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Study of a high-performance silicon detector with large sensitive area to search for cosmic-ray antiparticles

Research Project

Project/Area Number 17K14313
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionJapan Aerospace EXploration Agency

Principal Investigator

Kozai Masayoshi  国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 宇宙航空プロジェクト研究員 (60781739)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsシリコン検出器 / リチウムドリフト型シリコン / 大口径センサ / 反粒子 / 宇宙線 / 暗黒物質 / リーク電流 / 宇宙物理
Outline of Final Research Achievements

Cosmic-ray antiparticles are attractive as a key to unravel the modern physics questions. Antiparticle is a very slight component in the cosmic-ray flux, making it difficult to observe antiparticles with high accuracy. In this study, a new type silicon detector was developed aiming to search for cosmic-ray antiparticles with a high sensitivity. This new detector has both of a large active area and a thick sensitive layer. High operating temperature is also required to use in a flight environment. Noise-suppression method in high temperature is studied and demonstrated.

Academic Significance and Societal Importance of the Research Achievements

宇宙線の反粒子は観測が難しいものの、生成過程が限られるため、暗黒物質など現代物理の重要課題を解決する手がかりになると注目されている。本研究で開発した新型シリコン検出器を用いて、新たな観測法を採用し、これまでにない精度で宇宙線反粒子を観測する気球実験が計画されている。新たな観測法はこれまでの磁場による反粒子識別と大きく異なり、原子核物理の応用により反粒子を検出する。本研究の成果は高性能な新型検出器を開発しただけでなく、新たな反粒子観測法の実用化とそれによる宇宙物理の解明の足掛かりとなるものである。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Open Access: 3 results,  Peer Reviewed: 2 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] Massachusetts Institute of Technology/Columbia University(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Massachusetts Institute of Technology/Columbia University(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] The GAPS experiment - a search for cosmic-ray antinuclei from dark matter2020

    • Author(s)
      M. Kozai for the GAPS collaboration
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1468 Issue: 1 Pages: 1-4

    • DOI

      10.1088/1742-6596/1468/1/012049

    • Related Report
      2019 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Large-area Si(Li) detectors for X-ray spectrometry and particle tracking in the GAPS experiment2019

    • Author(s)
      Rogers F.、Xiao M.、Perez K.M.、Boggs S.、Erjavec T.、Fabris L.、Fuke H.、Hailey C.J.、Kozai M.、Lowell A.、Madden N.、Manghisoni M.、McBride S.、Re V.、Riceputi E.、Saffold N.、Shimizu Y.
    • Journal Title

      Journal of Instrumentation

      Volume: 14 Issue: 10 Pages: 1-16

    • DOI

      10.1088/1748-0221/14/10/p10009

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Developing a mass-production model of large-area Si(Li) detectors with high operating temperatures2019

    • Author(s)
      Kozai M.、Fuke H.、Yamada M.、Perez K.、Erjavec T.、Hailey C.J.、Madden N.、Rogers F.、Saffold N.、Seyler D.、Shimizu Y.、Tokuda K.、Xiao M.
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 947 Pages: 162695-162695

    • DOI

      10.1016/j.nima.2019.162695

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of Large-area Lithium-drifted Silicon Detectors for the GAPS Experiment2018

    • Author(s)
      M. Kozai, H. Fuke, M. Yamada, T. Erjavec, C. J. Hailey, C. Kato, N. Madden, K. Munakata, K. Perez, F. Rogers, N. Saffold, Y. Shimizu, K. Tokuda and M. Xiao
    • Journal Title

      Proceedings of 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference

      Volume: - Pages: 1-4

    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 宇宙線反粒子探索GAPS実験の現状報告 - 日本チームの進捗を中心として -2020

    • Author(s)
      小財正義 他
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] The GAPS experiment - a search for cosmic-ray antinuclei from dark matter2019

    • Author(s)
      M. Kozai for the GAPS collaboration
    • Organizer
      The 16th International Conference on Topics in Astroparticle and Underground Physics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 宇宙線反粒子探索GAPS計画に向けたラジエータ飛翔試験(2019年度-1)2019

    • Author(s)
      小財正義, 岡崎峻, 福家英之, 吉田哲也, 西城大, 河内明子, 近藤愛美, 竹内崇人, E. Martinez, N. Saffold, F. Gahbauer, C. Hailey, W. Craig, J. Olson
    • Organizer
      2019年度大気球シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] 宇宙線反粒子探索GAPS実験用リチウムドリフト型シリコン検出器の開発(3)2019

    • Author(s)
      小財 正義, 福家 英之, T. Erjavec, C.J. Hailey, 加藤 千尋, N. Madden, 宗像 一起, K. Perez, F. Rogers, N. Saffold, 清水 雄輝, M. Xiao
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 宇宙線反粒子探索GAPS実験用リチウムドリフト型シリコン検出器の開発(2)2018

    • Author(s)
      小財正義, 福家英之, 清水雄輝, 宗像一起, 加藤千尋, Charles J. Hailey, Kerstin Perez
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Development of Large-area Lithium-drifted Silicon Detectors for the GAPS Experiment2018

    • Author(s)
      M. Kozai, H. Fuke, M. Yamada, T. Erjavec, C. J. Hailey, C. Kato, N. Madden, K. Munakata, K. Perez, F. Rogers, N. Saffold, Y. Shimizu, K. Tokuda and M. Xiao
    • Organizer
      2018 IEEE Nuclear Science Symposium and Medical Imaging Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 宇宙線反粒子探索GAPS実験用リチウムドリフト型シリコン検出器の開発2018

    • Author(s)
      小財正義, 福家英之, 清水雄輝, 宗像一起, 加藤千尋, C. J. Hailey, K. Perez
    • Organizer
      第18回宇宙科学シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] 宇宙線反粒子探索GAPS実験用リチウムドリフト型シリコン検出器の開発2017

    • Author(s)
      小財正義, 福家英之, 清水雄輝, 宗像一起, 加藤千尋, C. J. Hailey, K. Perez
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-02-21  

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