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Development of Ground-based Gamma-ray Telescopes for Galactic PeVatron Search

Research Project

Project/Area Number 17H04838
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionNagoya University

Principal Investigator

Okumura Akira  名古屋大学, 宇宙地球環境研究所, 講師 (90645011)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥25,610,000 (Direct Cost: ¥19,700,000、Indirect Cost: ¥5,910,000)
Fiscal Year 2018: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2017: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Keywords銀河宇宙線 / 超高エネルギーガンマ線 / チェレンコフ望遠鏡アレイ / 半導体光検出器 / ガンマ線天文学 / 宇宙線物理学 / ガンマ線 / 宇宙線
Outline of Final Research Achievements

In this research we achieved two main results for the Cherenkov Telescope Array (CTA) project, the next-generation ground-based gamma-ray observatory, to be built in 2020s. The first result is the successful completion of our prototype CTA camera with 2048 silicon photomultiplier camera pixels for the CTA small-sized telescopes. It was installed on a CTA prototype telescope in Italy, and its first light was achieved in 2019. The second result is gamma-ray detection of the Crab Nebula with another CTA prototype camera and telescope for the medium-sized telescopes, that use similar technologies but with a larger mirror diameter. These results are important milestones proving that our camera and telescope designs are viable for CTA.

Academic Significance and Societal Importance of the Research Achievements

本研究の目的は、銀河宇宙線をペタ電子ボルト(PeV)領域のエネルギーまで加速する銀河内天体、いわゆるPeVatronの発見を目指すガンマ線望遠鏡用の焦点面カメラを、チェレンコフ望遠鏡アレイ(CTA)計画の小口径望遠鏡のために開発することである。本研究では半導体光検出器や読み出し回路を新しく開発し、超高エネルギー宇宙線やガンマ線が大気中で光を発する現象を10億分の1秒毎に撮影する技術を成功させた。また同時に、Schwarzschild-Couder型光学系というこれまで実現したことのない複雑な光学系を持つ望遠鏡を建設し、チェレンコフ望遠鏡としての性能を実証した。

Report

(3 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (45 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (11 results) Journal Article (12 results) (of which Int'l Joint Research: 12 results,  Peer Reviewed: 12 results,  Open Access: 9 results) Presentation (18 results) (of which Int'l Joint Research: 3 results) Remarks (4 results)

  • [Int'l Joint Research] レスター大学/ダラム大学/オックスフォード大学(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] SLAC国立加速器研究所/カリフォルニア大学/ジョージア工科大学(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] マックスプランク核物理学研究所/DESY(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] アムステルダム大学(オランダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] アデレイド大学(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ウィスコンシン大学/ハワイ大学/カリフォルニア大学ロサンゼルス校(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] マックスプランク核物理学研究所/DESY/エアランゲン大学(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] レスター大学/オックスフォード大学/ダラム大学(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] アデレイド大学(オーストラリア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] パリ天文台(フランス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Study of the Cosmic Rays and Interstellar Medium in Local H i Clouds Using Fermi-LAT Gamma-Ray Observations2020

    • Author(s)
      Mizuno T.、Abdollahi S.、Fukui Y.、Hayashi K.、Koyama T.、Okumura A.、Tajima H.、Yamamoto H.
    • Journal Title

      The Astrophysical Journal

      Volume: 890 Issue: 2 Pages: 120-120

    • DOI

      10.3847/1538-4357/ab6a99

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Front-end electronics of the Compact High Energy Camera2020

    • Author(s)
      Leach S.A.、Lapington J.S.、Ross D.、Thornhill J.、Duffy C.、Funk S.、Zink A.、Jankowsky D.、White R.、Zorn J.、Tibaldo L.、Varner G.、Okumura A.、Tajima H.、Watson J.
    • Journal Title

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

      Volume: 952 Pages: 161746-161746

    • DOI

      10.1016/j.nima.2018.12.061

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Using Muon Rings for the Calibration of the Cherenkov Telescope Array: A Systematic Review of the Method and Its Potential Accuracy2019

    • Author(s)
      M. Gaug, S. Fegan, A. M. W. Mitchell, M. C. Maccarone, T. Mineo, and A. Okumura
    • Journal Title

      The Astrophysical Journal

      Volume: 243 Issue: 1 Pages: 11-11

    • DOI

      10.3847/1538-4365/ab2123

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterization of SiPM Optical Crosstalk and Its Dependence on the Protection-Window Thickness2019

    • Author(s)
      Yuki Nakamura, Akira Okumura, Hiroyasu Tajima, Nobuhito Yamane, and Anatolii Zenin
    • Journal Title

      JPS Conference Proceedings

      Volume: 27 Pages: 011003-011003

    • DOI

      10.7566/jpscp.27.011003

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of a UV-Transparent Lens Array for Enlarging the Effective Area of Multichannel SiPMs2019

    • Author(s)
      Akira Okumura, Akira Asano, Kazuhiro Furuta, Naoya Hidaka, Yuki Nakamura, Hiroyasu Tajima, and Anatolii Zenin
    • Journal Title

      JPS Conference Proceedings

      Volume: 27 Pages: 011009-011009

    • DOI

      10.7566/jpscp.27.011009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Monte Carlo studies for the optimisation of the Cherenkov Telescope Array layout2019

    • Author(s)
      Acharyya A. et la.
    • Journal Title

      Astroparticle Physics

      Volume: 111 Pages: 35-53

    • DOI

      10.1016/j.astropartphys.2019.04.001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fermi-LATγ-Ray Study of the Interstellar Medium and Cosmic Rays in the Chamaeleon Molecular Cloud Complex: A Look at the Dark Gas as Optically Thick H i2019

    • Author(s)
      Hayashi Katsuhiro、Mizuno Tsunefumi、Fukui Yasuo、Okamoto Ryuji、Yamamoto Hiroaki、Hidaka Naoya、Okumura Akira、Tajima Hiroyasu、Sano Hidetoshi
    • Journal Title

      The Astrophysical Journal

      Volume: 884 Issue: 2 Pages: 130-130

    • DOI

      10.3847/1538-4357/ab4351

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterization and assembly of near-ultraviolet SiPMs for the Schwarzschild-Couder medium-size telescope proposed for the CTA Observatory2019

    • Author(s)
      Adams Colin et al.
    • Journal Title

      Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXI

      Volume: - Pages: 13-13

    • DOI

      10.1117/12.2530617

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of silicon photomultipliers for dual-mirror Small-Sized Telescopes of Cherenkov Telescope Array2018

    • Author(s)
      Asano A.、Berge D.、Bonanno G.、Bryan M.、Gebhardt B.、Grillo A.、Hidaka N.、Kachru P.、Lapington J.、Leach S.、Nakamura Y.、Okumura A.、Romeo G.、Ross D.、Stephan M.、Tajima H.、Timpanaro M.C.、White R.、Yamane N.、Zink A.
    • Journal Title

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

      Volume: 912 Pages: 177-181

    • DOI

      10.1016/j.nima.2017.11.017

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterisation and testing of CHEC-M?A camera prototype for the small-sized telescopes of the Cherenkov telescope array2018

    • Author(s)
      Zorn J. et al.
    • Journal Title

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

      Volume: 904 Pages: 44-63

    • DOI

      10.1016/j.nima.2018.06.078

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] TARGET?5: A new multi-channel digitizer with triggering capabilities for gamma-ray atmospheric Cherenkov telescopes2017

    • Author(s)
      Albert A.、Funk S.、Katagiri H.、Kawashima T.、Murphy M.、Okumura A.、Quagliani R.、Sapozhnikov L.、Shigenaka A.、Tajima H.、Tibaldo L.、Vandenbroucke J.、Varner G.、Wu T.
    • Journal Title

      Astroparticle Physics

      Volume: 92 Pages: 49-61

    • DOI

      10.1016/j.astropartphys.2017.05.003

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prototyping hexagonal light concentrators using high-reflectance specular films for the large-sized telescopes of the Cherenkov Telescope Array2017

    • Author(s)
      Okumura A.、Dang T.V.、Ono S.、Tanaka S.、Hayashida M.、Hinton J.、Katagiri H.、Noda K.、Teshima M.、Yamamoto T.、Yoshida T.
    • Journal Title

      Journal of Instrumentation

      Volume: 12 Issue: 12 Pages: P12008-P12008

    • DOI

      10.1088/1748-0221/12/12/p12008

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] CTA報告164:小口径望遠鏡用SiPMの光検出効率の入射角度依存性2020

    • Author(s)
      奥村曉
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] SiPM保護膜のクロストーク低減への影響2020

    • Author(s)
      田島宏康
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] SiPM光検出効率の入射角度依存性の評価2019

    • Author(s)
      黒田裕介
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Evaluation of a multi-channel silicon photomultiplier with a light concentrator for Medium-Sized Telescopes of Cherenkov Telescope Array2019

    • Author(s)
      Anatolii Zenin
    • Organizer
      SiPM workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CTA report 152: Comparison of photon detection performance of photomultiplier tube and silicon photomultiplier for Medium Sized Telescopes2019

    • Author(s)
      Anatolii Zenin
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] SiPM の隣接画素オプティカルクロストークとその保護層厚依存性2019

    • Author(s)
      中村裕樹
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 紫外線透過レンズアレイによる アレイ型シリコン半導体光検出器の検出効率改善2019

    • Author(s)
      奥村曉
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 地上ガンマ線望遠鏡 CTA のための高効率な集光装置の試作2018

    • Author(s)
      奥村曉
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CTA報告136: ガンマ線望遠鏡CTAにおけるSiPMの多チャンネル同時較正システムの検証2018

    • Author(s)
      中村裕樹
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CTA報告135: CTA 小口径望遠鏡のトリガー性能の最適化2018

    • Author(s)
      佐々井義矩
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 次世代ガンマ線望遠鏡CTA用SiPMの低クロストーク化2018

    • Author(s)
      田島宏康
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CTA報告144: CTA 小口径望遠鏡用焦点面カメラの統合試験2018

    • Author(s)
      中村裕樹
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CTA報告145: Feasibility study on a future upgrade of PMT camera pixels with silicon photomultipliers2018

    • Author(s)
      Anatolii Zenin
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Development of a UV-transparent Lens Array Enlarging the Effective Area of Multi-channel SiPMs2018

    • Author(s)
      奥村曉
    • Organizer
      5th International Workshop on New Photon-Detectors (PD18)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of SiPM Optical Crosstalk and its Resin Thickness Dependence2018

    • Author(s)
      中村裕樹
    • Organizer
      5th International Workshop on New Photon-Detectors (PD18)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Schwarzschild-Couder 光学系を用いたCTA 小・中口径望遠鏡の開発2017

    • Author(s)
      奥村曉
    • Organizer
      日本天文学会 2017年秋季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CTA報告127: ガンマ線望遠鏡CTAにおけるSiPMの多チャンネル同時較正システムの確立と検証2017

    • Author(s)
      中村裕樹
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 次世代ガンマ線望遠鏡CTA用SiPMの最適化2017

    • Author(s)
      田島宏康
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Remarks] CTA 試作望遠鏡で「かに」星雲のガンマ線検出に成功

    • URL

      http://www.isee.nagoya-u.ac.jp/research-results/20200602.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 半導体光検出器を使ったCTA小口径望遠鏡の試作カメラによる試験観測が成功

    • URL

      http://www.isee.nagoya-u.ac.jp/research-results/cta-20190628.html

    • Related Report
      2018 Annual Research Report
  • [Remarks]

    • URL

      http://www.cta-observatory.jp/

    • Related Report
      2017 Annual Research Report
  • [Remarks]

    • URL

      https://www.cta-observatory.org

    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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