furukawa, Masayuki Tokitani, Suguru Masuzaki

    The 31st International Toki Conference on Plasma and Fusion Research　2022/11/10

  26. ベイズ推定を利⽤した確率論⼿法による渦電流信号からのスリット⼨法評価

    冨澤拓真, 遊佐訓孝

    第31回MAGDAコンファレンス in 鹿児島　2022/11/02

  27. The applicability of remote field eddy current testing to outer flaws on cooling tubes in the blanket of a fusion DEMO reactor

    Mizuki Kako, Xiaoyang Ruan, Takuma Tomizawa, Jiuhao Ge, Takashi Nozawa, Noritaka Yusa

    32nd Symposium on Fusion Technology　2022/09/20

  28. High frequency ultrasonic inspection of the bonded interface between a divertor monoblock and a cooling pipe

    Noritaka Yusa, Ryouji Suzuki, Takashi Furukawa, Masayuki Tokitani

    32nd Symposium on Fusion Technology　2022/09/20

  29. Using a board game to understand national power policy Invited

    Noritaka Yusa, Ryoju Hamada

    2022 International Conference on Sustainable Energy Development　2022/08/17

  30. ボードゲームを用いたエネルギーベストミックス教材の教員研修への活用に向けて

    関遥香, 中山慎也, 浜田良樹, 遊佐訓孝

    エネルギー環境教育学会第16回全国大会　2022/07/31

  31. 超音波肉厚評価の精度に起因する配管減肉予測の不確実性の定量的評価

    池田寛太郎, 冨澤拓真, 遊佐訓孝

    日本保全学会第18回学術講演会　2022/07/14

  32. Gaming Simulation Design to learn Best Mix of Power Sources

    Ryoju Hamada, Noritaka Yusa, Tomomi Kaneko

    The 53rd annual international conference of the International Simulation and Gaming Association　2022/07/04

  33. Probability of detection considering both the depth and circumferential length of pipe wall thinning using microwave NDT

    Yijun Guo, Takuma Tomizawa, Noritaka Yusa

    25th International Workshop on Electromagnetic Nondestructive Evaluation　2022/06/14

  34. A probability of detection model to quantify the detection capability of a sensor-based monitoring method for local wall thinning

    Haicheng Song, Noritaka Yusa

    20th International Symposium on Applied Electromagnetics and Mechanics　2022/06/07

  35. Receiver operating characteristic analysis for evaluating a proper experimental condition of eddy current tests under low signal-to-noise ratio

    Fanwei Yu, Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    20th International Symposium on Applied Electromagnetics and Mechanics　2022/06/07

  36. Applicability of simulation-assisted probability of detection analysis considering multiple signal features to eddy current testing of weld

    Takuma Tomizawa, Yujin Guo, Noritaka Yusa

    20th International Symposium on Applied Electromagnetics and Mechanics　2022/06/07

  37. Evaluation of the applicability of microwave nondestructive testing to detection of cracking on the inner surface of a pipe

    Yijun Guo, Noritaka Yusa, Hidetoshi Hashizume

    20th International Symposium on Applied Electromagnetics and Mechanics　2022/06/07

  38. マイクロ波NDTにおける配管内壁減肉の周方向位置及び寸法評価

    Yijun Guo, Noritaka Yusa, Weiying Cheng, Hidetoshi Hashizume

    第34回「電磁力関連のダイナミクス」シンポジウム　2022/05/12

  39. 核融合原型炉ブランケット冷却管検査のための渦電流探傷試験における試験周波数影響評価

    加子瑞騎, 冨澤 拓真, 葛 玖浩, 野澤 貴史, 遊佐 訓孝

    第34回「電磁力関連のダイナミクス」シンポジウム　2022/05/11

  40. 超音波肉厚評価の精度が配管減肉管理の信頼性に及ぼす影響の評価

    池田寛太郎, 宋海成, 遊佐訓孝

    令和4年度日本非破壊検査協会東北支部第９回支部会・講演会　2022/04/20

  41. Comparison among detection capabilities of eddy current probes against corrosion pits on stainless steel cladding by receiver operating characteristic curves

    Fanwei Yu, Haicheng Song, Takuma Tomizawa, Noritaka Yusa

    2021/12/07

  42. オーステナイト系ステンレス鋼孔⾷に対する渦電流探傷試験の確率論的きず検出性評価のための複数信号特徴量を⽤いた複数きずパラメータa/a法の検討

    冨澤拓真, 宋海成, 兪帆緯, 遊佐訓孝

    第30回MAGDAコンファレンス in 広島　2021/12/07

  43. Application of High-Frequency Ultrasonic Test to the Non-Destructive Inspection of W-Cu Bonded Interface

    Noritaka Yusa, Takashi Furukawa, Masayuki Tokitani, Suguru Masuzaki

    The 30th International Toki Conference on Plasma and Fusion Research　2021/11/18

  44. Probe design for the eddy current inspection of cooling tubes in the blanket of a prototype fusion reactor

    Mizuki Kako, Takuma Tomizawa, Jiuhao Ge, Takashi Nozawa, Noritaka Yusa

    The 30th International Toki Conference on Plasma and Fusion Research　2021/11/18

  45. Frequency spectrum analysis of microwave signals reflected from partial pipe wall thinning

    Yijum Guo, Guanren Chen, Noritaka Yusa, Hidetoshi Hashizume

    Eighteenth International Conference on Flow Dynamics　2021/10/28

  46. Development of a board game to study the characteristics of power sources and power generation mix

    2021/09/08

  47. 内面の粗さと曲率を考慮した電磁超音波共鳴法による配管減肉評価

    木村 周平, 武田 翔, 内一 哲哉, 遊佐 訓孝, Gildas Diquet

    日本保全学会第１７回学術講演会

  48. Reliability analysis of pipes suffering wall thinning based on extreme value analysis of ultrasonic thickness measurement

    2021/07/06

  49. 核融合原型炉ブランケット冷却管渦電流探傷試験におけるプローブ方式によるきず検出性能比較

    加子瑞騎, 葛玖浩, 冨澤拓真, 野澤貴史, 遊佐訓孝

    日本保全学会第１７回学術講演会

  50. Nondestructive inspection of W-Cu bonded interface using high frequency ultrasound

  51. 多変量正規分布に基づく渦電流探傷信号によるきず検出確率モデルの高度化

    冨澤拓真, 宋海成, 遊佐訓孝

    第３３回電磁力関連のダイナミクスシンポジウム

  52. センサ配置影響を考慮した低周波電磁場測定による配管減肉モニタリング有効性評価のための検出確率モデルの開発

  53. Comparison between detection capabilities of uniform and rotating eddy current testing against pitting on stainless steel weld cladding using a probabilistic analysis

    Fanwei Yu, Jiuhao Ge, Haicheng Song, Takuma Tomizawa, Noritaka Yusa

    2021/04/16

  54. 核融合原型炉ブランケット冷却管検査に対する渦電流探傷法の適用性評価

    加子瑞騎, 葛玖浩, 遊佐訓孝, 野澤貴史

    日本非破壊検査協会東北支部講演会　2021/04/16

  55. 複数信号特徴量を用いたâ/a法に基づくステンレス鋼溶接部に対する渦電流探傷試験の確率論的きず検出性評価手法の開発

    冨澤拓真, 宋海成, 遊佐訓孝

    第24回 電磁気応用部門・磁粉・浸透・目視部門・漏れ試験部門合同シンポジウム 「表面探傷技術による健全性診断、品質検査」　2021/03/19

  56. Relationship between pipe wall thinning size and resonant frequency in microwave NDT

    2021/03/19

  57. Probabilistic fracture mechanics model of wall-thinned pipe by incorporating multi- dimensional probability of detection

    Haicheng Song, Noritaka Yusa

    The 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems

  58. Numerical analysis for pipe wall thinning detection using electrical impedance tomography

    Pencheng Pan, Noritaka Yusa

    Seventeenth International Conference on Flow Dynamics

  59. Development of Three-dimensional Probability of detection model for monitoring local wall thinning in pipes

    Haicheng Song, Noritaka Yusa

    Seventeenth International Conference on Flow Dynamics

  60. Feature combination study of multi frequency ECT on nonferromagnetic plate thickness measurement

    Jiuhao Ge, Noritaka Yusa, Mengbao Fan

  61. Nondestructive detection of flaws beneath friction stir processed high strength tungsten coating using high-frequency ultrasonic microscopy

  62. Development of nondestructive evaluation technique for mechanical lap joint fabricated with high-temperature superconducting conductor using x-ray microtomography

    Weixi Chen, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume

    The 28th International Toki Conference on Plasma and Fusion Research　2019/12

  63. Probabilistic evaluation the area of coverage of a probe used for eddy current non-destructive inspections International-presentation

    Noritaka Yusa, Takuma Tomizawa, Haicheng Song

    The 19th International Symposium on Applied Electromagnetics and Mechanics　2019/09/15

  64. Experimental verification of improved probability of detection model considering the effect of sensor’s location on low frequency electromagnetic monitoring International-presentation

    Song Haicheng, Noritaka Yusa

    The 19th International Symposium on Applied Electromagnetics and Mechanics　2019/09/15

  65. Experimental Verification of a TE01 Mode Converter to Locate a Crack in a Metal Pipe International-presentation

    Takuya Katagiri, Guanren Chen, Noritaka Yusa, HidetoshiHashizume

    The 19th International Symposium on Applied Electromagnetics and Mechanics　2019/09/15

  66. In-pipe Crack Detection for Multiple Diameters Using TE11 Mode Microwaves International-presentation

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    The 19th International Symposium on Applied Electromagnetics and Mechanics　2019/09/15

  67. Probabilistic evaluation of detection capability of eddy current testing to inspect pitting on a pressure vessel using multiple signal features International-presentation

    Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    The 19th International Symposium on Applied Electromagnetics and Mechanics　2019/09/15

  68. Improved design of a side-incident microwave probe for non-destructive inspection of metallic pipes International-presentation

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    The 24th International Workshop on Electromagnetic Nondestructive Evaluation, Chengdu, China, 2019/09/11-14.　2019/09/11

  69. Development of a signal processing method for metal pipe inspection using multi-mode microwaves International-presentation

    Takuya Katagiri, Guanren Chen, Noritaka Yusa, Hidetoshi Hashizume

    The 24th International Workshop on Electromagnetic Nondestructive Evaluation, Chengdu, China, 2019/09/11-14.　2019/09/11

  70. Probabilistic evaluation of the detection capability of eddy current probes against corrosion pits on inner surface of pressure vessel International-presentation

    Takuma Tomizawa, Haicheng Song, Noritaka Yusa

    The 24th International Workshop on Electromagnetic Nondestructive Evaluation, Chengdu, China, 2019/09/11-14.　2019/09/11

  71. Probabilistic analysis of the capability of EMAR for monitoring wall thinning International-presentation

    Noritaka Yusa, Haicheng Song, Daiki Iwata, Tetsuya Uchimoto, Toshiyuki Takagi, Makoto Moroi

    The 24th International Workshop on Electromagnetic Nondestructive Evaluation　2019/09/11

  72. Inverse analysis for local wall thinning based on multi-frequency signal of low frequency electromagnetic monitoring method International-presentation

    Haicheng Song, Noritaka Yusa

    The 24th International Workshop on Electromagnetic Nondestructive Evaluation　2019/09/11

  73. 複数モードのマイクロ波を利用した金属配管内表面のきず位置推定手法の高精度化

    片桐拓也, 陳冠任, 遊佐訓孝, 橋爪秀利

    第１６回日本保全学会学術講演会　2019/07/24

  74. 電磁超音波共鳴法を用いた配管減肉の評価可能性

    岩田大輝, 武田翔, 内一哲哉, 廣瀬悠一, 遊佐訓孝, 高木敏行

    第１６回日本保全学会学術講演会　2019/07/24

  75. 渦電流探傷法を用いた原子炉圧力容器内張材孔食確率論的検出性評価のための基礎検討

    冨澤拓真, 宋海成, 遊佐訓孝

    「電磁力関連のダイナミクス」シンポジウム　2019/05/22

  76. Experimental verification of the inverse algorithm for estimating local wall thinning in carbon steel pipes based on low frequency electromagnetic monitoring signals

    Haicheng Song, Noritaka Yusa

    日本非破壊検査協会東北支部会・講演会　2019/04/19

  77. 渦電流探傷法によるオーステナイト系ステンレス鋼溶接部腐食検出性のPOD分析

    冨澤拓真, 宋海成, 遊佐訓孝

    日本非破壊検査協会東北支部会・講演会　2019/04/19

  78. TEモードを用いた金属配管内壁のき裂の検出性評価

    片桐拓也, 陳冠任, 冨澤拓真, 遊佐訓孝, 橋爪秀利

    第22回磁粉・浸透・目視部門・電磁気応用部門・漏れ試験部門合同シンポジウム　2019/03/18

  79. A Dynamic Model of the Sustainable Twin Nuclear Fuel Cycle by Introducing Fusion Transmutation Reactors International-presentation

    Hiroki Shishido, Yuta Imanaka, Noritaka Yusa, Hidetoshi Hashizume

    The 27th International Toki Conference on Plasma and Fusion Research & The 13th Asia Pacific Plasma Theory Conference　2018/11/19

  80. Reliability analysis of low frequency electromagnetic method for monitoring local wall thinning in ferromagnetic pipes International-presentation

    Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    4th International Conference on Maintenance Science and Technology　2018/10/23

  81. Experimental evaluation of effect of a bend on microwave NDT International-presentation

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    4th International Conference on Maintenance Science and Technology　2018/10/23

  82. Comparison of the attitudes of university students toward nuclear energy among three Asian countries International-presentation

    Noritaka Yusa, Haicheng Song

    4th International Conference on Maintenance Science and Technology　2018/10/23

  83. Feasibility study for long-lived fission products transmutation using fusion reactors International-presentation

    Taku Kitasaka, Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume

    30th Symposium on Fusion Technology　2018/09/16

  84. Nondestructive testing Using TE mode microwaves in the light of long-range pipe inspection International-presentation

    Takuya Katagiri, Guanren Chen, Noritaka Yusa, Hidetoshi Hashizume

    The 23rd Electromagnetic Nondestructive Evaluation Workshop　2018/09/09

  85. A multi-parameter POD analysis of eddy current testing for the detection of corrosions International-presentation

    Noritaka Yusa, Hidetoshi Hashizume

    The 23rd Electromagnetic Nondestructive Evaluation Workshop　2018/09/09

  86. 核融合炉中性子による核変換生成プルトニウムの高速炉炉心特性への影響評価

    今中佑太, 宍戸博紀, 遊佐訓孝, 橋爪秀利

    日本原子力学会2018年秋の大会　2018/09/05

  87. Estimation of Local Wall Thinning in Carbon Steel Pipes Based on Low Frequency Electromagnetic Monitoring Signals International-presentation

    Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    The 9th International Symposium on Symbiotic Nuclear Power Systems for 21st Century　2018/07/10

  88. 大型据え置き電磁誘導コイルを用いた加熱ジャケット付二重缶検査技術の有限要素法解析評価

    小野陽平, 宋海成, 遊佐訓孝, 橋爪秀利

    日本保全学会第15回学術講演会　2018/07/10

  89. Probability of detection analysis of ultrasonic NDT applied to cracks in austenitic stainless steel welds

    Siqi Meng, Haicheng Song, Noritaka Yusa, Tetsuya Uchimoto, Toshiyuki Takagi, Yuanjin Ling, Hidetoshi Hashizume

    日本保全学会第15回学術講演会　2018/07/10

  90. Evaluation of general applicability of microwave NDT to pipes with a bend focusing on mode conversion

    Guanren Chen, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    2018/07/10

  91. Reliability analysis of low frequency electromagnetic method for monitoring wall thinning in ferromagnetic pipes International-presentation

    Haicheng Song, Noritaka Yusa, Hidetoshi Hashizume

    IEEE Far East NDT/E 2018　2018/07/06

  92. 長寿命核分裂生成物核変換機能を有する核融合ブランケットの工学的成立性評価

    北坂卓, 宍戸博紀, 遊佐訓孝, 橋爪秀利

    第12回核融合エネルギー連合講演会　2018/06/28

  93. 核融合炉による放射性廃棄物システム及び核燃料サイクルの提案

    橋爪 秀利, 遊佐訓孝, 宍戸博紀, 今中佑太, 北坂卓

    第23回動力・エネルギー技術シンポジウム　2018/06/15

  94. 低周波電磁場を用いた再処理施設二重缶底面腐食技術の開発

    小野陽平, 宋海成, 遊佐訓孝, 橋爪秀利

    第23回動力・エネルギー技術シンポジウム　2018/06/15

  95. Evaluation of factors influencing modal conversion at bend in the light of pipe inspection using microwave NDT

    2018/04/20

  96. 低周波電磁場を用いた再処理施設二重缶減肉評価技術の開発研究

    小野陽平, 宋海成, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会東北支部講演会　2018/04/20

  97. 放射性廃棄物の核変換処理を目的とした核融合炉ブランケットの核的性能および伝熱性能に対する冷却材の影響評価

    今中佑太, 宍戸博紀, 遊佐訓孝, 橋爪 秀利

    日本原子力学会2018年春の年会　2018/03/26

  98. Low Frequency Eddy Current Testing for Inspecting Wall Thinning in Ferromagnetic Pipe International-presentation

    Haicheng Song, Naoki Tajima, Noritaka Yusa, Hidetoshi Hashizume

    Fourteenth International Conference on Flow Dynamics　2017/11/01

  99. Neutronics and Thermal Evaluation of Transmuting Minor Actinides in a Magnetic Confinement Fusion System International-presentation

    Yuki Shibayama, Yuki Furudate, Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume

    13th International Symposium of Fusion Nuclear Technology　2017/09/25

  100. Applicability Evaluation of Directional Solidification Method for Purification of Molten Fluorides International-presentation

    Hiroki Shishido, Toshiyuki Onodera, Keitaro Hitomi, Noritaka Yusa, Hidetoshi Hashizume

    13th International Symposium of Fusion Nuclear Technology　2017/09/25

  101. Proposal of a double-strata fuel cycle utilizing fusion reactors to transmute minor actinides International-presentation

    Yuki Furudate, Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume

    13th International Symposium of Fusion Nuclear Technology　2017/09/25

  102. Investigation of Factors Causing Defects at Mechanical Lap joint Fabricated of High-temperature Superconducting Tapes International-presentation

    Weixi Chen, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume

    13th International Symposium of Fusion Nuclear Technology　2017/09/25

  103. Long-range inspection of a crack on the inner surface of a pipe using microwaves International-presentation

    Kota Sasaki, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    22nd International Workshop on Electromagnetic Nondestructive Evaluation　2017/09/06

  104. Applicability Evaluation of Microwaves for Detecting Corrosion under Insulation International-presentation

    Takuya Katagiri, Kota Sasaki, Noritaka Yusa, Hidtoshi Hashizume

    22nd International Workshop on Electromagnetic Nondestructive Evaluation　2017/09/06

  105. Long-range inspection of a pipe with a bend using microwaves International-presentation

    Shoya Uoshita, Kota Sasaki, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    The 18th International Symposium on Applied Electromagnetics and Mechanics　2017/09/03

  106. Proposal of a TEM to TE01 mode convertor for a microwave nondestructive inspection of axial flaws appearing on the inner surface of a pipe with an arbitrary diameter International-presentation

    Takuya Katagiri, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    The 18th International Symposium on Applied Electromagnetics and Mechanics　2017/09/03

  107. 低周波渦電流探傷法による磁性配管減肉検査における影響因子評価

    宋海成, 田島直樹, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会保守管理部門ミニシンポジウム　2017/08/29

  108. マイクロ波を用いた配管広域一括探傷技術のエルボ付配管への適用性評価

    魚下昇也, 佐々木幸太, 片桐拓也, 遊佐訓孝, 橋爪秀利

    日本保全学会第14回学術講演会　2017/08/02

  109. マイクロ波を用いた配管広域一括検査技術の開発

    橋爪秀利, 遊佐訓孝, 佐々木幸太, 片桐拓也

    日本保全学会第14回学術講演会　2017/08/02

  110. Development of electromagnetic nondestructive testing for inspecting mechanical lap joint of high-temperature superconducting tapes International-presentation

    Weixi Chen, Noritaka Yusa, Satoshi Ito, Hidetoshi Hashizume

    Far East NDT/E2017　2017/06/22

  111. マイクロ波を用いた配管内壁面開口割れの検出と評価

    片桐拓也, 佐々木幸太, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会東北支部講演会　2017/04/21

  112. Flinak溶融塩精製のための一方向凝固法適用性評価

    宍戸 博紀, 小野寺 敏幸, 人見 啓太朗, 遊佐 訓孝, 橋爪 秀利

    日本原子力学会2017春の年会　2017/03/27

  113. 核融合炉の導入による放射性廃棄物低減シナリオの提案

    古館 佑樹, 宍戸 博紀, 遊佐 訓孝, 橋爪 秀利

    日本原子力学会2017春の年会　2017/03/27

  114. 二重管内の減肉検出のための TEM モード発振によるマイクロ波探傷法の適用性評価

    片桐拓也, 佐々木幸太, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会平成28年度秋季講演大会　2016/10/06

  115. 擬似2色X線CTを用いた高温超伝導線材の機械的ラップジョイントの接合不良部の分析

    陳 偉熙, 遊佐訓孝, 伊藤悟, 橋爪秀利

    日本非破壊検査協会平成28年度秋季講演大会　2016/10/06

  116. The application of 3D printing technology to fabricate an imitative crack for electromagnetic NDT&E studies International-presentation

    Noritaka Yusa, Weixi Chen, Hidetoshi Hashizume

    21st International Workshop on Electromagnetic Nondestructive Evaluation　2016/09/25

  117. Low frequency eddy current testing to measure thickness of double layer plates made of nonmagnetic steel International-presentation

    Naoki Tajima, Noritaka Yusa, Hidetoshi Hashizume

    21st International Workshop on Electromagnetic Nondestructive Evaluation　2016/09/25

  118. Non-destructive testing using microwave in te mode for detecting axial cracks in a metal pipe International-presentation

    Takuya Katagiri, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    21st International Workshop on Electromagnetic Nondestructive Evaluation　2016/09/25

  119. Evaluating the detectability of direct current potential drop method with the aid of probability of detection International-presentation

    Noritaka Yusa, Hidetoshi Hashizume

    7th International Conference on Electromagnetic Field Problems and Applications　2016/09/18

  120. Thermal Design Investigation for a Flinabe Blanket System International-presentation

    Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume, Yoshiki Ishii, Norikazu Ohtori

    The 22nd Topical Meeting on the Technology of Fusion Engineering　2016/08/21

  121. Scenario Construction of MA Transmutation in Japan Using Fusion Reactor International-presentation

    Yuki Furudate, Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume

    The 22nd Topical Meeting on the Technology of Fusion Engineering　2016/08/21

  122. Probability of detection model for the non-destructive inspection of steam generator tubes of PWRs International-presentation

    Noritaka Yusa

    International Nuclear Science and Technology Conference,　2016/08/04

  123. 磁性配管減肉モニタリングのための低周波漏洩磁束探傷法の開発

    田島直樹, 遊佐訓孝, 橋爪秀利

    日本保全学会第13回学術講演会　2016/07/25

  124. 14 MeV中性子の有効利用による核融合炉の導入シナリオ

    橋爪秀利, 遊佐訓孝, 宍戸博紀, 古館佑樹

    第１１回核融合エネルギー連合講演会　2016/07/14

  125. Detecting bolt loosening on the basis of vibration signals as low as a few hertz International-presentation

    Noritaka Yusa, Sakuo Sawada

    19th World Conference on Non-destructive Testing　2016/06/13

  126. Modeling of TE mode transducer for nondestructive testing of defects inside a metal pipe using microwave, International-presentation

    Kota Sasaki, Takuya Katagiri, Noritaka Yusa, Hidetoshi Hashizume

    19th World Conference on Non-destructive Testing　2016/06/13

  127. 配管内軸方向き裂探傷のためのTEモード発振によるマイクロ波探傷法の高度化

    片桐拓也, 佐々木幸太, 遊佐訓孝, 橋爪秀利

    電磁力関連のダイナミクスシンポジウム　2016/05/18

  128. マイクロ波を用いた配管内軸方向割れ探傷におけるTEモード発振のための入射部構造の検討

    片桐拓也, 佐々木幸太, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会東北支部学術講演会　2016/04/22

  129. 低周波振動に基づくボルト緩み検出技術の開発

    遊佐訓孝, 沢田作雄

    日本原子力学会2016年春の年会　2016/03/26

  130. 放射性廃棄物の核変換処理を目的とした核融合炉溶融塩ブランケット成立性検討（1）MAの燃焼解析に基づく核的性能評価

    古館佑樹, 宍戸博紀, 遊佐訓孝, 橋爪秀利

    日本原子力学会2016年春の年会　2016/03/26

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    古館佑樹、宍戸博紀、遊佐訓孝、橋爪秀利

  131. 放射性廃棄物の核変換処理を目的とした核融合炉溶融塩ブランケット成立性検討（2）分子動力学法を用いたFlinabeの熱物性評価

    宍戸博紀, 古館佑樹, 遊佐訓孝, 橋爪秀利, 石井良樹, 大鳥 範和

    日本原子力学会2016年春の年会　2016/03/26

  132. 分割型高温超伝導マグネットの接合/冷却技術の研究進展（4）X線CTによる接合状態の分析

    陳偉熙, 遊佐訓孝, 伊藤悟, 橋爪秀利

    日本原子力学会2016年春の年会　2016/03/26

  133. 低周波磁場計測による炭素鋼配管の減肉モニタリング手法の開発

    田島直樹, 遊佐訓孝, 橋爪秀利

    日本原子力学会2016年春の年会　2016/03/26

  134. Ｘ線CTによる分割型高温超伝導マグネットの接合性能予測法の検討

    陳偉熙, 伊藤悟, 遊佐訓孝, 橋爪秀利

    原子力学会東北支部第39回研究交流会　2015/12/18

  135. 分割型高温超伝導マグネットが切り開く核融合炉の未来

    橋爪秀利, 伊藤悟, 遊佐訓孝

    原子力学会東北支部第39回研究交流会　2015/12/18

  136. 室温における接合部の電磁非破壊検査の基礎研究

    陳偉熙, 伊藤悟, 遊佐訓孝, 橋爪秀利

    第92回秋季低温工学・超電導学会研究発表会　2015/12/02

  137. 革新的核融合炉実現に向けた分割型高温超伝導マグネットの研究開発～高温超伝導導体の着脱可能な接合法の開発状況～

    伊藤悟, 橋爪秀利, 遊佐訓孝, 柳長門, 田村仁, 相良明男

    プラズマ核融合学会第32回年会　2015/11/24

  138. Discussion on the effects of NaF on physical properties of Flinabe in comparison to Flibe from molecular dynamics simulations International-presentation

    Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume, Yoshiki Ishii, Norikazu Ohtori

    25th International Toki Conference　2015/11/03

  139. Evaluation on the applicability of nondestructive testing using microwave to a bent pipe International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    Twelfth International Conference on Flow Dynamics　2015/10/27

  140. Improving the joint resistance by heat treatment during fabrication of a mechanical joint of high-temperature superconducting conductors International-presentation

    Tatsuki Nishio, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume

    International Conference on Magnet Technology 24　2015/10/18

  141. Development of probability of detection taking consideration of multiple inspection data International-presentation

    Noritaka Yusa, Jeremy Knopp

    The 20th International Workshop on Electromagnetic Nondestructive Evaluation　2015/09/21

  142. Simulated evaluation of eddy current thermalgraphy for inspection of joint of divertor International-presentation

    Jing Wang, Noritaka Yusa, Hidetoshi Hashizume

    The 20th International Workshop on Electromagnetic Nondestructive Evaluation　2015/09/21

  143. Low frequency magnetic field measurement to monitor pipe wall thinning using mi sensor arrays International-presentation

    Naoki Tajima, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume, Tetsuya Uchimoto, Toshiyuki Takagi, Kazuhiro Tanji

    The 20th International Workshop on Electromagnetic Nondestructive Evaluation　2015/09/21

  144. Development of the sided-incidence method in nondestructive testing using microwave for wall thinning inside a metal pipe International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    The 20th International Workshop on Electromagnetic Nondestructive Evaluation　2015/09/21

  145. Impedance measurement for predicting joint resistance of a mechanical lap joint in a high-temperature superconductor International-presentation

    Weixi Chen, Satoshi Ito, Noritaka Yusa, Hidetoshi Hashizume

    The 20th International Workshop on Electromagnetic Nondestructive Evaluation　2015/09/21

  146. Designing of a fusion blanket system using molten salt flinabe for transmutation of minor actinides International-presentation

    Hiroki Shishido, Yuki Furudate, Noritaka Yusa, Hidetoshi Hashizume

    GLOBAL2015　2015/09/20

  147. Demonstration of low-frequency vibration tests to evaluate bolt loosening International-presentation

    Noritaka Yusa, Sakuo Sawada

    The 17th International Symposium on Applied Electromagnetics and Mechanics　2015/09/15

  148. Applicability of evaluation of non-destructive testing using microwave for a crack on the inner surface of metal tubes International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    The 17th International Symposium on Applied Electromagnetics and Mechanics　2015/09/15

  149. Evaluation of neutronic performance of Flibe+LiI molten salt blanket system for MA transmutation International-presentation

    Yuki Furudate, Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume

    The 17th International Symposium on Applied Electromagnetics and Mechanics　2015/09/15

  150. Mechanical and electrical characteristics of a bridge-type mechanical lap joint of HTS stars conductors based on a joint test and x-ray inspection International-presentation

    Satoshi Ito, Noritaka Yusa, Nagato Yanagi, Hiroshi Tamura, Akio Sagara, Hidetoshi Hashizume

    HTS4Fusion Conductor Workshop　2015/09/11

  151. マイクロ波を用いたクラックレーダーにおける入射部構造の最適化

    Bytniewski Grzegorz, 佐々木幸太, 遊佐訓孝, 橋爪先生

    日本保全学会第12回学術講演会　2015/07/13

  152. 極低周波渦電流探傷法の配管減肉モニタリングへの適用性評価

    田島直樹, 佐々木幸太, 遊佐訓孝, 橋爪秀利

    第２０回動力・エネルギー技術シンポジウム　2015/06/18

  153. Analysis on Propagation Losses inside a Metal Pipe in Nondestructive Testing Using Microwave for Wall Thinning International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    XVIII International Symposium on Theoretical Electrical Engineering (ISTET’15)　2015/06/07

  154. 分割型高温超伝導マグネットの接合性能予測手法と接合部製作法の改善

    伊藤悟, 清野祐太郎, 西尾樹, 陳偉熙, 遊佐訓孝, 橋爪秀利, 小黒英俊

    低温工学超電導学会　2015/05/27

  155. 配管減肉に対するマイクロ波探傷法における減肉検出可能性の軸方向位置依存性評価

    佐々木幸太, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会東北支部学術講演会　2015/04/17

  156. 配管減肉モニタリングへの極低周波渦電流探傷法の適用性

    田島直樹, 佐々木幸太, 遊佐訓孝, 橋爪秀利

    日本非破壊検査協会東北支部学術講演会　2015/04/17

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    日本非破壊検査協会奨励賞受賞

  157. 複数きずパラメータを考慮したＰＯＤモデルの開発

    遊佐訓孝, 橋爪秀利

    日本原子力学会2015春の年会　2015/03/20

  158. 核変換を目的とした新型溶融塩ブランケットの核的性能に対するペブルの影響評価

    古館佑樹, 宍戸博紀, 遊佐訓孝, 橋爪秀利

    日本原子力学会2015春の年会　2015/03/20

  159. 分割型高温超伝導マグネットの接合性能予測手法の高度化-電磁非破壊検査による接合性能予測

    陳偉熙, 伊藤悟, 遊佐訓孝, 橋爪秀利

    日本原子力学会2015春の年会　2015/03/20

  160. 原子炉の安全性の理解を目的としたPCシミュレータを用いた大学院教育の試み

    高橋信, 遊佐訓孝, 橋爪秀利

    日本原子力学会2015春の年会　2015/03/20

  161. Evaluation of physical properties of molten salt mixture Flinabe for a fusion blanket system using molecular dynamics simulation International-presentation

    Hiroki Shishido, Noritaka Yusa, Hidetoshi Hashizume, Yoshiki Ishiii, Norikazu Ohtori

    21st Topical Meeting on the Technology of Fusion Energy　2014/11/09

  162. Numerical investigation of the ill-posedness of inverse problems to size a crack from eddy current signals International-presentation

    Noritaka Yusa, Hiroki Shishido, Hidetoshi Hashizume

    The 2nd International Conference on Maintenance Science and Technology　2014/11/02

  163. Evaluation of the Applicability of Efficient Nondestructive Testing Using Microwave for Wall Thinning Inside a Long-range Metal Pipe International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    The 2nd International Conference on Maintenance Science and Technology　2014/11/02

  164. Development on Microwave Nondestructive Testing of a Wall Thinning inside a Pipe by Optimizing the Frequency Range of Incident Microwaves

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    Eleventh International Conference on Flow Dynamics　2014/10/08

  165. Advanced Machine learning Algorithm Application for Rotating Machine Health Monitoring International-presentation

    Shigeru Kanemoto, Masaya Watanabe, Noritaka Yusa

    International Symposium on Future I&C for Nuclear Power Plants 2014/International Symposium on Symbiotic Nuclear Power Systems 2014　2014/08/24

  166. 長尺配管内壁面広域一括探傷のためのマイクロ波探傷法の開発

    橋爪秀利, 佐々木幸太, 遊佐訓孝

    日本保全学会第11回学術講演会　2014/07/23

  167. Evaluating the Ill-Posedness of inverse problem to size flaws from eddy current NDT signals obtained with an absolute type probe International-presentation

    Noritaka Yusa, Hiroki Shishido, Hidetoshi Hashizume

    International Conference on Mechanical and Electrical Technology　2014/07/17

  168. FLiNaBe溶融塩ブランケットシステムにおける核転換解析

    宍戸博紀, 古館祐樹, 遊佐訓孝, 橋爪秀利

    第１９回動力・エネルギー技術シンポジウム　2014/06/26

  169. Development of electromagnetic non-destructive testing method for the inspection of heat exchanger tubes of Japan Sodium-Cooled Fast Reactor –Part I Application of remote field eddy current testing International-presentation

    Noritaka Yusa, Hiroki Shishido, Hidetoshi Hashizume

    The 19th International Workshop on Electromagnetic Nondestructive Evaluation　2014/06/25

  170. Development of electromagnetic non-destructive testing method for the inspection of heat exchanger tubes of Japan Sodium-Cooled Fast Reactor –Part II Detection of flaws on the inner surface using electromagnetic waves International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    The 19th International Workshop on Electromagnetic Nondestructive Evaluation　2014/06/25

  171. Numerical modeling of thermal fatigue crack from viewpoint of eddy current testing International-presentation

    Jing Wang, Noritaka Yusa, Mika Kemppainen, Iikka Virkkunen, Hidetoshi Hashizume

    The 19th International Workshop on Electromagnetic Nondestructive Evaluation　2014/06/25

  172. A round-robin project in Japan for the evaluation of nondestructive responses of natural flaws International-presentation

    Noritaka Yusa, Jing Wang, Iikka Virkkunnen

    International Conference on Energy, Environment and Sustainable Economy　2013/12/01

  173. Numerical evaluation of the effect of the mode of microwave propagating inside a pipe on the detectability of a microwave nondestructive testing method International-presentation

    Noritaka Yusa, Kota Sasaki, Hidetoshi Hashizume

    Tenth International Conference on Flow Dynamics　2013/11/25

  174. xperimental evaluation of the applicability of a sided-incidence microwave probe for a microwave nondestructive testing method International-presentation

    Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    Tenth International Conference on Flow Dynamics　2013/11/25

  175. Diversity and integration of rotating machine health monitoring methods International-presentation

    Shigeru Kanemoto, Norihiko Yokotsuka, Noritaka Yusa, Masahiko Kawabata

    2013 Prognostics and System Health Management Conference PHM-2013　2013/09/08

  176. 新型溶融塩ブランケットの核的性能評価 1.TBR評価

    宍戸博紀, 遊佐訓孝, 橋爪秀利

    日本原子力学会2013秋の大会　2013/09/03

  177. 新型溶融塩ブランケットの核的性能評価 2.核転換解析

    宍戸博紀, 遊佐訓孝, 橋爪秀利

    日本原子力学会2013秋の大会　2013/09/03

  178. Proposal of a novel blanket system using LiF-BeF2-LiI for a fusion reactor International-presentation

    Hiroki Shishido, Yongming Han, Kentaro Matsui, Noritaka Yusa, Hidetoshi Hashizume

    21st International Conference on Nuclear Engineering　2013/07/29

  179. Modeling of thermal fatigue crack for enhancement of electromagnetic nondestructive evaluation of nuclear power plant International-presentation

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    21st International Conference on Nuclear Engineering　2013/07/29

  180. 熱疲労割れ破面の電気的接触度評価

    遊佐訓孝, 橋爪秀利, 王晶, Iikka Virkkunen, Mika Kemppainen

    日本保全学会第１０回学術講演会　2013/07/24

  181. 疲労割れの非破壊検査性能向上に必要な重要課題の抽出

    高木敏行, 青木孝行, 古村一朗, 古川敬, 遊佐訓孝, 浦山良一

    日本保全学会第１０回学術講演会　2013/07/24

  182. Numerical modeling of real cracks for electromagnetic nondestructive inverse problems International-presentation

    Noritaka Yusa

    The 18th International Workshop on Electromagnetic Nondestructive Evaluation　2013/06/25

  183. A novel side-incidence probe with numerically optimized parameters for online microwave remote NDE of pipe wall thinning International-presentation

    Kota Sasaki, Linsheng Liu, Noritaka Yusa, Hidetoshi Hashizume

    The 18th International Workshop on Electromagnetic Nondestructive Evaluation　2013/06/25

  184. LiF-BeF2-LiI溶融塩を用いた核融合炉ブランケットの熱的設計

    宍戸博紀, 遊佐訓孝, 橋爪秀利

    第５０回伝熱シンポジウム　2013/05/29

  185. きず進展モニタリング用アレイ化一様渦電流プローブの開発

    遊佐訓孝, 内一哲哉, 高木敏行, 橋爪秀利, 佐藤公仁弘

    日本原子力学会2013春の年会　2013/03/26

  186. PIRT手法を用いた超音波探傷検査及び渦電流探傷検査の検査精度向上に必要な研究課題の抽出

    青木孝行, 高木敏行, 古村一朗, 古川敬, 遊佐訓孝, 浦山良一

    SCI'13第57回システム制御情報学会研究発表講演会　2013/03/26

  187. Microwave NDT method used for remote detection and inversion of edge profiles of wall thinning defects inside a metal pipe

    日本原子力学会・東北支部会第36回研究発表会　2012/12/07

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    Linsheng Liu, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

  188. 新型溶融塩ブランケットTBR評価における断面積ライブラリの影響

    日本原子力学会・東北支部会第36回研究発表会　2012/12/07

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    宍戸博紀, 遊佐訓孝, 橋爪秀利

  189. Microwave NDT method utilized for remote distinction of biofouling and wall thinning defects inside a metal pipe International-presentation

    第21回MAGDAコンファレンスin仙台　2012/11/21

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    Linsheng Liu, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

  190. Development on microwave nondestructive testing of a wall thinning inside a pipe by optimizing microwave probe and analyzing wall thinning profile International-presentation

    Kota Sasaki, Linsheng Liu, Noritaka Yusa, Takashi Wakai, Hidetoshi Hashizume

    1st International Conference on Maintenance Science and Technology Tokyo 2012　2012/11/11

  191. Fabrication of an artificial flaw with an arbitrary profile and non-destructive response for the development of NDT&E techniques International-presentation

    Noritaka Yusa, Kota Sasaki, Hidetoshi Hashizume

    1st International Conference on Maintenance Science and Technology Tokyo 2012　2012/11/11

  192. A study on the distribution of electric conductivity around a stress corrosion crack International-presentation

    1st International Conference on Maintenance Science and Technology Tokyo 2012　2012/11/11

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    Zhenmao Chen, Taihuk Huang, Li Wang, Noritaka, Yusa

  193. Effect of shape of shield on the sensitivity of remote field eddy current testing for inspecting flaw of large diameter tube International-presentation

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    Ninth International Conference on Flow Dynamics (ICFD2012)　2012/09/19

  194. A novel approach of microwaves on remote and nondestructive detection of both gradual and abrupt wall thinning inside a metal pipe International-presentation

    Linsheng Liu, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    Ninth International Conference on Flow Dynamics (ICFD2012)　2012/09/19

  195. 強度変調複合電磁場を用いた渦電流探傷法による鉄鋼材料表面きず深さ評価

    遊佐訓孝, 橋爪秀利

    日本鉄鋼協会第１６５回秋季講演大会　2012/09/17

  196. Application of microwaves on remote and nondestructive testing of both biofouling and wall thinning inside a metal pipe

    Linsheng Liu, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

    日本保全学会第９回学術講演会　2012/07/25

  197. Investigation on electromagnetic characteristics of modeling thermal fatigue cracks in numerical simulation by eddy current testing

    王晶, 遊佐訓孝, 藩紅良, 橋爪秀利, Mika Kemppainen, Iikka Virkkunen

    日本保全学会第９回学術講演会　2012/07/25

  198. 熱疲労割れの直流電位差法による測定及び分析

    遊佐訓孝, 王晶, 藩紅良, 橋爪秀利, Mika Kemppainen, Iikka Virkkunen

    日本保全学会第９回学術講演会　2012/07/25

  199. 配管減肉に対するマイクロ波探傷法の口径依存性評価

    佐々木幸太, 遊佐訓孝, 橋爪秀利

    第17回動力・エネルギー技術シンポジウム　2012/06/21

  200. Discussion on distributed conductivity for modeling stress corrosion crack in eddy current testing International-presentation

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    The Sixth International Conference on Electromagnetic Field Problems and Applications　2012/06/19

  201. マイクロ波探傷法の管径に対する適用性評価

    佐々木幸太, 遊佐訓孝, 橋爪秀利

    日本原子力学会2012春の大会　2012/03/19

  202. Finite element modeling of stress corrosion cracking for electromagnetic nondestructive evaluations International-presentation

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    The 18th Pacific Basin Nuclear Conference (PBNC2012)　2012/03/18

  203. 平板裏面欠陥探傷に対するリモートフィールド渦電流探傷法と低周波渦電流探傷法の比較検討

    王晶, 遊佐訓孝, 潘红良, 橋爪秀利

    日本非破壊検査協会第15回磁粉・浸透・目視部門・電磁気応用部門・漏れ試験部門合同シンポジウム「表面探傷技術による健全性診断」　2012/02/20

  204. 積層薄膜の固相接合による模擬応力腐食割れ試験体製作技術の開発

    遊佐訓孝, 橋爪秀利

    平成23年度日本設備管理学会秋季研究発表大会第３回検査・評価・保全に関する連携講演会　2011/12/15

  205. 新型溶融塩CsF-LiF-BeF2を用いた核融合炉ブランケットの性能評価

    松井謙太郎, Han Yongmin, 遊佐訓孝, 小宮山大輔, 鈴木昌大, 橋爪秀利

    原子力学会東北支部研究交流会　2011/12/09

  206. Investigation of application of remote field eddy current testing for inspecting flaws in large diameter tubes from outside International-presentation

    Jing Wang, Noritaka Yusa, Hongliang Pan, Hidetoshi Hashizume

    Eighth International Conference on Flow Dynamics　2011/11/09

  207. Evaluation of advanced Flibe blanket using Cs International-presentation

    Kentaro Matsui, Noritaka Yusa, Daisuke Komiyama, Akihiro Suzuki, Hidetoshi Hashizume

    The 10th International Symposium on Fusion Nuclear Technology　2011/09/11

  208. Improvement of crack radar system to detect flaws in pipes International-presentation

    Hidetoshi Hashizume, Noritaka Yusa, Yasutomo Sakai

    The 15th International Symposium on Applied Electromagnetics and Mechanics　2011/09/06

  209. Fabrication of imitative stress corrosion cracking specimen using lithography and solid state bonding International-presentation

    Noritaka Yusa, Hidetoshi Hashizume

    The 15th International Symposium on Applied Electromagnetics and Mechanics　2011/09/06

  210. 分散補償法によるクラックレーダーの高性能化

    橋爪秀利, 遊佐訓孝, 酒井康智

    第６回動力・エネルギーシンポジウム　2011/06/23

  211. 拡散接合を用いた非破壊検査技術用模擬応力腐食割れ製作技術の開発

    遊佐訓孝, 橋爪秀利

    第６回動力・エネルギーシンポジウム　2011/06/23

  212. Practical numerical modeling for electromagnetic nondestructive testing and evaluations International-presentation

    2011 Far-East NDT Forum　2011/05/31

  213. 高周波探傷と深部情報抽出能を両立させる新型渦電流探傷プローブの開発

    橋爪秀利

    日本非破壊検査協会平成23年度春季講演大会　2011/05/26

  214. Thermonuclear analysis of Flibe blanket with Cs International-presentation

    Hidetoshi Hashizume, Noritaka Yusa, Kentaro Matsui

    ANS 19th Topical Meeting on the Technology of Fusion Energy (TOFE-19)　2010/11/07

  215. The effects of wall thinning shapes on microwave testing for piping International-presentation

    Yasutomo Sakai, Noritaka Yusa, Hidetoshi Hashizume

    7th International Conference on Flow Dynamics (ICFD2010)　2010/11/01

  216. Transmutation process of 90Sr with 14 MeV neutron by nuclear fusion International-presentation

    Kentaro Matsui, Noritaka Yusa, Hidetoshi Hashizume

    Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo 2010 (SNA+MC2010)　2010/10/17

  217. 固相接合を用いた電磁非破壊検査のための模擬応力腐食割れ試験体製作

    遊佐訓孝, 内一哲哉, 高木敏行, 橋爪秀利

    第７回保全学会学術講演会　2010/07/13

  218. マイクロ波を用いた配管減肉の検出とサイジング

    酒井康知, 遊佐訓孝, 橋爪秀利

    第７回保全学会学術講演会　2010/07/13

  219. 渦電流探傷試験による応力腐食割れの深さサイジングに対するき裂分岐構造と充填酸化物の影響評価

    大瀧啓太郎, 内一哲哉, 高木敏行, 遊佐訓孝, 竹田陽一

    第７回保全学会学術講演会　2010/07/13

  220. Evaluation of microwave in pipes for inspection International-presentation

    Yasutomo Sakai, Noritaka Yusa, Satoshi Ito, Hidetoshi Hashizume

    The 15th International Workshop on Electromagnetic Nondestructive Evaluation　2010/06/13

  221. Fabrication of imitative stress corrosion cracking specimens for electric nondestructive evaluations International-presentation

    The 15th International Workshop on Electromagnetic Nondestructive Evaluation　2010/06/13

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    Noritaka Yusa, Tetsuya Uchimoto, Toshiyuki Takagi, Hidetoshi Hashizume

  222. Investigation of the features of the electric conductivity around a stress corrosion crack International-presentation

    Zhenmao Chen, Taihui Hwang, Li Wang, Shuxia Tian, Noritaka Yusa

    The 15th International Workshop on Electromagnetic Nondestructive Evaluation　2010/06/13

  223. 核融合14MeV中性子による高レベル放射性廃棄物処理

    松井謙太郎, 遊佐訓孝, 橋爪秀利

    日本原子力学会2010年春の年会　2010/03/26

  224. Numerical analysis of microwave NDT applied to piping inspection International-presentation

    Yasutomo Sakai, Noritaka Yusa, Satoshi Ito, Hidetoshi Hashizume

    The 13th Asia-Pacific Conference on Non-destructive Testing　2009/11/08

  225. A project aiming at the enhancement of NDT&E of stress corrosion cracking International-presentation

    The 14th International Symposium on Applied Electromagnetics and Mechanics　2009/09/20

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    Noritaka Yusa, Kenzo Miya, Ichiro Komura, Zhenmao Chen

  226. Numerical analysis of an electromagnetic nondestructive evaluation method for rotating machinery International-presentation

    The 14th International Symposium on Applied Electromagnetics and Mechanics　2009/09/20

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    Haoyu Huang, Ryo Kayata, Stephane Perrin, Noritaka Yusa, Kenzo Miya

  227. 電流制御型渦電流探傷法による応力腐食割れサイジングの試み

    瀬良健彦, 平野伸朗

    日本原子力学会2009年秋の大会　2009/09/16

  228. ポンプ軸受およびインペラの不具合の大きさと電磁診断技術の信号との相関関係

    萱田良, 真木紘一, 石川達也, 堀内隆夫

    第6回日本保全学会学術講演会　2009/08/03

  229. 渦電流に対する応力腐食割れの等価的抵抗値に関する検討

    橋爪秀利

    第6回日本保全学会学術講演会　2009/08/03

  230. A novel electromagnetic nondestructive evaluation method for rotating machinery International-presentation

    Haoyu Huang, Ryo Kayata, Stephane Perrin, Koh-ichi Maki, Shingo Mawatari, Noritaka Yusa, Kenzo Miya

    The 7th International Conference in relation to Structural Integrity for Nuclear and Pressurized Components　2009/05/12

  231. Pixe analysis of platinum-containing DDS drugs International-presentation

    Kazue Mizuno, Azusa Mori, Noritaka Yusa, Teruaki Konishi, Tsuyoshi Hamano, Takahiro Ishikawa, Hiroyuki Iso, Takamitsu Kato, Ryuichi Okayasu, Hitoshi Imaseki, Mitsuru Uesaka

    the 8th Asia-Oceania Congress of Medical Physics (AOCMP) and 6th Southeast Asian Congress of Medical Physics　2008/10/30

  232. High precision 3D atomic number detection by dual energy CT using Compton scattering monochromatic X-ray source International-presentation

    Hiroki Taguchi, Noritaka Yusa, Akira Sakumi, Fumito Sakamoto, Eiko Hashimoto, Tomohiko Yamamoto, Takuya Natsui, Yoshihiro Taniguchi, Mitsuru Uesaka

    The 16th Pacific Basin Nuclear Conference　2008/10/13

  233. Medical application of dual-energy X-ray CT using Compton scattering monochromatic X-ray source International-presentation

    Hiroki Taguchi, Noritaka Yusa, Akira Sakumi, Fumito Sakamoto, Eiko Hashimoto, Tomohiko Yamamoto, Takuya Natsui, Yoshihiro Taniguchi, Mitsuru Uesaka

    The 5th Korea-Japan Joint Meeting on Medical Physics in conjunction with 37th Meeting of Korean Society of Medical Physics and 96th Meeting of Japan Society of Medical Physics　2008/09/10

  234. 電流制御型リモートフィールド渦電流探傷法の検討

    遊佐訓孝, 宮健三

    第５回保全学会学術講演会　2008/07/10

  235. オンサイト非破壊検査用可搬型950keV XバンドライナックX線源

    夏井拓也, 山本智彦, 坂本文人, 谷口善洋, 田口博基, 遊佐訓孝, 上坂充, 肥後寿泰, 福田茂樹, 明本光生, 吉田光宏, 山本昌志, 中村直樹, 田辺英二, 森田成基

    第５回保全学会学術講演会　2008/07/10

  236. 電磁診断技術による異物混入ベアリングの挙動測定

    萱田良, 黄皓宇, 遊佐訓孝

    第５回保全学会学術講演会　2008/07/10

  237. DNA damage induced by colloidal gold or its combined effect with X-rays International-presentation

    Azusa Mori, Takamitsu Kato, Kazue Mizuno, Noritaka Yusa, Ryuichi Okayasu, Mitsuru Uesaka

    the International Workshop on Radiation Damage to DNA　2008/06/08

  238. 治療型Ｘ線ＤＤＳのＰＩＸＥ分析

    水野和恵, 森梓, 遊佐訓孝, 小西輝昭, 濱野毅, 石川剛弘, 磯浩之, 加藤宝光, 岡安隆一, 今関等, 上坂充

    第95回医学物理学会　2008/04/05

  239. コンプトン散乱単色Ｘ線源を用いた２色Ｘ線ＣＴの解析

    田口博基, 遊佐訓孝, 作美明, 上坂充

    第95回医学物理学会　2008/04/05

  240. A novel approach to enhance the sizing ability of AC-based electromagnetic nondestructive testing methods International-presentation

    Noritaka Yusa, Kenzo Miya, Ladislav Janousek

    6th International Conference on NDE in relation to Structural Integrity for Nuclear and Pressurized Components　2007/10/08

  241. 薬物送達システム（DDS)材料と放射線間接効果

    水野和恵, 姜美玲, 上坂充, 遊佐訓孝, 作美明, 室屋祐佐, 西山伸宏, 片岡一則, 岡安隆一, 加藤宝光

    原子力学会2007年秋の大会　2007/09/27

  242. モンテカルロシミュレーションによるTBMとCBMのベストミックスの検討

    凌元錦, 遊佐訓孝, 真木紘一, 清水高

    日本原子力学会2007年秋の大会　2007/09/27

  243. リスク情報を活用した配管最適設計手法の開発

    凌元錦, 遊佐訓孝, 真木紘一, 宮健三, 肥田隆彦

    日本機械学会Dynamics & Design Conference 2007　2007/09/25

  244. Diagnosis of damages of wings of rotor by electromagnetic field measurement International-presentation

    Kazuyuki Demachi, Noritaka Yusa, Selgay Rybalko

    The 13th International Symposium on Applied Electromagnetics and Mechanics　2007/09/09

  245. Eddy current testing system for in situ automatic discrimination of fatigue and stress corrosion cracks International-presentation

    Stephane Perrin, Noritaka Yusa, Kenzo Miya, Daniela Grambarska, Ladislav Janousek

    The 13th International Symposium on Applied Electromagnetics and Mechanics　2007/09/09

  246. Electromagnetic nondestructive evaluation of rotating blades International-presentation

    Daigo Kosaka, Haoyu Huang, Noritaka Yusa, Kenzo Miya

    The 13th International Symposium on Applied Electromagnetics and Mechanics　2007/09/09

  247. X-ray DDS (Drug Delivery System) for dynamic imaging for cancer radiation therapy by using colloidal gold International-presentation

    Jiang Meiling, Kazue Mizuno, Mitsuru Uesaka, Fumito Sakamoto, Noritaka Yusa, Nobuhiro Nishiyama, Kazunori Kataoka, Keiichi Nakagawa

    The Seventh Asia-Oceania Congress on Medical Physics and The Thirteenth National Annual Meeting of Medical Physics　2007/08/23

  248. 回転機器の電磁非破壊評価手法の検討

    小坂大吾, 黄皓宇, 遊佐訓孝

    日本保全学会第４回学術講演会　2007/07/02

  249. モンテカルロシミュレーションによる配管減肉モニタリングの有効性評価

    凌元錦, 遊佐訓孝, 真木紘一, 宮健三, 田川明広

    日本保全学会第４回学術講演会　2007/07/02

  250. オンサイト非破壊検査評価用可搬型950keVXバンドライナックの開発

    山本智彦, 夏井拓也, 坂本文人, 遊佐訓孝, 作美明, 上坂充, 肥後寿泰, 福田茂樹, 明本光生, 吉田光宏, 中村直樹, 田辺英二, 森田成基, 山本昌志

    日本保全学会第４回学術講演会　2007/07/02

  251. Advanced probe with array of pick-up coils for improved crack evaluation in eddy-current non-destructive testing International-presentation

    Ladislav Janousek, Klara Capova, Noritaka Yusa, Kenzo Miya

    The 12th International Workshop on Electromagnetic Nondestructive Evaluation　2007/06/19

  252. A start of new field of electromagnetic and mechanical maintenance engineering International-presentation

    Kenzo Miya, Noritaka Yusa

    The 12th International Workshop on Electromagnetic Nondestructive Evaluation　2007/06/19

  253. 可搬型950ｋｅＶXバンドライナックX線源の開発と非破壊検査応用

    上坂充, 山本智彦, 夏井拓也, 土橋克広, 遊佐訓孝, 田辺英二, 森田成基

    日本非破壊検査協会平成19年度春季講演大会　2007/05/22

  254. 電磁現象を利用した応力腐食割れと疲労割れの非破壊的識別

    遊佐訓孝, 宮健三, ステファンペラン

    日本非破壊検査協会平成19年度春季講演大会　2007/05/22

  255. Ｘ線ドラッグデリバリシステムの造影効果に関する基礎研究

    水野和恵, 姜美玲, 上坂充, 作美明, 遊佐訓孝, 岡安隆一, 加藤宝光

    日本医学物理学会第93回学術大会　2007/04/13

  256. Ｘ線ドラッグデリバリシステムの造影効果に関する基礎研究

    姜美玲, 水野和恵, 上坂充, 坂本文人, 土橋克弘, 遊佐訓孝, 高橋浩之, 西山伸宏, 片岡一則, 中川恵一

    日本医学物理学会第93回学術大会　2007/04/13

  257. X線Drug Delivery Systemに関する基礎研究

    水野和恵, 姜美玲, 上坂充, 作美明, 遊佐訓孝, 岡安隆一, 加藤宝光

    日本原子力学会2007年春の年会　2007/03/27

  258. 回転体異常の電磁検出

    黄皓宇, 宮健三, 遊佐訓孝, 小阪大吾

    日本非破壊検査協会第10回表面探傷シンポジウム　2007/01/25

  259. 導体内部の交流電流分布の線形性を利用したきず深さ定量評価能向上の試み

    ラディスラブヤノーセック, 遊佐訓孝, 宮健三

    日本非破壊検査協会第10回表面探傷シンポジウム　2007/01/25

  260. Numerical investigation of the ill-posedness of eddy current inversion problems. International-presentation

    Noritaka Yusa, Kenzo Miya

    The 9th Workshop on Optimization and Inverse Problems in Electromagnetism　2006/09/13

  261. 電磁現象を用いた応力腐食割れと疲労割れの非破壊的識別

    ステファンペラン, 遊佐訓孝, 宮健三

    日本保全学会第３回学術講演会　2006/07/06

  262. Discrimination between stress corrosion and fatigue cracks using differential plus-point probe in the frame of eddy current testing International-presentation

    Stephane Perrin, Noritaka Yusa, Kenzo Miya

    the 5th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components　2006/05/10

  263. 導体内部交流電流分布制御による傷深さ定量評価能向上の試み

    遊佐訓孝, Ladislav Janousek, 宮健三

    日本非破壊検査協会第９回表面探傷シンポジウム　2006/02/02

  264. 確率論的手法によるステンレス鋼溶接部に対する渦電流探傷プローブの性能比較

    冨澤拓真, 宋海成, 遊佐訓孝

    第44回日本原子力学会東北支部研究交流会　2020/12/14

  265. Comparison study on ECT SNR improvement using AC and DC magnetization

    2020/06/03

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Industrial Property Rights 1

  1. 模擬応力腐食割れ試験体及びその製造方法

    遊佐訓孝, 内一哲哉, 高木敏行, 橋爪秀利

    特許第5392779号

    Property Type: Patent

Research Projects 11

  1. Development of 4-phase continuous diverter system by MHD controlling

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2021/04/05 - 2026/03/31

  2. Three-dimensional profile reconstruction of a natural SCC colony through electromagnetic NDT methods

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for JSPS Fellows

    Institution: Tohoku University

    2019/07/24 - 2022/03/31

  3. Development of oxidation-resistant, high-strength W film formation methodology using additive manufacturing technologies and friction stir processing

    Tanigawa Hiroyasu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: National Institutes for Quantum and Radiological Science and Technology

    2017/04/01 - 2021/03/31

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    In order to develop a high strength W coating with oxidation resistance by passive film formation, we tried to form a strengthen W composite coating by friction stir processing (FSP). The result indicated that Cr can be mixed into the surface of VPS-W by filling the grooves or surface cracks of VPS-W coating with Cr carbide powder. In the exploration of W alloy film formation by 3D printing technology, W film formation by the Selective Laser Melting method (SLM method) was attempted, but it was confirmed that it was difficult to suppress the interfacial reaction in the first layer. Thus, we tried W lamination with suppressed oxidation by plasma spraying as a pretreatment, and obtained promising results of W lamination with suppressed oxidation by using Cu as a bond layer and Ar/H2 gas as the plasma gas.

  4. Proposal of the innovative fusion reactor for nuclear transmutation by the utilization of a super fast neutron and the high-level radioactive waste

    Hashizume Hidetoshi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Pioneering)

    Institution: Tohoku University

    2017/06/30 - 2020/03/31

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    We have proposed a completely new concept of a fusion reactor that combines ultra-high-energy 14 MeV neutrons generated by fusion reactions with high-level waste (fission products and minor actinides) contained in spent nuclear fuel produced by nuclear power plants. We have performed designing of the minor actinide fuel and transmutation system, and also the blanket including the fission products transmutation system. We have indicated successful scenarios that it is possible to surely reduce the domestic storage amount of these high-level wastes by introducing the innovative fusion reactors to Japan.

  5. Remote-filed based tomographic evaluation of two-phase flows aiming at a countermeasure against a loss of coolant accidents

    Yusa Noritaka

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04/01 - 2019/03/31

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    This study attempted the application of remote field eddy current technique to the evaluation of two-phase flows from outside the pipe, especially for the purpose of confirming presence of coolants in the case of a loss of coolant accident. Detailed three-dimensional finite element simulations and experiments revealed, however, high frequency excitation necessary to distinguish water and air makes it difficult to realize remote field phenomena in case of pipes carrying the fluids are made from metals. Furthermore, even the pipes are made from composite materials whose electrical conductivity is much smaller than that of the metals, it was difficult to obtain tomographic images of the two-phase flows with a high spatial and time resolutions as originally expected.

  6. Demonstration of a remountable high-temperature superconducting magnet and construction of universal joints toward the realization of an innovative fusion reactor

    Hashizume Hidetoshi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (S)

    Institution: Tohoku University

    2014/05/30 - 2019/03/31

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    We established a method to predict the jointing resistance of the REBCO tapes under cryogenic temperature, strong magnetic field environment and improved heat transfer correlation for pool boiling in the metal porous media indispensable for the cooling performance prediction. In addition, we introduced joint piece and low temperature heat-treatment into the bridge-type mechanical lap joint of the 10kA conductor to succeed realizing 1/3 jointing resistance with 1/6 fabrication time. Furthermore, we performed a pinning center introduction based on a critical state model and a self-magnetic field evaluation by using proton beam irradiation to show controllability of a critical current density, which indicates the possibility of the function-divided conductor based on the superconductivity physics. According to the above results, the demountable high Tc superconducting magnet for an innovative nuclear fusion reactor is demonstrated together with the general jointing method for the magnets.

  7. 高度放射線治療のための安価・簡便・高精度なリアルタイム生体断層撮影技術の開発（国際共同研究強化）

    遊佐 訓孝

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 国際共同研究加速基金（国際共同研究強化）

    Institution: 東北大学

    2017 - 2019

  8. Development of a microwave nondestructive testing method for the long-range inspection of corrosion under insulation

    Yusa Noritaka

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2015/04/01 - 2017/03/31

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    This study aimed at the development of a nondestructive testing method using microwave for the long-range inspection of corrosions under insulations. Three-dimensional finite element simulations were conducted, whose results revealed that situating coaxial cables carrying TEM microwave circumferentially with an equal distance enables to convert TEM microwave propagating inside the coaxial cables into another TEM microwave propagating inside insulators. Subsequent experimental verifications were performed using a eight-way power divider and double pipes with artificial grooves simulating a corrosion under insulation. The experiment confirmed a clear signals due to the artificial grooves, and the time-of-flight of the signals agreed well with the actual location of the artificial grooves.

  9. Development of computational tomography using time-harmonic electromagnetic fields

    YUSA Noritaka

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2013/04/01 - 2015/03/31

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    This study attempted to develop a method to obtain the tomographic image of electromagnetic properties inside living body non-invasively using time-dependent electromagnetic fields. Three-dimensional finite element simulations were carried out to discuss the suitable structure and arrangement of transmitters and receivers. Subsequent experimental verification were conducted using a dedicated measurement system equipped with arrayed magneto-Impedance element sensors and automated PC-controlled rotational stage. Cylindrical phantoms were prepared for the experimental verification. The results of the experimental verification qualitatively agreed with the ones obtained by the three-dimensional finite element simulations.

  10. Construction and demonstration of universal joint techniques for realization of a remountable high-temperature superconducting magnet

    HASHIZUME Hidetoshi, EBARA Shinji, YUSA Noritaka, ITO Satoshi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2011/04/01 - 2014/03/31

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    We conducted this research aiming for realization of universal joint techniques to be applied to a remountable high-temperature superconducting magnet. We set three objectives in this research: 1) Establishment of universal joint techniques, 2) Optimization of cooling system using porous media and 3) Design and fabrication of a large-scale conductor and its joint. In the research of the cooling system, we confirmed that metal porous media can suppress film boiling and the fact implies that the system is suitable for the remountable magnet. In addition, we fabricated a large-scale conductor having mechanical joint section and achieved a current of 100 kA. Based on the above results, we demonstrated the concept of joint techniques and a remountable high-temperature superconducting magnet.

  11. Development of innovative non-destructive methods for the evaluation of the structural integrity using broadband electromagnetic fields

    YUSA Noritaka

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2011 - 2012

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    This study developed a method to significantly enhance the information contained in signals of non-destructive methods using time-dependent electromagnetic fields. Numerical simulations and experimental verifications were carried out to fully reveal the physical background of the method applied to kHz electromagnetic fields. They also evaluated the applicable limit of the method, and confirmed that the magnetic property of the target would enable to make probes smaller. Studies for the application to GHz electromagnetic fields demonstrated that controlling electromagnetic fields leads to a significant improvement of signal-to-noise ratio.

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