Details of the Researcher

PHOTO

Chika Kamezawa
Section
Institute of Multidisciplinary Research for Advanced Materials
Job title
Assistant Professor
Degree

  • 博士（学術）（総合研究大学院大学）

  • 修士（教育学）（東京学芸大学）

e-Rad No.
60897875

Research History 9

  • 2025/01 - Present
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Assistant professor

  • 2024/04 - 2024/12
    Tohoku University　International Center for Synchrotron Radiation Innovation Smart　JSPS Research fellow (RPD)

  • 2023/10 - 2024/03
    High Energy Accelerator Research Organization　Institute of Materials Structure Science　Affiliated scientist

  • 2022/09 - 2023/09
    High Energy Accelerator Research Organization　Institute of Materials Structure Science　Assistant Professor

  • 2020/10 - 2022/08
    High Energy Accelerator Research Organization　Institute of Materials Structure Science　Postdoctoral researcher

  • 2018/04 - 2020/03
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials

  • 2019/08 - 2019/10
    Massachusetts General Hospital, Harvard medical school

  • 2015/04 - 2017/09
    GE Healthcare Japan Corporation

  • 2014/01 - 2014/12
    High Energy Accelerator Research Organization　Institute of Materials Structure Science

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Education 4

  • The Graduate University for Advanced Studies　School of High Energy Accelerator Science　Department of Materials Structure Science

    2017/10 - 2020/09

  • Tokyo Gakugei University　Graduate School of Education　Department of physics

    2013/04 - 2015/03

  • Tokyo Gakugei University　Faculty of Education　Department of physics

    2009/04 - 2013/03

  • Saitama Prefectural Urawa Girls' Upper Secondary School（Saitama prefectural Urawa daiichi girls' high school）

    2005/04 - 2009/03

Professional Memberships 6

  • The Japanese Society of Medical Imaging Technology

    - Present

  • Japan Society of Medical Physics

  • Young Researcher's Association of Medical Physics

  • The Japan Society of Applied Physics

  • The Japanese Society for Synchrotron Radiation Research

  • The Physical Society of Japan

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Research Interests 2

  • X-ray imaging

  • Elastogrpahy

Research Areas 3

  • Energy / Quantum beam science /

  • Natural sciences / Bio-, chemical, and soft-matter physics /

  • Life sciences / Medical systems / Elastography

Awards 11

  1. Best Student Poster Award

    2024/08　The 16th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2024)　A Preliminary Analysis on 3D Shear Wave Elastography with Laboratory X-ray Source

  2. ICRPT Outstanding presentation award

    2022/04　Association of Medical Physics

  3. Exemption from scholarship refund due to outstanding achievement (Full exemption: 2,880,000 yen)

    2021/07　Japan Student Services Organization (JASSO)

  4. SOKENDAI award (Sokendai (The graduate university for advanced studies) president’s award)

    2020/09　SOKENDAI (The graduate university for advanced studies)

  5. Presentation award

    2019/12　The Japan Society of applied Physics, Tohoku Chapter

  6. Director General Award

    2019/11　KEK (High Energy Accelerator Research Organization)

  7. Director General Award

    2018/11　KEK (High Energy Accelerator Research Organization)

  8. Exemption from scholarship refund due to outstanding achievement (Full exemption: 1,200,000 yen)

    2015/05　Japan Student Services Organization (JASSO)

  9. Tokyo Gakugei University president's award

    2013/03　Tokyo Gakugei University

  10. Excellent student recognition

    2012/12　Japan Student Services Organization (JASSO)

  11. Young excellence presentation award

    2012/07　Japan Radioisotope association

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Papers 18

  1. Fabrication of an X-ray absorption grating for X-ray Talbot interferometry by ultracentrifugal deposition

    Ren Nasukawa, Chika Kamezawa, Yui Bishago, Xiaoyu Liang, Patrik Vagovic, Kentaro Kajiwara, Ryosuke Ueda, Wataru Yashiro

    Japanese Journal of Applied Physics　2025/10/01

    DOI： 10.35848/1347-4065/ae09e2 　

  2. A Preliminary Analysis on 3D Shear Wave Elastography With Laboratory X-Ray Source

    Ren Nasukawa, Chika Kamezawa, Yasukazu Nakaye, Yasutaka Sakuma, Masaru Kuribayashi, Liang Xiaoyu, Kazuyuki Hyodo, Akio Yoneyama, Wataru Yashiro

    2024 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)　1-5　2024/08/04

    Publisher: IEEE

    DOI： 10.1109/cleo-pr60912.2024.10676847 　

  3. Large-view x-ray imaging for medical applications using the world’s only vertically polarized synchrotron radiation beam and a single asymmetric Si crystal Peer-reviewed

    Chika Kamezawa, Kazuyuki Hyodo, Chiho Tokunaga, Toru Tsukada, Shonosuke Matushita

    Physics in Medicine & Biology　68　(19)　195010-195010　2023/09/22

    Publisher: IOP Publishing

    DOI： 10.1088/1361-6560/acf640 　

    ISSN： 0031-9155

    eISSN： 1361-6560

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    Abstract Objective. X-ray microangiography provides detailed information on the internal structure and function of a biological subject. Its ability to evaluate the microvasculature of small animals is useful for acquiring basic and clinical medical knowledge. The following three conditions are necessary to attain detailed knowledge of biological functions: (1) high temporal resolution with sufficient x-ray intensity, (2) high spatial resolution, and (3) a wide field of view. Because synchrotron radiation microangiography systems provide high sapatial resolution and high temporal resolution as a result of their high x-ray intensity, such systems have been developed at various synchrotron radiation facilities, starting with the photon factory, leading to numerous medical discoveries. However, the three aforementioned functions are incompatible with the use of synchrotron radiation because the x-ray intensity decreases when a wide field of view is obtained. To overcome these problems, we developed a new x-ray optical system for microangiography in rats using synchrotron radiation x-rays. Approach. Instead of using monochromatic synchrotron radiation x-rays with a conventional double-crystal monochromator, we used white synchrotron radiation x-rays and an asymmetric Si crystal to simultaneously monochromatize the beam and widen the field of view. Main results. The intensity profile and spatial resolution of the x-ray images were then evaluated. The proposed x-ray optics increased the x-ray intensity and beam width by factors of 1.3 and 2.7, respectively, compared with those of conventional monochromatic x-rays. In addition, in vivo studies on microangiography in rats were performed to confirm that the images had sufficient intensity, spatial resolution, and field of view. One of a series of images taken at 50 ms frame−1 was shown as an example. Significance. This x-ray optics provides sufficient x-ray intensity, high spatial resolution, and a wide field of view. This technique is expected providing new insights into the evaluation of the vascular system.

  4. Evaluation of high intensity synchrotron radiation x-ray imaging using Si crystals with lapped surface at 33.3 keV Peer-reviewed

    Chika Kamezawa, Kazuyuki Hyodo

    Review of Scientific Instruments　94　(9)　2023/09/01

    Publisher: AIP Publishing

    DOI： 10.1063/5.0161239 　

    ISSN： 0034-6748

    eISSN： 1089-7623

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    In x-ray imaging methods, such as synchrotron radiation microangiography, the x-ray intensity has become more important in recent years for real-time dynamic observations to evaluate temporal changes in samples. Many synchrotron radiation facilities use x-rays monochromated by diffraction from perfect Si crystals to improve the spatial resolution of x-ray images and obtain detailed information about a sample. In this paper, monochromatic synchrotron x-ray images were acquired using Si crystals lapped with abrasives to enhance the x-ray intensity using white synchrotron radiation x-rays for observing dynamic changes in samples. The x-ray intensity, spatial resolution, and contrast noise ratio (CNR) in the acquired x-ray images were quantitatively evaluated using a state-of-the-art high-spatial-resolution detector. The x-ray intensity was substantially increased by a factor of ∼8 when a lapped Si crystal was used. When the lapped Si crystal was used, the spatial resolution of x-ray images in the diffraction-plane direction was ∼70% lower than when an etched Si crystal was used at a spatial resolution of 10 lp/mm. By contrast, the CNR in x-ray images, which is important for observing the interior of a sample, increased threefold when a contrast agent containing iodine at a concentration of 38 wt. % was used. It was confirmed that the combination of white synchrotron radiation x-rays and a lapped crystal produces an intense monochromatic x-ray, providing an important evaluation for the use of optics for each research purpose.

  5. Dynamic X-ray elastography using a pulsed photocathode source Peer-reviewed

    Chika Kamezawa, Avilash Cramer, Wolfgang Krull, Wataru Yashiro, Kazuyuki Hyodo, Rajiv Gupta

    Scientific Reports　11　(1)　2021/12/16

    Publisher: Springer Science and Business Media {LLC}

    DOI： 10.1038/s41598-021-03221-y 　

    ISSN： 2045-2322

    eISSN： 2045-2322

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    <title>Abstract</title>X-ray absorption of breast cancers and surrounding healthy tissue can be very similar, a situation that sometimes leads to missed cancers or false-positive diagnoses. To increase the accuracy of mammography and breast tomosynthesis, we describe dynamic X-ray elastography using a novel pulsed X-ray source. This new imaging modality provides both absorption and mechanical properties of the imaged material. We use a small acoustic speaker to vibrate the sample while a synchronously pulsed cold cathode X-ray source images the mechanical deformation. Using these stroboscopic images, we derive two-dimensional stiffness maps of the sample in addition to the conventional X-ray image. In a breast phantom composed of ZrO2 powder embedded in gel, dynamic elastography derived stiffness maps were able to discriminate a hard inclusion from surrounding material with a contrast-to-noise ratio (CNR) of 4.5. The CNR on the corresponding absorption image was 1.1. This demonstrates the feasibility of dynamic X-ray elastography with a synchronously pulsed X-ray source.

  6. Dynamic X-ray elastography: A new tool for characterizing soft materials Peer-reviewed

    Kamezawa, C., Numano, T., Kawabata, Y., Inoue, S., Kawakami, M., Furukawa, H., Hyodo, K., Yashiro, W.

    MRS Communications　11　(1)　2021/01/19

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1557/s43579-020-00004-w 　

    ISSN： 2159-6867 2159-6859

    eISSN： 2159-6867

  7. Evaluation of spatial resolution for x-ray imaging using vertically polarized synchrotron radiation at the Photon Factory Peer-reviewed

    Chika Kamezawa, Kazuyuki Hyodo

    Medical Imaging technology　38　(4)　185-193　2020/09

  8. Feasibility study of interferometric phase-contrast X-ray imaging using the hard-X-ray free-electron laser of the SPring-8 Angstrom Compact Free-Electron Laser International-journal Peer-reviewed

    Akio Yoneyama, Rika Baba, Daiko Takamatsu, Chika Kamezawa, Ichiro Inoue, Taito Osaka, Shigeki Owada, Makina Yabashi

    Journal of Synchrotron Radiation　27　(5)　1358-1361　2020/09/01

    Publisher: International Union of Crystallography ({IUCr})

    DOI： 10.1107/S1600577520007778 　

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    Aiming for the fine observation of fast physical phenomena such as phonon propagation and laser ablation, phase-contrast X-ray imaging combined with a crystal X-ray interferometer and the X-ray free-electron laser (XFEL) of the SPring-8 Angstrom Compact Free-Electron Laser has been developed. An interference pattern with 70% visibility was obtained by single-shot exposure with a 15 keV monochromated XFEL. In addition, a phase map of an acrylic wedge was successfully obtained using the fringe scanning method.

  9. X-ray elastography by visualizing propagating shear waves Peer-reviewed

    Chika Kamezawa, Tomokazu Numano, Yoshihiko Kawabata, Hiroyasu Kanetaka, Maiko Furuya, Kotone Yokota, Hidemi Kato, Akio Yoneyama, Kazuyuki Hyodo, Wataru Yashiro

    Applied Physics Express　13　(4)　042004-042004　2020/04/01

    Publisher: {IOP} Publishing

    DOI： 10.35848/1882-0786/ab7e06 　

    ISSN： 1882-0778

    eISSN： 1882-0786

  10. A multi-beam X-ray imaging detector using a branched optical fiber bundle Peer-reviewed

    Yashiro, W., Shirasawa, T., Kamezawa, C., Voegeli, W., Arakawa, E., Kajiwara, K.

    Japanese Journal of Applied Physics　59　(3)　2020/03

    DOI： 10.35848/1347-4065/ab79fd 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  11. Fabrication of X-ray absorption grating using an ultracentrifuge machine Peer-reviewed

    Hojo, D., Kamezawa, C., Hyodo, K., Yashiro, W.

    Japanese Journal of Applied Physics　58　(8)　2019/07

    DOI： 10.7567/1347-4065/ab3354 　

  12. Millisecond-order X-ray phase tomography with a fringe-scanning method Peer-reviewed

    Yashiro, W., Kamezawa, C., Noda, D., Kajiwara, K.

    Applied Physics Express　11　(12)　2018/10

    DOI： 10.7567/APEX.11.122501 　

  13. Initial Conformation of Adsorbed Proteins at an Air-Water Interface Peer-reviewed

    Yano, Y.F., Arakawa, E., Voegeli, W., Kamezawa, C., Matsushita, T.

    Journal of Physical Chemistry B　122　(17)　4662-4666　2018/04

    DOI： 10.1021/acs.jpcb.8b01039 　

    ISSN： 1520-6106

    eISSN： 1520-5207

  14. Fast structure determination of electrode surfaces for investigating electrochemical dynamics using wavelength-dispersive X-ray crystal truncation rod measurements Peer-reviewed

    Shirasawa, T., Masuda, T., Voegeli, W., Arakawa, E., Kamezawa, C., Takahashi, T., Uosaki, K., Matsushita, T.

    Journal of Physical Chemistry C　121　(39)　2017/10

    DOI： 10.1021/acs.jpcc.7b09784 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  15. Structural Change of TiO2(110)Surface Involved in the Photoinduced Wettability Transition Peer-reviewed

    Tetsuroh SHIRASAWA, Wolfgang VOEGELI, Etsuo ARAKAWA, Chika KAMEZAWA, Toshio TAKAHASHI, Tadashi MATSUSHITA

    38　(12)　620-625　2017/08

  16. A quick convergent-beam laboratory X-ray reflectometer using a simultaneous multiple-angle dispersive geometry Peer-reviewed

    Wolfgang Voegeli, Chika Kamezawa, Etsuo Arakawa, Yohko F. Yano, Tetsuroh Shirasawa, Toshio Takahashia, Tadashi Matsushita

    Journal of Applied Crystallography　50　570-575　2017/04

    DOI： 10.1107/S1600576717002461 　

    ISSN： 0021-8898

    eISSN： 1600-5767

  17. 教育用3次元X線CT装置の開発と利用 Peer-reviewed

    荒川悦雄, 岩見隆太郎, 本久靖子, 亀沢知夏, 鴨川仁, フォグリ ヴォルフガング

    RADIOISOTOPES　65　(3)　119-128　2016/01

  18. Publishing the pamphlet of Radiation Education for Junior High school Peer-reviewed

    63　145-149　2014/03

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Misc. 4

  1. Present status and future of dynamic X-ray elastography Invited

    Chika Kamezawa, Wataru Yashiro, Kazuyuki Hyodo

    Photon factory news　38　(4)　15-19　2021/02

  2. 位相イメージングを用いたX線エラストグラフィの基礎的検討

    亀沢知夏, 亀沢知夏, 亀沢知夏, 米山明男, 矢代航, 兵藤一行, 兵藤一行

    KEK Proceedings (Web)　(2020-9)　2021

  3. マサチューセッツ総合病院（ハーバード 大学関連病院）滞在記 Invited

    亀沢知夏

    Photon factory news　37　(4)　35-36　2020/02

  4. bMASR2018 に参加して Invited

    亀沢知夏

    Photon factory news　36　(4)　23-24　2019/02

Books and Other Publications 2

  1. 文化資源が秘めた歴史物語-先端分析技術で鮮やかに読み解く

    新知創造学際領域形成, 学際ハブ, 事例集編集委員会

    東北大学金属材料研究所新知創造学際領域形成推進室 藤田全基　2025/09

    ISBN: 9784991441103

  2. 放射線の軌跡

    荒川 悦雄, 鴨川 仁, 金井 祐子, 亀沢 知夏, 西浦 慎悟, 番田 清美

    東京学芸大学　2012

Presentations 79

  1. Large view of X-ray imaging system for medical applications at BL-14C, Photon Factory

    Chika Kamezawa, Wataru Yashiro, Shonosuke Matsushita, Kazuyuki Hyodo

    Asia-Oceania Conference on Synchrotron Radiation Instrumentation 2025　2025/10/29

  2. Developments of X-ray computed laminography with sub-micrometer spatial resolution at PF AR-NE1A

    Yuki SHIBAZAKI, Daisuke WAKABAYASHI, Yoshio SUZUKI, Ryutaro NISHIMURA, Chika KAMEZAWA

    29th International Conference on High Pressure Science and Technology (AIRAPT-29)

  3. Multi-Beam X-ray Imaging at NanoTerasu BL09W

    Wataru Yashiro, Ryosuke Ueda, Chika Kamezawa, Hiroki Sumiishi, Hitoshi Soyama, Wolfgang Voegeli, Tetsuroh Shirasawa, Hiroyuki Kudo

    The 86th JSAP Autumun Meeting 2025　2025/09/07

  4. Development of a large field dynamic X-ray elastography system with high-speed imaging

    Chika Kamezawa, Ryosuke Ueda, Rinno Ubukata, Yuto Manri, Akio Yoneyama, Kazuyuki Hyodo, Wataru Yashiro

    The 86th JSAP Autumun Meeting 2025　2025/09/10

  5. Development of analysis method for 3D dynamic X-ray elastography Invited

    Chika Kamezawa, Ren Nasukawa, Rinno Ubukata, Yuto Manri, Akio Yoneyama, Kazuyuki Hyodo, Wataru Yashiro

    The 44th JAMIT annual meeting　2025/08/30

  6. Improving image quality in X-ray grating interferometry using Fourier analysis of moiré fringe with grating angulation

    SORMA West 2025　2025

  7. X-ray Imaging and Tomography at BL09W in NanoTerasu, a 4th-generation high-brilliance 3 GeV Synchrotron Light Source

    R. Ueda, X. Liang, C. Kamezawa, H. Sumiishi, Y. Bishago, T. Nishio, J. Yoshida, M. Daimon, S. Hiramoto, W. Voegeli, T. Shirasawa, W. Yashiro

    XOPT2025　2025/04/23

  8. Laboratory 3D X-ray elastography using a lens- coupled high-speed X-ray imaging detector

    Rinno Ubukata, Chika Kamezawa, Xiaoyu Liang, Ren Nasukawa, Yuto Manri, Akio Yoneyama, Wataru Yashiro

    XOPT2025　2025/04/23

  9. Feasibility study of different frequencies elastography using laboratory X-ray source

    Chika Kamezaw, Xiaoyu Liang, Ren Nasukawa, Rinno Ubukata, Yuto Manri, Akio Yoneyama, Wataru Yashiro

    XOPT2025　2025/04/23

  10. 内部の硬さ分布を高空間分解能で画像化する動的X線エラストグラフィの基礎的検討

    亀沢知夏, 梁暁宇, 那須川蓮, 生方鈴乃, 兵藤一行, 矢代航

    第129回日本医学物理学会学術集会　2025/04/13

  11. PF AR-NE1Aにおけるsub-µm空間分解能 トモグラフィ、ラミノグラフィ測定システムの開発

    柴﨑裕樹, 若林大佑, 鈴木芳生, 西村龍太郎, 亀沢知夏

    2024年度量子ビームサイエンスフェスタ　2025/03/13

  12. Basic study of advanced microangiography system using synchrotron radiation

    2025/03/13

  13. せん断波伝播を利用した 3 次元 X 線エラストグラフィ

    那須川 蓮, 亀沢 知夏, 中江 保一, 佐久間 保孝, 栗林 勝, 梁 暁宇, 兵藤 一行, 米山 明男, 矢代 航

    応用物理学会東北支部 第 79 回学術講演会　2024/12/06

  14. 3 GeV高輝度放射光施設ナノテラスBL09WにおけるＸ線イメージング

    矢代 航、梁 暁宇、亀沢 知夏、住石 海希

    2024年 第85回 応用物理学会 秋季学術講演会　2024/09/16

  15. X線を利用した３次元せん断波エラストグラフィの検討

    那須川 蓮, 亀沢 知夏, 中江 保一, 佐久間 保孝, 栗林 勝, 梁 暁宇, 兵藤 一行, 米山 明男, 矢代 航

    2024年 第85回 応用物理学会 秋季学術講演会　2024/09/16

  16. X線干渉計による X 線エラストグラフィの検討 Invited

    亀沢知夏

    放射光位相CTシンポジウム　2024/09/09

  17. A Preliminary Analysis on 3D Shear Wave Elastography with Laboratory X-ray Source

    Ren Nasukawa, Chika Kamezawa, Yasukazu Nakaye, Yasutaka Sakuma, Masaru Kuribayashi, Liang Xiaoyu, Kazuyuki Hyodo, Akio Yoneyama, Wataru Yashiro

    The 16th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2024)　2024/08/06

  18. Advancement of X-ray imaging system to obtain higher brightness beam and large field of view at BL-14C.

    Chika Kamezawa, Kazuyuki Hyodo

    2024/03/06

  19. Siビームスプリッタを用いた トモグラフィとラミノグラフィの同時測定

    柴﨑裕樹, 若林大佑, 鈴木芳生, 亀沢知夏, 杉山弘, 西村龍太郎, 船守展正

    第38回日本放射光学会年会・放射光科学合同シンポジウム　2024/01/11

  20. Feasibility study of 3D X-ray elastography using laboratory X-ray source.

    Chika Kamezawa, Yasukazu Nakaye, Yasutaka Sakuma, Masaru Kuribayashi, Liang Xiaoyu, Kazuyuki Hyodo, Akio Yoneyama, and Wataru Yashiro

    XOPT2023　2023/04/17

  21. Vertical wigglerから放出されるX線の特性評価

    亀沢知夏, 兵藤一行

    量子ビームサイエンスフェスタ　2023/03/15

  22. 放射光血管造影による腫瘍内微小血管の可視化

    松下昌之助, 兵藤一行, 亀沢知夏, 塚田 亨, 徳永千穂, 坂本裕昭, 平松祐司

    量子ビームサイエンスフェスタ　2023/03/15

  23. 白色放射光と非対称結晶１枚による 大視野X線イメージング

    亀沢知夏, 兵藤一行, 松下昌之助

    量子ビームサイエンスフェスタ　2023/03/15

  24. 平行ビーム照射型マイクロX線CTシステムの開発

    米山明男, 亀沢知夏, 平野馨一

    量子ビームサイエンスフェスタ　2023/03/15

  25. 内部の弾性率を可視化する3次元動的X線エラストグラフィの試み

    亀沢知夏, 梁暁宇, 米山明男, 兵藤一行, 矢代航

    第22回東北大学多元物質科学研究所研究発表会　2022/12/08

  26. Fundamental Study for 3D Dynamic X-ray Elastography of Visualizing Elastic modulus

    Chika Kamezawa, Xiaoyu Liang, Akio Yoneyama, Kazuyuki Hyodo, Wataru Yashiro

    The 83rd JSAP Autumn Meeting　2022/09/21

  27. 放射光X線とX線造影剤を用いた茎内部の観察の試み

    亀沢知夏, 兵藤一行

    ⽇本植物形態学会第 34 回総会・⼤会　2022/09/16

  28. Development of dynamic x-ray elastography using laboratory x-ray source and synchrotron radiation for soft tissues and soft materials

    Chika Kamezawa, Kazuyuki Hyodo, Wataru Yashiro

    The 123rd scientific meeting of the Japan Society of Medical Physics (JSMP)　2022/04/15

  29. Comparison between vertical and horizontal spatial resolution for x-ray imaging using the world’s only vertically polarized synchrotron radiation at BL-14C, Photon Factory

    Chika Kamezawa, Kazuyuki Hyodo

    14th International Conference on Synchrotron Radiation Instrumentation　2022/03/30

  30. Development of the imaging method of x-ray elastography using white synchrotron x-rays

    2022/03/08

  31. Feasibility study on 3D dynamic X-ray elastography for soft tissue and soft materials Invited

    Chika Kamezawa, Liang Xiaoyu, Tetsuro Shirasawa, Akio Yoneyama, Kentaro Kajiwara, Kazuyuki Hyodo, Wataru Yashiro

    XOPT2021　2021/04/19

  32. Evaluation of x-ray micro-angiography system

    2021/03/10

  33. Feasibility study of vector X-ray imaging using diffraction-enhanced and crystal interferometric X-ray imaging

    A. Yoneyama, M. Kawamoto, Thet-Thet Lwin, R. Baba, C. Kamezawa, K. Hirano, K. Hyodo

    European Congress of Radiology 2021

  34. 放射光X線イメージングを用いた X線エラストグラフィに関する基礎的検討

    亀沢 知夏, 梁暁宇, 白澤徹郎, 米山明男, 梶原堅太郎, 兵藤一行, 矢代航

    第３４回日本放射光学会年会・放射光科学合同シンポジウム　2021/01/09

  35. Basic study of X-ray Elastography using phase contrast imaging Invited

    X線干渉計と縦型ウィグラーを用いた超高感度画像計測の現状と将来展望　2020/10/09

  36. Evaluation of X-ray micro-angiography system at BL-14C and NE7A

  37. 位相コントラストイメージングを用いた試料の「硬さ」に関する研究’

    亀沢知夏, 兵藤一行, 矢代航, 米山明男

    量子ビームサイエンスフェスタ

  38. 高時間分解X線サーモグラフィーを用いた動的な熱伝搬可視化の試み

    米山明男, 高松大郊, 馬場理香, 亀沢知夏, 大坂泰斗

    第３３回日本放射光学会年会・放射光科学合同シンポジウム

  39. 試料内部の弾性率を画像化するＸ線エラストグラフィ法の基礎的研究

    亀沢 知夏, 兵藤 一行, 沼野 智一, 川畑 義彦, 金高 弘恭, 横田 琴音, 古谷 真衣子, 加藤 秀実, 達久 将成, 米山 明男, 矢代 航

    応用物理学会東北支部 第 74 回学術講演会

  40. Basic study on X-ray elastography for soft tissue and soft materials

    C. Kamezawa, W. Yashiro, K. Hyodo

    KEK Student day　2019/11/12

  41. Fabrication of X-ray and neutron gratings using ultracentrifugation machine’

    W. YASHIRO, C. KAMEZAWA, K. HYODO, D. HOJO

    5th international conference on X-ray and Neutron Phase Imaging with Gratings

  42. Development of sample elasticity measurement method using X-ray phase contrast imaging

    C. Kamezawa, K. Hyodo, T. Numano, Y. Kawabata, H. Kanetaka, M. Furuaya, K. Yokota, H. Kato, M. Datekyu, A. Yoneyama, W. Yashiro

    5th international conference on X-ray and Neutron Phase Imaging with Gratings

  43. 高時間分解X線サーモグラフィーを用いた動的な熱伝搬可視化の試み

    米山明男, 高松大郊, 亀沢知夏, 馬場理香

    SPring-8シンポジウム2019

  44. Ｘ線位相コントラストイメージングとエラストグラフィ

    亀沢知夏

    第一回医学物理若手の会（YRAMP）研究会　2019/06/22

  45. X-ray Phase-Contrast Imaging with Gratings ̶ Future Potential for Polymer Materials Research

    W. Yashiro, C. Kamezawa, T. Higuchi, H. Jinnai, M. Datekyu, H. Kato, D. Noda, K. Kajiwara, W. Voegeli, R. Ueda, H. Kudo

    ISPAC 2019 32nd International Symposium on Polymer Analysis and Characterization

  46. Fabrication of X-ray absorption grating using ultracentrifuge

    Wataru Yashiro, Chika Kamezawa, Kazuyuki Hyodo, Daisuke Hojo

    XOPT2019

  47. Development of measuring method of a sample elasticity by X-ray Imaging

    Chika Kamezawa, Kazuyuki Hyodo, Akio Yoneyama, Wataru Yashiro

    XOPT2019

  48. X-ray imaging for medical applications at BL-14C and NE7A

  49. 位相コントラストイメージングを用いた試料の「硬さ」に関する研究

    亀沢知夏, 兵藤一行, 矢代航, 米山明男

    量子ビームサイエンスフェスタ

  50. Development of micro-angiography system using synchrotron radiation monochromatic x-rays at the Photon Factory

    2019/03/08

  51. 放射光X線イメージングを用いた試料の硬さの評価に関する検討

    亀沢知夏, 兵藤一行, 矢代航, 米山明男

    SATテクノロジーショーケース　2019/01/29

  52. Millisecond-order X-ray phase tomography for biomaterials with a fringe-scanning method

    Wataru Yashiro, Chika Kamezawa, Daiji Noda, Kentaro Kajiwara

    The International Symposium on Biomedical Applications of X-Ray Phase Contrast Imaging 2019　2019/01/22

  53. Feasibility study on evaluation of a sample elasticity by X-ray Imaging for medical application

    Chika Kamezawa, Kazuyuki Hyodo, Akio Yoneyama, Hidemitsu Furukawa, Masaru Kawakami, Shota Inoue, Wataru Yashiro

    The International Symposium on Biomedical Applications of X-Ray Phase Contrast Imaging 2019　2019/01/21

  54. 縞走査法による高空間分解能ミリ秒 X 線トモグラフィ

    矢代航, 亀沢知夏, 野田大二, 梶原堅太郎

    第３２回日本放射光学会年会・放射光科学合同シンポジウム

  55. 放射光 X 線イメージングを用いた試料の硬さに関する基礎的検討

    亀沢知夏, 矢代航, 米山明男, 梶原堅太郎, 兵藤一行

    第３２回日本放射光学会年会・放射光科学合同シンポジウム

  56. 放射光位相コントラスト CT を用いた食品の構造解析

    三木宏美, 亀沢知夏, 米山明男, 山田重人, 高桑徹也, 兵藤一行

    第３２回日本放射光学会年会・放射光科学合同シンポジウム

  57. Feasibility study on evaluation of sample elasticity by X-ray Imaging

    Chika Kamezawa, Kazuyuki Hyodo, Wataru Yashiro

    KEK Student day　2018/11/13

  58. Basic study on the advantage of vertically polarized synchrotron radiation for medical imaging systems at the Photon Factory.

    Chika Kamezawa, Kazuyuki Hyodo, Wataru Yashiro, Akio Yoneyama, Tetsuya Takakuwa, Shigehito Yamada

    bMASR2018

  59. X-ray Imaging with X-ray Grating Interferometry-Future Potentials for Materials Research

    Wataru Yashiro, Chika Kamezawa, Masanari Datekyu, Hidemi Kato, Daiji Noda, Kentaro Kajiwara, Wolfgang Voegeli, Ryosuke Ueda, Hiyoyuki Kudo

    13th International Workshop on Biomaterials in Interface Science

  60. X線磁気回折実験におけるPILATUS制御・解析プログラムの開発

    加藤康平, 高嶋雅仁, 大沢冬樹子, 下山秀文, 平野馨一, 永谷康子, 小菅隆, 亀沢知夏, Wolfgang Voegeli, 荒川悦雄, 鈴木宏輔, 桜井浩, 伊藤正久

    第30回日本放射光学会年会・放射光科学合同シンポジウム

  61. Quick thin film/multilayer characterization using convergent-beam X-ray scattering measurements

    Wolfgang VOEGELI, Chika KAMEZAWA, Hirokazu SAITO, Etsuo ARAKAWA, Tetsuroh SHIRASAWA, Toshio TAKAHASHI, Yohko F. YANO, Yumiko TAKAHASHI, Tadashi MATSUSHITA

    International Vacuum Congress (IVC-20)

  62. Anodic Oxidation of Silicon Observed In-Situ by Specular X-ray Reflectivity

    Wolfgang Voegeli, Etsuo Arakawa, Chika Kamezawa, Ryutaro Iwami, Tetsuro Shirasawa, Tadashi Matsushita

    10th International Symposium on Atomic Level Characterizations for New Materials and Devices’15

  63. A method for quick measurement of the surface X-ray diffraction profile

  64. 実験室Ｘ線源を用いた時分割反射率計、回折計の開発

    亀沢知夏, Voegeli Wolfgang, 荒川悦雄, 松下正, 白澤徹朗, 高橋敏男, 松下正, 矢野陽子

    日本物理学会2015年春季大会

  65. Observation of oxide growth during anodic oxidation of silicon by time-resolved X-ray reflectivity

  66. Structural change during the hydrophilic reaction of the rutile-TiO2(110) surface studied with surface X-ray diffraction

    Tetsuroh Shirasawa, Wolfgang Voegeli, Etsuo Arakawa, Ryutaro Iwami, Chika Kamezawa, Yudai Yamaguchi, Tadashi Matsushita, Toshio Takahashi

    The 7th International Symposium on Surface Science

  67. In-situ X-ray reflectivity observation of oxide growth during anodic oxidation of Si

    Wolfgang Voegeli, Etsuo Arakawa, Chika Kamezawa, Ryutaro Iwami, Tetsuro Shirasawa, Tadashi Matsushita

    The 7th International Symposium on Surface Science

  68. A quick laboratory X-ray reflectometer/diffractometer for time-resolved observations

    Chika Kamezawa, Wolfgang Voegeli, Wakari Hishinuma, Etsuo Arakawa, Tadashi Matsushita, Yohko F. Yano

    KEK Studentday　2014/10/22

  69. その場X線反射率測定による薄膜成長の観察

    Voegeli Wolfgang, 荒川悦雄, 亀沢知夏, 岩見隆太郎, 白澤徹郎, 松下正

    2014年電気化学秋季大会

  70. 実験室Ｘ線源を用いた時分割反射率測定装置の開発

    亀沢知夏, Voegeli Wolfgang, 荒川悦雄, 松下正, 矢野陽子

    日本物理学会2014年秋季大会

  71. X線反射率による電気化学的薄膜成長のその場観察

    Voegeli Wolfgang, 荒川悦雄, 亀沢知夏, 岩見隆太郎, 白澤徹郎, 松下正

    日本物理学会2014年秋季大会

  72. Photoresponsive LB Films under Light Irradiation Observed by Time-Resolved XRR

    E. Arakawa, T. Matsushita, W. Voegeli, Y. Yano, C. Kamezawa, R. Iwami, S. Nagano, M. Hara, T. Seki

    23rd Congress and General Assembly of the International Union of Crystallography

  73. Gemstones and Saltsas Light Emitters for Learning X-ray Detectors

    Etsuo Arakawa, Wolfgang Voegeli, Chika Kamezawa, Ryutaro Iwami, Tetsuro Shirasawa, Yudai Yamaguchi, Masashi Kamogawa, Masataka Nakata, Kazuyuki Hyodo

    23rd Congress and General Assembly of the International Union of Crystallography

  74. A quick laboratory X-ray reflectometer for time-resolved observations

    Chika Kamezawa, Wolfgang Voegeli, Wakari Hishinuma, Etsuo Arakawa, Tadashi Matsushita, Yohko F. Yano

    23rd Congress and General Assembly of the International Union of Crystallography

  75. Electrochemicalthin-film growth investigated by time-resolved X-ray reflectivity

    Wolfgang Voegeli, Etsuo Arakawa, Chika Kamezawa, Ryutaro Iwami, Tetsuro Shirasawa, Tadashi Matsushita

    The 13th Surface X-ray and Neutron Scattering conference

  76. 教員養成に向けた放射線教育用機器の開発

    岩見隆太郎, 亀沢知夏, フォグリヴォルフガング, 鴨川仁, 荒川悦雄

    第51回アイソトープ・放射線研究発表会

  77. 生体からの自然放射線検出法

    亀沢知夏, 降籏美来, 鴨川仁, 荒川悦雄

    第50回アイソトープ・放射線研究発表会

  78. 中学生向け放射線教育のパンフレットの出版

    亀沢知夏, 鴨川仁, 金井祐子, 西浦慎悟, 番田清美, 荒川悦雄

    第49回アイソトープ・放射線研究発表会

  79. Development of a quick laboratory X-ray reflectometer for time-resolved observations

    W. Voegeli, C. Kamezawa, E. Arakawa, T. Matsushita, Yohko F. Yano

    The 7th International Symposium on Surface Science　2014/11/02

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Industrial Property Rights 1

  1. System and method for x-ray elastography using dynamic pulsing

    Rajiv Gupta, Chika Kamezawa, Avilash Cramer, Wolfgang Krull, Wataru YASHIRO, Kazuyuki Hyodo

    Property Type: Patent

Research Projects 5

  1. Development of a method for imaging the elastic modulus of living organisms in three-dimensional space with high spatial resolution

    Offer Organization: Grant-in-Aid for Scientific Research (B)

    2025/04 - 2029/03

  2. Basic research on microangiography system using synchrotron radiation white X-rays

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: High Energy Accelerator Research Organization

    2024/04 - 2027/03

  3. Development of a new data analysis method for imaging hardness using X-ray elastography

    Offer Organization: Grant-in-Aid for JSPS Fellows

    2024/04 - 2027/03

  4. Development of a new method for non-invasive observation of elastic moduli inside living bodies

    Chika Kamezawa

    Offer Organization: Japan Society for the Promotion of Science

    System: JSPS KAKENHI

    Category: Grant-in-Aid for Early-Career Scientists

    Institution: High Energy Accelerator Research Organization

    2021/04 - 2026/03

  5. Development of evaluation methods for X-ray elastography

    Offer Organization: Japan Society of Medical Physics

    System: Research Project Assistance for Fiscal Year 2024

    2024/08 - 2026/02

Social Activities 6

  1. 朝日新聞朝刊, 青春スクロール母校群像記, 浦和第一女子高校(17),

    2024/02/10 - 2024/02/10

  2. 麗風セミナー（埼玉県立浦和第一女子高等学校）、進路指導講演会

    2022/10/03 - 2022/10/03

  3. ニュートン祭（東京学芸大学物理学教室、東京学芸大学物理同好会、及び東京学芸大学物理学教室同窓会）

    2021/12 -

  4. KEK Student Day, パネリスト

    2021/11 -

  5. TYLスクール理系女子キャンプ

    2020/09 -

  6. TYLスクール理系女子キャンプ

    2019/04 -

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