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Development on non-destructive characterization of extraterrestrial materials including organics

Research Project

Project/Area Number 18H03739
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 17:Earth and planetary science and related fields
Research InstitutionOsaka University

Principal Investigator

Terada Kentaro  大阪大学, 大学院理学研究科, 教授 (20263668)

Co-Investigator(Kenkyū-buntansha) 佐藤 朗  大阪大学, 大学院理学研究科, 助教 (40362610)
友野 大  大阪大学, 核物理研究センター, 特任助教(常勤) (40415245)
新倉 潤  国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 協力研究員 (50644720)
河井 洋輔  大阪大学, 大学院理学研究科, 助教 (90726671)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2018: ¥23,010,000 (Direct Cost: ¥17,700,000、Indirect Cost: ¥5,310,000)
Keywordsミューオン / 特性X線分析 / 非破壊分析 / 隕石 / はやぶさ2 / 軽元素 / 有機物 / ミュオン / イメージング / 装置開発 / はやぶさ試料 / 3次元分析 / 非破壊元素分析 / はやぶさ / 地球外物質 / Muon / ミューオン特性X線分析 / 非破壊3次元分析 / 量子ビーム分析 / 加速器
Outline of Final Research Achievements

Aiming at the advancement of nondestructive analysis using elementary muons, we designed and fabricated a multi-wire drift chamber that detects the incident position of muon particles irradiating a sample to be measured. An X-ray spectrometer consisting of a high-purity Ge detector and a BGO Compton suppressor was also fabricated. As a result of experiments using the combination of these devices, we succeeded in obtaining images of the elemental distribution inside the sample with a position resolution of less than 1 mm. The white noise from Compton scattering was reduced by about 50-60%, and a significant signal of 0.5% carbon in the carbonaceous meteorite Allende, which could not be detected by Terada et al. (2014), was successfully detected.

Academic Significance and Societal Importance of the Research Achievements

素粒子ミューオンを用いた特性X線分析は、軽元素を含むほぼ全ての元素を非破壊で定量分析することができる革新的な技術である。本研究により、プロジェクト開始前と比べ、空間分解能が数cmから1mmへ、検出限界が1wt%から0.1wt%へと、劇的に向上した。これにより炭素質隕石中の炭素や窒素を有意に検出できるようになり、「有機物を含む地球外物質の完全非破壊キャラクタリゼーション」への道を拓いた。この非破壊3次元分析分析法は、地球外物質にとどまらず、考古学試料や重要文化財、リチウム電池のような産業機器の分析に応用できることから、多様な学術・応用分野の発展に大きく寄与できる。

Report

(5 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (14 results)

All 2023 2022 2019 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Remarks (2 results)

  • [Int'l Joint Research] ポール・シェラー研究所(スイス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] パウル・シェラー研究所(スイス)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Response of germanium detectors for high-energy γ-rays by 27Al(p, γ)28Si at Ep = 992 keV2023

    • Author(s)
      Rurie Mizuno, Megumi Niikura, Tokihiro Ikeda, Teiichiro Matsuzaki, Shintaro Go, Takeshi Y Saito, Shin’ichiro Michimasa, Hiroyoshi Sakurai
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: ptad055

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples2023

    • Author(s)
      Nakamura T.、Matsumoto M.、Amano K.、Enokido Y.、Zolensky M. E.、Mikouchi T.、Genda H.、Tanaka S.、Zolotov M. Y.、Kurosawa K. .. Yabuta H. ... et al.
    • Journal Title

      Science

      Volume: 379 Issue: 6634 Pages: 8671-8671

    • DOI

      10.1126/science.abn8671

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Response of germanium detectors for high-energy γ-rays by 27Al(p, γ)28Si at Ep = 992keV2023

    • Author(s)
      Mizuno Rurie、Niikura Megumi、Ikeda Tokihiro、Matsuzaki Teiichiro、Go Shintaro、Saito Takeshi Y、Michimasa Shin’ichiro、Sakurai Hiroyoshi
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: ptad55 Issue: 5

    • DOI

      10.1093/ptep/ptad055

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Muon特性X線を用いた小惑星リュウグウ試料の軽元素・ 非破壊分析2022

    • Author(s)
      寺田健太郎ほか
    • Organizer
      日本地球化学会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] Non-destructive analysis of C-type asteroid Ryugu using negative Muon: Determination of bulk chemistry of Ryugu samples2022

    • Author(s)
      Terada K. et al.
    • Organizer
      Hayabusa Symposium 2023
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-destructive analysis of C-type asteroid Ryugu using negative Muon: Determination of bulk chemistry of Ryugu samples2022

    • Author(s)
      Terada K. et al.
    • Organizer
      Hayabusa Symposium 2023(国際学会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] DEVELOPMENT ON NON-DESTRUCTIVE MUONIC X-RAY ANALYSIS OF CARBONACEOUS CHONDRITES: FEASIBILITY TEST FOR RETURNED SAMPLES FROM C-TYPE ASTEROIDS2019

    • Author(s)
      Terada K. et al.
    • Organizer
      The 82nd Annual Meeting of the Meteoritical Society
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Advanced Analytical methods for Planetary materials2019

    • Author(s)
      Terada K.
    • Organizer
      The 4th International Conference on Lunar and Deep Space Exploration (LDSE)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Advanced analytical methods for planetary science2019

    • Author(s)
      Terada K.
    • Organizer
      KOREA BASIC SCIENCE INSTITUE seminar
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] KAGUYA Observation of the terrestrial Oxygen transported to the Moon via ”Earth Wind”2019

    • Author(s)
      Terada K.
    • Organizer
      Korea Polar Research Institute (KOPRI)seminar
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Remarks] 素粒子ミューオンの連続ビームによる、 太陽系誕生時の有機物を含む隕石の非破壊分析に成功!

    • URL

      https://resou.osaka-u.ac.jp/ja/research/2017/20171113_1

    • Related Report
      2018 Annual Research Report
  • [Remarks] 人類が手にする物質を透視する新しい“眼” ~素粒子ミュオンを使った非破壊軽元素分析に成功~

    • URL

      https://resou.osaka-u.ac.jp/ja/research/2014/20140527_1

    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2024-01-30  

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