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  • slidebg1
    Radiation imaging and measurement
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    藤原
    Takeshi Fujiwara


藤原 健


Takeshi Fujiwara

国立研究開発法人 産業技術総合研究所
計量標準総合センター 分析計測標準研究部門
放射線イメージング計測研究グループ
主任研究員


Senior Reseacher
Research Institute for Measurement and Analytical Instrumentation,
National Institute of Advanced Industrial Science and Technology (AIST),
Tsukuba, Ibaraki, Japan

研究略歴

  • 2009 東京大学大学院工学系研究科原子力国際専攻 博士課程修了(工学)
  • 2009 - 2010 東京大学大学院工学系研究科原子力国際専攻 特任研究員
  • 2010 - 2015 東京大学大学院工学系研究科原子力専攻 助教
  • 2015 - 2019 産業技術総合研究所 分析計測標準研究部門 研究員
  • 2019 - 現在 産業技術総合研究所 分析計測標準研究部門 主任研究員(現職)

その他活動

  • 2014 - 現在 理化学研究所 客員研究員
  • 2016 - 現在 東京大学物性研 委嘱研究員
  • 2019 - 現在 静岡大学電子工学研究所 客員准教授

Research career

Other works

  • 2014 - current Visiting researcher at RIKEN
  • 2016 - current Visiting researcher at University of Tokyo (ISSP)
  • 2016 - current Visiting Associate Professor at Shizuoka University (Research Institute of Electronics)


所属学会

  • 応用物理学会
  • 日本中性子科学会

  • 2012 - 2014 応用物理学会放射線分科会 幹事
  • 2016 - 2018 応用物理学会放射線分科会 編集常任幹事
  • 2016 - 2018 中性子科学会 広報幹事
  • 2016 - 2020 中性子科学会中性子基盤技術部会 幹事
  • 2018 - 2020 応用物理学会放射線分科会 副幹事長
  • 2020 - 現在 中性子科学会 編集委員
  • 2020 - 現在 原子力学会 北関東支部若手研究会実行委員

受賞歴

  • 電気学会 優秀論文発表賞A賞 (2011)
  • MPGD2013 (MPGD2013) Georges Charpak’s Young Scientist Award(2013)
  • 応用物理学会 - 講演奨励賞(2015)
  • 第60回放射線化学討論会 - 若手ポスター発表部門 (2017)
  • 応用物理学会放射線分科会 - 放射線奨励賞 (2018)
  • 日本プラントメンテナンス協会 - 2018年度TPM優秀商品賞開発賞 (2018)
  • 日本中性子科学会 - 技術賞 (2019)

News

適宜情報発信していきます

Publications

原著論文

My publication list (Google shcolar)




  1. T. Fujiwara,I. Kawamura, Y. Fujimoto, G. Okada, and M. Koshimizu,
    "Tailor-made 3D dosimeter using 3D printing technology",
    Radiation measurements, Vol. 135, pp. 106376. (2020)
    doi.org/10.1016/j.radmeas.2020.106376

  2. B.E. O'Rourke, T. Fujiwara, K. Furukawa, M. Furusaka, N. Hayashizaki, K. Kino, R. Kuroda, K. Michishio, T. Muroga, K. Nigorikawa, T. Obina, H. Ogawa, N. Oshima, D. Satoh, N. Sei, T. Shishido, R. Suzuki, M. Tanaka, Y. Tomota, H. Toyokawa, and A. Watazu,
    “Design and construction of an electron accelerator for a pulsed neutron facility at AIST,
    Nucl. Instrum. Methods Phys. Res. B, Vol. 464, pp. 41-44. (2020)
    doi:10.1016/j.nimb.2019.11.041.

  3. T. Fujiwara, Y. Mitsuya, T. Fushie, T. Aoki,
    "Demonstration of Soft X-ray 3D Scanning and Modeling with a Glass Gas Electron Multiplier",
    J. Inst., Vol. 14, pp. P11022–P110022. (2019)
    doi.org/10.1088/1748-0221/14/11/P11022

  4. K. Kino, T. Fujiwara, M. Furusaka, N. Hayashizaki, R. Kuroda, K. Michishio, T. Muroga, H. Ogawa, B. E.O’Rourke, N. Oshima, D. Satoh, N. Sei, T. Shishido, R. Suzuki, M. Tanaka, H. Toyokawa, A. Watazu,
    “Design of a compact electron accelerator-driven pulsed neutron facility at AIST,
    Nucl. Instrum. Methods Phys. Res. A, Vol. 927, pp. 407-418. (2019)
    doi.org/10.1016/j.nima.2019.02.062

  5. Y. Mitsuya, T. Fujiwara, H. Takahashi, M. Uesaka,
    “X-ray imaging demonstration of glass GEM detector with dynamic time-over-threshold-based readout,
    J. Inst., Vol. 13, pp. P12023–P12023. (2018)
    doi:10.1088/1748-0221/13/12/P12023.

  6. T. Fujiwara, Y. Mitsuya, and H. Takahashi,
    “Radiation imaging with glass gas electron multipliers (G−GEMs),”
    Nucl. Instrum. Methods Phys. Res. A, Vol. 878, pp. 40-49, (2018)
    https://doi.org/10.1016/j.nima.2017.09.010

  7. Y. Mitsuya, H. Miyoshi, T. Fujiwara, M. Uesaka, H. Takahashi
    “Gaseous flat-panel detector with glass gas electron multiplier coupled with micro-photodiode array
    Nucl. Instrum. Methods Phys. Res. A, Vol. 873, pp. 56-58, (2017)
    https://doi.org/10.1016/j.nima.2017.05.040

  8. T. Fujiwara, Y. Mitsuya, T. Fushie, K. Murata, A. Kawamura, A. Koishikawa, H. Toyokawa, and H. Takahashi,
    “Gas scintillation glass GEM detector for high-resolution X-ray imaging and CT,”
    Nucl. Instrum. Methods Phys. Res. A, vol. 850, pp. 7–11, (2017)
    https://doi.org/10.1016/j.nima.2017.01.013

  9. T. Fujiwara, Y. Mitsuya, and H. Toyokawa,
    “Fine-pitch glass GEM for high-resolution X-ray imaging,”
    J. Inst., vol. 11, no. 12, pp. C12050–C12050, Dec. 2016.
    https://doi.org/10.1088/1748-0221/11/12/C12050

  10. T. Fujiwara, U. Bautista, Y. Mitsuya, H. Takahashi, N. L. Yamada, Y. Otake, A. Taketani, M. Uesaka, and H. Toyokawa,
    “Microstructured boron foil scintillating G-GEM detector for neutron imaging,”
    Nucl. Instrum. Methods Phys. Res. A, vol. 838, pp. 124–128, (2016)
    DOI: 10.1016/j.nima.2016.09.005

  11. T. Fujiwara, Y. Mitsuya, T. Yanagida, T. Saito, H. Toyokawa, H. Takahashi,
    High-photon-yield scintillation detector with Ar/CF 4and glass gas electron multiplier,
    Jpn. J. Appl. Phys. 55 (2016) 106401. (2016)
    doi:10.7567/JJAP.55.106401.

  12. Y. Tian, K. Shimazoe, X. Yan, O. Ueda, T. Ishikura, T. Fujiwara, M. Uesaka, M. Ohno, H. Tomita, Y. Yoshihara, H. Takahashi,
    High energy X-ray photon counting imaging using linear accelerator and silicon strip detectors,
    Nucl. Instrum. Methods Phys. Res. A 830 (2016) 251–255. (2015)
    doi:10.1016/j.nima.2016.05.108.

  13. Y. Mitsuya, T. Fujiwara, T. Fushie, T. Maekawa, H. Takahashi,
    Development of large-area glass GEM,
    Nucl. Instrum. Methods Phys. Res. A (2015) 156–159. (2015)
    doi:10.1016/j.nima.2015.05.039.

  14. X. Xiaosong, Y. TIAN, K. Shimazoe, T. Fujiwara, H. Takahashi,
    Development of X-ray/Gamma-Ray Imaging System Based on Hydrogenated Amorphous Silicon/Crystalline Silicon Heterojunction Strip Detector,
    Radioisotopes. 64 (2015) 729–735.
    doi:10.3769/radioisotopes.64.729.

  15. M. Uesaka, K. Dobashi, T. Fujiwara, C. Pei, W. Wu, J. Kusano, et al.,
    On-site nondestructive inspection by upgraded portable 950 keV/3.95 MeV X-band linac x-ray sources,
    J. Phys. B: at. Mol. Opt. Phys. 47 (2014) 234008.
    doi:10.1088/0953-4075/47/23/234008.

  16. T. Fujiwara, Y. Mitsuya, H. Takahashi, T. Fushie, S. Kishimito, B. Guerard, M. Uesaka,
    The performance of Glass GEM,
    J. Inst. 9 (2014) P11007–P11007.
    doi:10.1088/1748-0221/9/11/P11007.

  17. Y. Mitsuya, T. Fujiwara, H. Takahashi, T. Fushie,
    A new glass GEM with a single-sided guard-ring structure,
    J Nucl Sci Technol. 51 (2014) 639–644.
    doi:10.1080/00223131.2014.884954.

  18. T. Fujiwara, S. Tanaka, Y. Mitsuya, H. Takahashi, K. Tagi, J. Kusano, et al.,
    Development of a scintillating G-GEM detector for a 6-MeV X-band Linac for medical applications,
    J. Inst. 8 (2013) C12020–C12020.
    doi:10.1088/1748-0221/8/12/C12020.

  19. W. Wu, H. Zhu, M. Jin, K. Dobashi, T. Fujiwara, M. Uesaka, et al.,
    Partial CT and Structural Analysis with 950 Kev/3.95 Mev X-Band Linac X-Ray Sources,
    E-Journal of Advanced Maintenance. 2 (2013) 121–127.

  20. M. Uesaka, M. Jin, W. Wu, K. Dobashi, T. Fujiwara, J. Kusano, et al.,
    Commissioning of portable 950 keV/3.95MeV X-band linac X-ray sources for on-site transmission testing,
    E-Journal of Advanced Maintenance. 5 (2013) pp.93–100

  21. Y. Mitsuya, T. Fujiwara, H. Takahashi,
    Characteristics of a glass gem with a guard-ring structure,
    J. Inst. 8 (2013) C11018–C11018.
    doi:10.1088/1748-0221/8/11/C11018.

  22. H. Takahashi, Y. Mitsuya, T. Fujiwara, T. Fushie,
    Development of a glass GEM,
    Nucl. Instrum. Methods Phys. Res. A 724 (2013) 1–4.
    doi:10.1016/j.nima.2013.04.089.

  23. T. Fujiwara, H. Takahashi, T. Yanagida, K. Kamada, K. Fukuda, N. Kawaguchi, N. L. Yamada, M. Furusaka, K. Watanabe, Y. Fujimoto, M. Uesaka.,
    Study on Ce:LiCAF scintillator for 3He alternative detector,
    Neutron News. 23 (2012) 31–34.
    doi:10.1080/10448632.2012.725335.

  24. T. Fujiwara, T. Saito, Y. Muroya, H. Sawahata, Y. Yamashita, S. Nagasaki, K. Okamoto, H. Takahashi, M. Uesaka, Y. Katsumura, S. Tanaka,
    Isotopic ratio and vertical distribution of radionuclides in soil affected by the accident of Fukushima Dai-ichi nuclear power plants,
    Journal of Environmental Radioactivity. 113 (2012) 37–44.
    doi:10.1016/j.jenvrad.2012.04.007.

  25. Y. Miyake, H. Matsuzaki, T. Fujiwara, T. Saito, T. Yamagata, M. Honda, et al.,
    Isotopic ratio of radioactive iodine (129 I/131 I) released from Fukushima Daiichi NPP accident,
    Geochemical Journal. 46 (2012) 327 to 333.

  26. N.L. Yamada, N. Torikai, K. Mitamura, H. Sagehashi, S. Sato, H. Seto, et al.,
    Design and performance of horizontal-type neutron reflectometer SOFIA at J-PARC/MLF,
    Eur. Phys. J. Plus. 126 (2011) 108–13.
    doi:10.1140/epjp/i2011-11108-7.

  27. M. Uesaka, T. Natsui, K. Lee, K. Dobashi, T. Yamamoto, T. Fujiwara, H. Zhu, K. Demachi, E. Tanabe, M. Yamamoto, N. Nakamura, J. Kusano, T. Higo, S. Fukuda, M. Yoshida, S. Matsumoto,
    950keV, 3.95MeV and 6MeV X-band linacs for nondestructive evaluation and medicine,
    Nucl. Instrum. Methods Phys. Res. A 657 (2011) 82–87.
    doi:10.1016/j.nima.2011.07.026.

  28. T. Orita, H. Takahashi, K. Shimazoe, T. Fujiwara, S. Boxuan,
    A new pulse width signal processing with delay-line and non-linear circuit (for ToT),
    Nucl. Instrum. Methods Phys. Res. A 648 (2011) S24–S27.
    doi:10.1016/j.nima.2011.01.023.

  29. H. Takahashi, K. Fujita, T. Fujiwara, H. Niko, B. Guérard, F. Fraga,
    The transparent microstrip gas counter,
    Nucl. Instrum. Methods Phys. Res. A 623 (2010) 123–125.
    doi:10.1016/j.nima.2010.02.169.

  30. T. Fujiwara, H. Takahashi,
    Multi-level time-over-threshold method for energy resolving multi-channel systems,
    IEEE Transactions on Nuclear Science. 57 (2010) 2545–2548.
    doi:10.1109/TNS.2010.2061236.

Proceedings

プロシーディングス


  1. M. Uesaka, K. Demachi, T. Fujiwara, K. Dobashi, H. Fujisawa, R.B. Chhatkuli, et al.,
    Development and application of compact and on-chip electron linear accelerators for dynamic tracking cancer therapy and DNA damage/repair analysis,
    IOP Conf. Ser.: Mater. Sci. Eng. 79 (2015) 012015.
    doi:10.1088/1757-899X/79/1/012015.

  2. M. Uesaka, K. Tagi, K. Dobashi, T. Fujiwara, M. Yamamoto, H. Harada, 30 MeV X-band Electron Linac Neutron Source for Nuclear Data Study for Fukushima Accident Analysis, Physics Procedia. 60 (2014) 193–202. doi:10.1016/j.phpro.2014.11.028.

  3. Y. Mitsuya, T. Fujiwara, H. Takahashi, Further study of Glass GEM, IEEE, 2013. doi:10.1109/NSSMIC.2013.6829413.

  4. T. Fujiwara, H. Takahashi, B. Shi, N. Torikai, N.L. Yamada, M. Uesaka, 2-Dimensional He-3 M-MSGC with floating pads, in: 2010 IEEE Nuclear Science Symposium and Medical Imaging Conference (2010 NSS/MIC), IEEE, 2010: pp. 128–130. doi:10.1109/NSSMIC.2010.5873730.

  5. K. Shimazoe, H. Takahashi, T. Fujiwara, T. Furumiya, J. Ooi, Y. Kumazawa, 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), in: 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009), IEEE, 2009: pp. 1916–1918. doi:10.1109/NSSMIC.2009.5402168.

  6. B. Shi, K. Shimazoe, T. Fujiwara, H. Takahashi, Application of Time-over-Threshold readout method to Micro Strip Gas Chamber, in: 2009: pp. 419–421. doi:10.1109/NSSMIC.2009.5401666.

  7. T. Fujiwara, H. Takahashi, A new multi-level time over threshold method for energy resolving multi-channel systems, in: 2008 IEEE Nuclear Science Symposium and Medical Imaging Conference (2008 NSS/MIC), IEEE, 2008: pp. 3413–3415. doi:10.1109/NSSMIC.2008.4775074.

  8. B. Shi, K. Shimazoe, T. Fujiwara, H. Takahashi, J. Ooi, Y. Kumazawa, Development of waveform multiplexing CMOS ASIC with decay time modulation for pixellated detectors, 2008 IEEE Nuclear Science Symposium and Medical Imaging Conference (2008 NSS/MIC). (2008) 1827–1829. doi:10.1109/NSSMIC.2008.4774747.

  9. J. Bachrach, J. Beal, T. Fujiwara, Continuous Space-Time Semantics Allow Adaptive Program Execution, IEEE, 2007. doi:10.1109/SASO.2007.14.

Research

研究内容

研究プロジェクト

これまで参画してきた研究プロジェクトです。

2016・NEDO

2016 ・NEDO 2015 2014 2013 2012 2011 2010 2009

Contact

研究内容にご興味ある方はこちらよりお問い合わせください

〒305-8568
茨城県つくば市梅園1−1−1

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