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An establishment of new technique to observe ultra-high energy cosmic rays with new-type fluorescence telescopes

Research Project

Project/Area Number 15H05443
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKyoto University (2018)
The University of Tokyo (2015-2017)

Principal Investigator

Fujii Toshihiro  京都大学, 白眉センター, 特定助教 (50706877)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥23,140,000 (Direct Cost: ¥17,800,000、Indirect Cost: ¥5,340,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2015: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Keywords宇宙線 / 極高エネルギー / 空気シャワー / 大気蛍光 / テレスコープアレイ実験 / FAST実験 / 宇宙線観測 / 大気蛍光望遠鏡
Outline of Final Research Achievements

For the sake of a development for next-generation observatories to detect ultrahigh-energy cosmic rays, we constructed an economical and simplified fluorescence detector consisting of a segmented mirror in a diameter of 1.6 m and four 20-cm photomultiplier tubes at its focal plane. Total three telescopes have been installed at the Telescope Array site in Utah, USA. The stable observation was established via remote controlling from Japan. In data analysis, we clarified a performance of new fluorescence detectors using cosmic-ray events and vertical ultraviolet lasers in a time coincidence between Telescope Array fluorescence detectors and new ones.

Academic Significance and Societal Importance of the Research Achievements

極高エネルギー宇宙線は宇宙空間で最も高いエネルギーを有する宇宙線であり、その起源には宇宙空間における極限物理現象が深く関連していると推測されているが、その起源および加速機構は全く明らかになっていない。本研究では、極高エネルギー宇宙線への感度を10倍に増やすため、極高エネルギー宇宙線観測に特化し、必要最低限な機能のみを実装した低コスト型の新型大気蛍光望遠鏡を開発している。将来計画では、この低コスト型の望遠鏡を広範囲に展開することで極高エネルギー宇宙線の年間観測事象数を10倍に増やし、宇宙空間最大の加速機構の解明を目指す。

Report

(4 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (23 results)

All 2018 2017 2016 2015 Other

All Journal Article (6 results) (of which Int'l Joint Research: 6 results,  Open Access: 4 results,  Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (15 results) (of which Int'l Joint Research: 9 results,  Invited: 4 results) Remarks (2 results)

  • [Journal Article] First results from the full-scale prototype for the Fluorescence detector Array of Single-pixel Telescopes2017

    • Author(s)
      T. Fujii for the FAST Collaboration
    • Journal Title

      Proc. of 35th International Cosmic Ray Conference

      Volume: ICRC2017 Pages: 468-468

    • Related Report
      2017 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] A systematic uncertainty on the energy scale of the Telescope Array fluorescence detectors2017

    • Author(s)
      T. Fujii for the Telescope Array Collaboration
    • Journal Title

      Proc. of 35th International Cosmic Ray Conference

      Volume: ICRC2017 Pages: 524-524

    • Related Report
      2017 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] The prototype opto-mechanical system for the Fluorescence detector Array of Single-pixel Telescopes2017

    • Author(s)
      D. Mandat, T. Fujii (9/19) et al.
    • Journal Title

      Journal of Instrumentation

      Volume: 12 Issue: 07 Pages: T07001-T07001

    • DOI

      10.1088/1748-0221/12/07/t07001

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of a Prototype for the Fluorescence Detector Array of Single-Pixel Telescopes2016

    • Author(s)
      T. Fujii et al.
    • Journal Title

      Proc. of International Symposium for Ultra-High Energy Cosmic Rays (UHECR2014)

      Volume: 9 Pages: 010017-010017

    • DOI

      10.7566/jpscp.9.010017

    • Related Report
      2015 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Detection of ultra-high energy cosmic ray showers with a single-pixel fluorescence telescope2016

    • Author(s)
      T. Fujii et al.
    • Journal Title

      Astroparticle Physics

      Volume: 74 Pages: 64-72

    • DOI

      10.1016/j.astropartphys.2015.10.006

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First Results from a Prototype of the Fluorescence Detector Array of Single-pixel Telescopes2015

    • Author(s)
      T. Fujii et al.
    • Journal Title

      Proc. of 34th International Cosmic Ray Conference

      Volume: ICRC2015 Pages: 323-323

    • Related Report
      2015 Annual Research Report
    • Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 大気蛍光望遠鏡による極高エネルギー宇宙線スペクトルの研究2018

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会 第73回年次大会 若手奨励賞受賞記念講演
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] FAST実験5:新型大気蛍光望遠鏡の遠隔運用と宇宙線観測報告2017

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会2017秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] First results from the full-scale prototype for the Fluorescence detector Array of Single-pixel Telescopes2017

    • Author(s)
      Toshihiro Fujii for the FAST collaboration
    • Organizer
      35th International Cosmic Ray Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A systematic uncertainty on the energy scale of the Telescope Array fluorescence detectors2017

    • Author(s)
      Toshihiro Fujii for the Telescope Array collaboration
    • Organizer
      35th International Cosmic Ray Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FAST実験4:新型大気蛍光望遠鏡による極高エネルギー宇宙線観測報告2017

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会 第72回年次大会 大阪大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] FAST実験2:新型大気蛍光望遠鏡の性能評価2016

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学(宮城県仙台市)
    • Year and Date
      2016-03-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] Next-Generation Observatory: Fluorescence detector Array of Single-pixel Telescopes2016

    • Author(s)
      Toshihiro Fujii
    • Organizer
      KICP Workshop: Next-Generation Techniques for UHE Astroparticle Physics 2016
    • Place of Presentation
      Chicago (USA)
    • Year and Date
      2016-02-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] FAST実験3:新型大気蛍光望遠鏡の試験観測報告2016

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会 2016年秋季大会 宇都宮大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] The full-scale prototype for the Fluorescence detector Array of Single-pixel Telescopes2016

    • Author(s)
      Toshihiro Fujii et al.
    • Organizer
      2016 International Conference on Ultra-High Energy Cosmic Rays
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cosmic rays and Cosmic ray Air-Shower Detectors2016

    • Author(s)
      Toshihiro Fujii
    • Organizer
      Recent Discoveries in Particle and Astroparticle Physics
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The FAST project - Next Generation UHECR Observatory -2016

    • Author(s)
      Toshihiro Fujii
    • Organizer
      Roma International Conference on Astroparticle Physics
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Future Prospects on UHECR and UHE Photon2016

    • Author(s)
      Toshihiro Fujii
    • Organizer
      Multi-messenger Approaches to Cosmic Rays: Origin and Space Frontiers
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fluorescence detector Array of Single-pixel Telescopes (FAST) project2015

    • Author(s)
      Toshihiro Fujii
    • Organizer
      TeV Particle Astrophysics 2015
    • Place of Presentation
      柏の葉カンファレンスセンター(千葉県柏市)
    • Year and Date
      2015-10-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FAST実験1:全体計画と新型大気蛍光望遠鏡の開発2015

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      大阪市立大学(大阪府大阪市)
    • Year and Date
      2015-09-26
    • Related Report
      2015 Annual Research Report
  • [Presentation] First results from a prototype for the Fluorescence detector Array of Single-pixel Telescopes2015

    • Author(s)
      Toshihiro Fujii
    • Organizer
      34th International Cosmic Ray Conference
    • Place of Presentation
      Hague (Netherlands)
    • Year and Date
      2015-08-04
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 宇宙極限事象解明する新たな目 次世代の天文学「極高エネルギー宇宙線天文学」への挑戦

    • URL

      https://www.fast-project.org

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
  • [Remarks] 宇宙極限事象解明する新たな目 次世代の天文学「極高エネルギー宇宙線天文学」への挑戦

    • URL

      http://www.fast-project.org

    • Related Report
      2015 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2020-03-30  

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