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Control on the response of radiation-induced phosphors for heavy charged particles

Research Project

Project/Area Number 18H01911
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 31010:Nuclear engineering-related
Research InstitutionTohoku University

Principal Investigator

Asai Keisuke  東北大学, 工学研究科, 教授 (60231859)

Co-Investigator(Kenkyū-buntansha) 越水 正典  東北大学, 工学研究科, 准教授 (40374962)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2018: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords重粒子線 / 線エネルギー付与 / シンチレータ / 熱蛍光体 / 励起状態間相互作用 / 輝尽蛍光 / 熱蛍光 / ラジオフォトルミネッセンス / 線量計 / エネルギー移動 / シンチレーション
Outline of Final Research Achievements

Unique energy deposition characteristics of heavy charged particles should be taken into account in the measurements of them. They deposit energy densely along their trajectories, and the energy density per unit length along the trajectory, i.e., linear energy tranfer (LET), is used to express the energy deposition characteristics. In this study, we revealed the basic processes responsible for the LET-dependent response of phosphors used for radiation detection. The LET-dependent of scintillators depends on the species of the excited states responsible for scintillation. On the contrary, in the case of thermally stimulated luminescence phosphors, the LET dependence can be controlled via the concentrations of the trap sites of electrons and holes.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた知見は、学術的には、重粒子線計測に用いる放射線誘起蛍光体において、所望のLET依存性を実現するための実験指針となる。このことは、重粒子線計測における技術的基盤となる。本研究を通じた重粒子線計測の高度化により、主に重粒子線治療における線量およびその分布の計測、あるいは正確なエネルギー付与計測は、重粒子線を用いた医療の高度化に資するものである。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (28 results)

All 2021 2020 2019

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results)

  • [Journal Article] "Neutron detection via thermoluminescence of Tb3+-doped Li2O-Al2O3-B2O3 glasses"2021

    • Author(s)
      Ichiro Kawamura, Hiroki Kawamoto, Yutaka Fujimoto, Masanori Koshimizu, Go Okada, Genichiro Wakabayashi, Mitsuhiro Nogami, Keitaro Hitomi, Kenichi Watanabe, Takayuki Yanagida, Keisuke Asai
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 60 Issue: 3 Pages: 036002-036002

    • DOI

      10.35848/1347-4065/abdf7d

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermoluminescence efficiency and glow curves of Cr-doped Al2O3 ceramic TLD for a wide linear energy transfer range2020

    • Author(s)
      Shimomura Risa、Koba Yusuke、Chang Weishan、Koshimizu Masanori、Fujimoto Yutaka、Kawamoto Hiroki、Maruyama Daiki、Matsumoto Kazuki、Ushiba Hiroaki、Andoh Takayuki、Shinsho Kiyomitsu
    • Journal Title

      Radiation Measurements

      Volume: 134 Pages: 106356-106356

    • DOI

      10.1016/j.radmeas.2020.106356

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] "Neutron detection via thermoluminescence of Ce3+-doped CaO-Al2O3-B2O3 glass"2020

    • Author(s)
      Ichiro Kawamura, Hiroki Kawamoto, Hiromi Kimura, Hajime Komiya, Yutaka Fujimoto, Masanori Koshimizu, Go Okada, Yusuke Koba, Ryo Ogawara, Mitsuru Suda, Genichiro Wakabayashi, Takayuki Yanagida, Keisuke Asai
    • Journal Title

      Mater. Technol.

      Volume: 印刷中 Issue: 12 Pages: 2063-2072

    • DOI

      10.1080/10667857.2020.1859050

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] "Thermoluminescence properties of Dy3+-doped CaO-Al2O3-B2O3 glasses for neutron detection"2020

    • Author(s)
      Ichiro Kawamura, Hiroki Kawamoto, Yutaka Fujimoto, Masanori Koshimizu, Go Okada, Yusuke Koba, Ryo Ogawara, Mitsuru Suda, Takayuki Yanagida, Keisuke Asai,
    • Journal Title

      Nucl. Instrum. Methods Phys. Res. B

      Volume: 468 Pages: 18-18

    • DOI

      10.1016/j.nimb.2020.02.015

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] "Effect of Linear Energy Transfer on the Scintillation Properties of Ce-doped Ca3B2O6 crystals"2020

    • Author(s)
      Masanori Koshimizu, Atsushi Kimura, Satoshi Kurashima, Mitsumasa Taguchi, Takayuki Yanagida, Yutaka Fujimoto, Keisuke Asai,
    • Journal Title

      Nucl. Instrum. Methods Phys. Res. B

      Volume: 印刷中

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neutron-induced thermoluminescence properties of Tb<sup>3+</sup>-doped CaO–Al<sub>2</sub>O<sub>3</sub>–B<sub>2</sub>O<sub>3</sub> glasses2019

    • Author(s)
      KAWAMURA Ichiro、KAWAMOTO Hiroki、FUJIMOTO Yutaka、KOSHIMIZU Masanori、OKADA Go、KOBA Yusuke、OGAWARA Ryo、YANAGIDA Takayuki、ASAI Keisuke
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 127 Issue: 10 Pages: 663-668

    • DOI

      10.2109/jcersj2.19071

    • NAID

      130007722527

    • ISSN
      1348-6535, 1882-0743
    • Year and Date
      2019-10-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of linear energy transfer on the scintillation properties of Ce:Gd3Al2Ga3O122019

    • Author(s)
      M. Koshimizu, S. Kurashima, A. Kimura, M. Taguchi, T. Yanagida, H. Yagi, T. Yanagitani, Y. Fujimoto, K. Asai
    • Journal Title

      Nucl. Instrtrum. Methods Phys. Res. B

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Scintillation properties and alpha-ray detection capabilities of thin-film plastic scintillators2019

    • Author(s)
      Masanori Koshimizu, Takayuki Yanagida, Ryoji Kamishima, Yutaka Fujimoto, Keisuke Asai
    • Journal Title

      Sensors and Mater.

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Dy3+添加Ca2B2O5焼結体におけるX線,粒子線,および熱中性子照射後の熱蛍光特性2021

    • Author(s)
      小宮基、河村一朗、川本弘樹、藤本裕、越水正典、岡田豪、古場裕介、若林源一郎、浅井圭介、
    • Organizer
      第35回 研究会「放射線検出器とその応用」
    • Related Report
      2020 Annual Research Report
  • [Presentation] 中性子計測素子開発を企図したCa2B2O5:Dy 焼結体の熱蛍光特性評価2021

    • Author(s)
      小宮基、河村一朗、川本弘樹、藤本裕、越水正典、浅井圭介、岡田豪、古場裕介、若林源一郎、
    • Organizer
      第 12 回日本セラミックス協会マテリアル・ファブリケーション・デザイン研究会ハイブリッドセミナー
    • Related Report
      2020 Annual Research Report
  • [Presentation] LiAlO2および LiGaO2のシンチレーションの LET依存性2021

    • Author(s)
      越水 正典、木村 敦、倉島 俊、田口 光正、柳田 健之、藤本 裕、浅井 圭介、
    • Organizer
      第 68 回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2,3-ビス(2, 4, 5-トリメチル-3-チエニル)マレイミドの He粒子線照射によるフォトクロミズム2021

    • Author(s)
      川本 弘樹、越水 正典、古場 裕介、藤本 裕、浅井 圭介、
    • Organizer
      第 68 回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 中性子線照射による Tb3+添加 Li2O- Al2O3- B2O3ガラスの熱蛍光2021

    • Author(s)
      河村 一朗、川本 弘樹、藤本 裕、越水 正典、岡田 豪、若林 源一郎、野上 光博、人見啓太朗、渡辺 賢一、柳田 健之、浅井 圭介、
    • Organizer
      第 68 回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] X 線,粒子線,および熱中性子照射による Ca2B2O5:Dy 焼結体の熱蛍光特性2021

    • Author(s)
      小宮 基、河村 一朗1川本 弘樹、藤本 裕、越水 正典、岡田 豪、古場 裕介、若林源一郎、浅井 圭介、
    • Organizer
      第 68 回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Tb3+添加Li2O-Al2O3-B2O3ガラスにおけるX線,重粒子線,および中性子照射後の熱蛍光2021

    • Author(s)
      河村 一朗、川本 弘樹、藤本 裕、越水 正典、野上 光博、人見 啓太朗、浅井 圭介、岡田 豪、若林 源一郎、渡辺 賢一、柳田 健之、
    • Organizer
      セラミックス協会2021年年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Dy3+ドープ Ca2B2O5焼結体における X 線,粒子線,および熱中性子照射後の熱蛍光特性2021

    • Author(s)
      小宮基、河村一朗、川本弘樹・藤本 裕、越水 正典、浅井 圭介、 岡田 豪、古場 裕介、 若林 源一郎、
    • Organizer
      セラミックス協会2021年年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Isomerization reaction of photochromic compounds induced by C ion beam irradiation2020

    • Author(s)
      Hiroki Kawamoto, Masanori Koshimizu, Yusuke Koba, Yutaka Fujimoto, Keisuke Asai,
    • Organizer
      The 8th Asia Pacific Symposium on Radiation Chemistry (APSRC2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] X 線およひ熱中性子照射によるCa2B2O5:C焼結体の熱蛍光特性2020

    • Author(s)
      小宮 基, 河村 一朗, 藤本 裕, 越水 正典, 若林 源 一郎, 浅井 圭介、
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Tb3+添加 Li2O-Al2O3-B2O3ガラスの熱蛍光を利用した中性子検出2020

    • Author(s)
      河村一朗、川本弘樹、藤本裕、越水正典、岡田豪、野上光博、人見啓太郎、 渡辺賢一、柳田健之、浅井圭介、
    • Organizer
      第 40 回電子材料研究討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] X線,粒子線,および熱中性子照射後の Ca2B2O5:Ce焼結体の熱蛍光特性2020

    • Author(s)
      小宮基、河村一朗、川本弘樹、藤本裕、越水正典、岡田豪、古場裕介、 若林源一郎、浅井圭介、
    • Organizer
      第 40 回電子材料研究討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] He 粒子線照射による 2,3-ビス(2,4,5-トリメチル-3-チエニル)マレイミド の異性化反応誘起2020

    • Author(s)
      川本 弘樹、越水 正典、古 裕介、藤本 裕、浅井 圭介、
    • Organizer
      第 63 回放射線化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] "Excitation density effects on scintillation properties of Li-based scintillators for neutron detection"2020

    • Author(s)
      M. Koshimizu, A. Kimura, S. Kurashima, M. Taguchi, T. Yanagida, Y. Fujimoto, K. Asai,
    • Organizer
      44rd International Conference & Exposition on Advanced Ceramics & Composites
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] "Development of Novel Inorganic Scintillators and Analysis of the Excited States Dynamics Responsible for Scintillation"2019

    • Author(s)
      Masanori Koshimizu,
    • Organizer
      The International Conference on Information Optics and Photonics 2019 (CIOP 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] "Effects of linear energy transfer on scintillation properties of Ce-doped Ca3B2O6 scintillator"2019

    • Author(s)
      Masanori Koshimizu, A. Kimura, S. Kurashima, M. Taguchi, T. Yanagida, Y. Fujimoto, K. Asai,
    • Organizer
      20th International conference on Radiation Effects in Insulators (REI-20)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] "Excitation density effects on scintillator properties of organic-inorganic layered perovscite-type compounds"2019

    • Author(s)
      Masanori Koshimizu, N. Kawano, A. Kimura, S. Kurashima, M. Taguchi, Y. Fujimoto, K. Asai,
    • Organizer
      20th International conference on Radiation Effects in Insulators (REI-20)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] " LET-dependent thermoluminescence of Y3Al5O12:Ce "2019

    • Author(s)
      Masanori Koshimizu, Go Okada, Yuho Hirata, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Kenichi Watanabe, Yusuke Koba, Yutaka Fujimoto, Takayuki Yanagida,Keisuke Asai,
    • Organizer
      The 19th International Conference on Solid State Dosimetry (SSD19)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] " Excitation density effects on the scintillation properties of CdWO4 "2019

    • Author(s)
      Masanori Koshimizu, Satoshi Kurashima, Atsushi Kimura, Mitsumasa Taguchi, Takayuki Yanagida, Yutaka Fujimoto, Keisuke Asai,
    • Organizer
      The 19th International Conference on Solid State Dosimetry (SSD19)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 「有機無機ペロブスカイト型化合物のシンチレーションにおけるLET依存性」2019

    • Author(s)
      越水 正典、河野 直樹、木村 敦、倉島 俊、田口 光正、藤本 裕、浅井 圭介
    • Organizer
      2019年第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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