Details of the Researcher

PHOTO

Yasuyuki Ogino
Section
Institute for Materials Research
Job title
Assistant Professor

Committee Memberships 1

  • 日本原子力学会 核融合工学部会　国際学術

    2023/04 - Present

Papers 25

  1. Effect of WO3 addition on the fabrication of oxide dispersion-strengthened Cu alloys by mechanical alloying of CuYZr alloy powders

    Zimo Gao, Hao Yu, Diancheng Geng, Koji Inoue, Yasuyuki Ogino, Sosuke Kondo, Ryuta Kasada

    Nuclear Materials and Energy　2026/03

    DOI： 10.1016/j.nme.2026.102060 　

  2. Ion-mixing-induced mitigation of swelling and modulus reduction in irradiated SiC fibers

    Xinwei Yuan, Sosuke Kondo, Diancheng Geng, Kiyohiro Yabuuchi, Hao Yu, Yasuyuki Ogino, Ryuta Kasada

    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY　45　(14)　2025/11

    DOI： 10.1016/j.jeurceramsoc.2025.117563 　

    ISSN： 0955-2219

    eISSN： 1873-619X

  3. Suppression of irradiation hardening in tungsten-coated ferritic steel for fusion reactor blanket applications

    Kotaro Seki, Kenta Yoshida, Hotaka Miyata, Akira Hasegawa, Sosuke Kondo, Hao Yu, Yasuyuki Ogino, Kazuyuki Hokamoto, Shigeru Tanaka, Takaaki Koyanagi, Ryuta Kasada

    Journal of Nuclear Materials　607　155657-155657　2025/03

    Publisher: Elsevier BV

    DOI： 10.1016/j.jnucmat.2025.155657 　

    ISSN： 0022-3115

  4. Fracture behavior and grain boundary cohesion of alumina scales formed on ion-irradiated FeCrAl-ODS alloy

    Hao Yu, Diancheng Geng, Yasuyuki Ogino, Naoko Oono-Hori, Koji Inoue, Sosuke Kondo, Ryuta Kasada, Shigeharu Ukai

    JOURNAL OF NUCLEAR MATERIALS　606　2025/02

    DOI： 10.1016/j.jnucmat.2025.155663 　

    ISSN： 0022-3115

    eISSN： 1873-4820

  5. Effects of irradiation on interfacial strength and microstructure of double-layer mullite and alumina coating on SiC

    Taichi Miyagishi, Sosuke Kondo, Hirokazu Katsui, Kiyohiro Yabuuchi, Ryutaro Usukawa, Yasuyuki Ogino, Hao Yu, Ryuta Kasada

    Journal of Nuclear Materials　603　155410-155410　2025/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.jnucmat.2024.155410 　

    ISSN： 0022-3115

  6. Feasibility study on mass-production of oxide dispersion strengthened Cu alloys for the divertor of DEMO fusion reactor Peer-reviewed

    Hao Yu, Toshiki Saito, Zimo Gao, Yasuyuki Ogino, Sosuke Kondo, Ryuta Kasada, Hiroyuki Noto, Yoshimitsu Hishinuma, Suguru Matsuzaki

    Journal of Nuclear Materials　599　(155205)　2024/10

    DOI： 10.1016/J.JNUCMAT.2024.155205 　

  7. Effect of Molten Al/Si Impregnation on the Oxidation Resistance of TiB<inf>2</inf> at 1300°C

    Koki Wakatabi, Yuki Jimba, Yasuki Okuno, Sosuke Kondo, Hao Yu, Yasuyuki Ogino, Ryuta Kasada

    Materials Transactions　65　(10)　1367-1372　2024/10

    DOI： 10.2320/matertrans.MT-M2024012 　

    ISSN： 1345-9678

  8. The Role of Y2O3/Hf Co-Doping on the Microstructure and Tensile Properties of Alumina-Forming Co-Cr-Al-Ni ODS Superalloy Peer-reviewed

    Hao Yu, Sosuke Kondo, Yasuyuki Ogino, Ryuta Kasada

    Materials Transactions　65　(8)　867-875　2024/08

    DOI： 10.2320/matertrans.MT-M2024025 　

  9. Influence of the Hydrogen Isotope Affinity of the Cathode Coating Material on the Neutron Production Rate in the Glow Discharge–Type Fusion Neutron Source

    Toshiro Sakabe, Yasuyuki Ogino, Keisuke Mukai, Juro Yagi, Mahmoud Bakr

    Fusion Science and Technology　2024/07/03

    DOI： 10.1080/15361055.2023.2227821 　

  10. Lithium Isotope Enrichment Effects in Liquid Metal/Chloride Molten Salt System

    Ryo Ito, Fu Nomoto, Yasuyuki Ogino, Keisuke Mukai, Juro Yagi

    Fusion Science and Technology　2024/05/18

    DOI： 10.1080/15361055.2023.2229673 　

  11. Mechanism of enhanced room temperature ductility of cold–rolled tungsten under micro-bending test

    Xiangyu Wu, Yuki Jimba, Sosuke Kondo, Hao Yu, Yasuyuki Ogino, Akira Hasegawa, Ryuta Kasada

    Materialia　2024/03

    DOI： 10.1016/j.mtla.2023.101971 　

  12. Quenching factor measurement of low-energy Na recoils in ultra-pure NaI(Tl) crystal

    Yusuke Urano, Ken-Ichi Fushimi, Kazumi Hata, Yohei Kawai, Satoshi Konishi, Kenta Kotera, Shunsuke Kurosawa, Keisuke Mukai, Yasuyuki Ogino, Reiko Orito, Toshiro Sakabe

    Proceedings of XVIII International Conference on Topics in Astroparticle and Underground Physics — PoS(TAUP2023)　087-087　2024/02/09

    Publisher: Sissa Medialab

    DOI： 10.22323/1.441.0087 　

  13. Contribution of Y2O3/Hf co-doping to alumina scale growth on oxide dispersion strengthened Co-based superalloy Peer-reviewed

    Hao Yu, Ryuta Kasada, Koji Inoue, Sosuke Kondo, Yasuyuki Ogino, Shigeharu Ukai

    Corrosion Science　227　2024/02

    DOI： 10.1016/J.CORSCI.2023.111775 　

  14. Evaluation of Gamma‐Ray Dose Distribution in the Toroidal Direction of LHD Vacuum Vessel from Radionuclides Generated in Deuterium Plasma Experiments

    Yasuyuki Ogino, Makoto I. Kobayashi, Keisuke Mukai, Juro Yagi, Satoshi Konishi, Kunihiro Ogawa, Mitsutaka Isobe

    International Journal of Energy Research　2024/01/17

    DOI： 10.1155/2024/1550582 　

  15. High-strength TiB-TiB2 ceramics fabricated by low-temperature sintering with mechanically milled aids

    Yuki Jimba, Yasuki Okuno, Sosuke Kondo, Hao Yu, Yasuyuki Ogino, Shuhei Nogami, Ryuta Kasada

    Ceramics International　2023/11

    DOI： 10.1016/j.ceramint.2023.08.160 　

  16. Effects of grain boundary volume fraction on the threshold dose of irradiation-induced SiC amorphization at 30 °C

    Xinwei Yuan, Sosuke Kondo, Kiyohiro Yabuuchi, Hao Yu, Yasuyuki Ogino, Ryuta Kasada

    Journal of the European Ceramic Society　2023/09

    DOI： 10.1016/j.jeurceramsoc.2023.04.042 　

  17. Influence of electrodes' geometrical properties on the neutron production rate of a discharge fusion neutron source

    Mahmoud Bakr, Toshiro Sakabe, Jan-Philipp Wulfkuehler, Keisuke Mukai, T. W. Smith, Y. Ogino, Martin Tajmar, T. Scott, S. Konishi

    Physics of Plasmas　30　(3)　032701-032701　2023/03/06

    Publisher: {AIP} Publishing

    DOI： 10.1063/5.0134631 　

    ISSN： 1070-664X 1089-7674

    More details Close

    <jats:p> Trapping ions, such as deuterium and tritium, inside a potential well to generate neutrons is a well-established technology through electric and magnetic fields via the inertial electrostatic confinement fusion (IECF) and the tokamak, respectively. In the IECF, the straightforward configuration is a concentric cathode connected to a negative bias, surrounded by a grounded anode that serves as a vacuum vessel. Theoretically, neutrons are generated inside the vessel through fusion between ions that are accelerated by applying several tens kV voltage and tens mA current. Many parameters affect the plasma conditions and fusion in the system, hence the neutron production rate (NPR). This study investigates the cathode transparency and the number of apertures effect on NPR. For this end, eleven cathodes were fabricated from stainless steel in three different groups with different transparency and number of apertures. NPRs were investigated as a function of the cathode transparency and number of apertures at low power operating mode ∼1 kW. Experimental results revealed that higher NPR was produced from lower grid transparency and vice versa; this behavior was explained through beam–surface fusion with grid surface. In addition, a higher NPR was generated from the grid with many apertures; this was attributed to the effect of the deuterium ionization improvement by the number of ionizing electrons through the grid channels. </jats:p>

  18. Evaluation of equi-biaxial strength of thin sic coatings using ring-on-ring testing and digital image correlation

    Yasuyuki Ogino

    International Journal of Applied Ceramic Technology　2023

    DOI： 10.1111/IJAC.14553 　

  19. Measurements of Thermal and Epithermal Neutron Spatial Distribution Using Activation Foils Inside a Fusion Blanket Mock-Up

    Y. Ogino, S. Kenjo, T. Sakabe, K. Mukai, M. Bakr, J. Yagi, S. Konishi

    IEEE Transactions on Plasma Science　2023

    DOI： 10.1109/TPS.2023.3293708 　

  20. Effects of Metal Hydride Coatings at the Electrodes on Neutron Production Rate in a Discharge-Type Fusion Neutron Source

    T. Sakabe, S. Kenjo, Y. Ogino, K. Mukai, M. Bakr, J. Yagi, S. Konishi

    IEEE Transactions on Plasma Science　2022/11

    DOI： 10.1109/TPS.2022.3182723 　

  21. Employing of ZrCo as a fuel source in a discharge-type fusion neutron source operated in self-sufficient mode

    Shunsuke Kenjo, Yasuyuki Ogino, Keisuke Mukai, Mahmoud Bakr, Juro Yagi, Satoshi Konishi

    International Journal of Hydrogen Energy　47　(5)　3054-3062　2022/01

    Publisher: Elsevier {BV}

    DOI： 10.1016/j.ijhydene.2021.10.250 　

    ISSN： 0360-3199

  22. Simulations for practical measurement methods of spatial neutron distribution inside blanket mock-up irradiated with DT neutrons

    Yasuyuki Ogino, Keisuke Mukai, Juro Yagi, Satoshi Konishi

    Fusion Engineering and Design　168　112417-112417　2021/07

    Publisher: Elsevier {BV}

    DOI： 10.1016/j.fusengdes.2021.112417 　

    ISSN： 0920-3796

  23. Evaluation of tritium production rate in a blanket mock-up using a compact fusion neutron source

    Keisuke Mukai, Yasuyuki Ogino, Makoto I. Kobayashi, Bakr Mahmoud, Juro Yagi, Kunihiro Ogawa, Mitsutaka Isobe, Satoshi Konishi

    Nuclear Fusion　61　(4)　046034-046034　2021/04/01

    Publisher: {IOP} Publishing

    DOI： 10.1088/1741-4326/abe4e7 　

    ISSN： 0029-5515 1741-4326

    More details Close

    <jats:title>Abstract</jats:title> <jats:p>We report a neutronics study of a blanket mock-up using a discharge-type compact fusion neutron source. Deuterium–deuterium fusion neutrons were irradiated to the mock-ups composed of tritium breeder and neutron reflector/moderator. The tritium production rate (TPR) per source neutron was measured by a single-crystal diamond detector with a <jats:sup>6</jats:sup>Li-enriched lithium fluoride film convertor after the calibration process. Despite the low neutron yield, energetic alpha and triton particles via <jats:sup>6</jats:sup>Li(n, t)<jats:italic>α</jats:italic> neutron capture as well as <jats:sup>12</jats:sup>C via elastic scattering were successfully detected by the SDD with high signal to noise ratios. The TPRs were experimentally evaluated with errors of 8.4%–8.5% at the 1<jats:italic>σ</jats:italic> level at the positions with high thermal neutron fluxes where the errors were dominantly introduced by uncertainties in the monitoring of the neutron production rate. The calculated to experimental (C/E) values of TPR were evaluated to be 0.91–1.27 (FENDL-2.1) and 0.94–1.28 (FENDL-3.1). As the neutron source can generate 14 MeV neutrons using a mixed gas of deuterium and tritium, this approach provides more opportunities for blanket neutronics experiments.</jats:p>

  24. 2-D Evaluation of Bred Tritium Using Neutron Imaging Plate

    K. Mukai, Y. Ogino, J. Yagi, S. Konishi

    IEEE Transactions on Plasma Science　48　(6)　1831-1835　2020/06

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

    DOI： 10.1109/tps.2019.2955497 　

    ISSN： 0093-3813 1939-9375

  25. Preliminary Results of Neutron Transport in Blanket Module by MCNP with Profile Analysis Using Imaging Plate

    Yasuyuki Ogino, Keisuke Mukai, Juro Yagi, Satoshi Konishi

    Fusion Science and Technology　75　(6)　487-492　2019/08/18

    Publisher: Informa {UK} Limited

    DOI： 10.1080/15361055.2019.1611343 　

    ISSN： 1536-1055 1943-7641

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Misc. 14

  1. 核融合炉ダイバータ用タングステン材料の粒界破壊機構に関する研究

    水野魁人, 水野魁人, PARK Minha, 荻野靖之, 余浩, 近藤創介, 長谷川晃, 笠田竜太

    日本金属学会講演大会(Web)　176th　2025

  2. 低活性高Mn酸化物分散強化アルミナ生成オーステナイト系鋼の室温および高温における機械的特性

    耿殿程, YU Hao, 長谷川晃, 荻野靖之, 近藤創介, 宮澤順一, 笠田竜太

    日本金属学会講演大会(Web)　176th　2025

  3. メソスケールヘテロ組織を有する鉄基ODS合金の強度特性および変形挙動

    小川和希, 小川和希, 耿殿程, 余浩, 荻野靖之, PARK Minha, 近藤創介, 笠田竜太

    日本金属学会講演大会(Web)　176th　2025

  4. Effect of Y2O3/Hf contents on the oxidation behavior and mechanical properties of Co10Ni20Cr15Al ODS superalloys

    余浩, 近藤創介, 荻野靖之, PARK Minha, 笠田竜太

    日本金属学会講演大会(Web)　176th　2025

  5. 強度特性と熱伝導特性のトレードオフ克服を目指したガスアトマイズCuYZr-WO3酸化物分散強化銅合金の機械特性および微細組織

    高子墨, 高子墨, 耿殿程, 余浩, 笠田竜太, 近藤創介, 荻野靖之, 井上耕治

    日本金属学会講演大会(Web)　176th　2025

  6. The influence of MA element addition process on the oxide particle dispersion in ODS-Cu

    齋藤隼輝, YU Hao, GAO Zimo, 陣場優貴, 荻野靖之, 井上耕治, 近藤創介, 笠田竜太

    日本原子力学会春の年会予稿集(CD-ROM)　2025　2025

  7. Investigation of local mechanical properties and microstructure of under-clad hardened layer of RPV steel

    遠藤美奈子, 遠藤美奈子, 笠田竜太, 陣場優貴, GENG Diancheng, 上山魁, PARK Minha, 荻野靖之, YU Hao, 近藤創介, 熊野秀樹

    日本原子力学会春の年会予稿集(CD-ROM)　2025　2025

  8. Corrosion Behavior of Additive Manufactured SiC in high temperature and high pressure water.

    岡田航汰, 岡田航汰, 近藤創介, 宮岸太一, 宮岸太一, YU Hao, 荻野靖之, 笠田竜太

    日本セラミックス協会年会講演予稿集(Web)　2024　2024

  9. ナノインデンテーションを用いたFe2M Laves相の機械的特性評価

    板垣克, 板垣克, 耿殿程, 耿殿程, 陣場優貴, 余浩, 荻野靖之, 近藤創介, 笠田竜太

    日本金属学会講演大会(Web)　175th　2024

  10. Development of the sintered metal boride as the advanced radiation shielding materials

    荻野靖之, 陣場優貴, 板垣克, YU Hao, 近藤創介, 笠田竜太

    東北大学金属材料研究所新素材共同研究開発センター共同利用研究報告書(CD-ROM)　2023　2024

  11. Overcoming the Trade-off Relationship between Strength and Thermal Conductivity in ODS-Cu for Divertor and Elucidating the Mechanism

    YU Hao, 笠田竜太, 近藤創介, 荻野靖之, WU Xiangyu, GENG Diancheng, 齋藤隼輝, YUAN Xinwei, 板垣克, 山村海爾

    東北大学金属材料研究所新素材共同研究開発センター共同利用研究報告書(CD-ROM)　2023　2024

  12. Analysis of the Phenomenon of Increased Interfacial Strength after Irradiation in Double-Layer Ceramic Coatings on Silicon Carbide

    宮岸太一, 近藤創介, 荻野靖之, YU Hao, 笠田竜太

    日本セラミックス協会秋季シンポジウム講演予稿集(Web)　37th　2024

  13. Development of Tungsten Boride Cermet for Radiation Shielding Material in Fusion Reactor

    山村海爾, 荻野靖之, 陣場優貴, YU Hao, 近藤創介, 笠田竜太

    日本原子力学会秋の大会予稿集(CD-ROM)　2024　2024

  14. Suppression of irradiation hardening in W-coated F82H produced by underwater explosive-welding

    関航太朗, 外本和幸, 田中茂, 小柳孝彰, 吉田健太, 長谷川晃, 近藤創介, YU Hao, 荻野靖之, 笠田竜太, 笠田竜太

    日本原子力学会秋の大会予稿集(CD-ROM)　2024　2024

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