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Development of displacement damage model in super high energy region

Research Project

Project/Area Number 19H02652
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 InstitutionJapan Atomic Energy Agency

Principal Investigator

Iwamoto Yosuke  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 原子力基礎工学研究センター, マネージャー (10391327)

Co-Investigator(Kenkyū-buntansha) 吉田 誠  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (70379303)
松田 洋樹  国立研究開発法人量子科学技術研究開発機構, 次世代放射光施設整備開発センター, 主任技術員 (70782960)
明午 伸一郎  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J-PARCセンター, 研究主席 (80354728)
薮内 敦  京都大学, 複合原子力科学研究所, 助教 (90551367)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords原子弾き出し損傷 / PHITS / 陽子 / DPA / 高エネルギー / 弾き出し損傷 / 加速器 / 原子はじき出し / はじき出し断面積 / 陽子ビーム / 照射損傷 / 原子はじき出し数 / 弾き出し断面積 / 高エネルギー陽子 / 極低温 / 欠陥生成効率 / 高エネルギー陽子照射
Outline of Research at the Start

世界中で単位面積あたりの陽子の数を多くした(大強度化)、百GeVオーダーの超高エネルギーのビームを用いた素粒子物理実験施設の建設が計画されている。しかし、構造材等の交換頻度などを決定する、材料の寿命評価に必要な照射損傷量の計算モデルの検証・改良に必要な、原子はじき出しの起こしやすさを表す「はじき出し断面積」の実測データが全くない。そこで本研究では、独自に開発した小型極低温照射装置を用いて、120 GeV陽子照射による金属に対するはじき出し断面積を測定し、独自の照射損傷モデルを超高エネルギー領域に発展させる。本成果から材料の寿命評価が明確となり、陽子加速器施設の構造材等の安全な管理が可能となる。

Outline of Final Research Achievements

The number of atoms per target atom (DPA) is used as an indicator of the amount of irradiation damage in accelerator structural materials. In this study, the electrical resistance increase due to irradiation defects in Al, Cu, and W at cryogenic temperatures (4 K) was measured at the Fermi National Accelerator Laboratory using 120 GeV protons, which is related to DPA. The electrical resistance increase of the samples during proton irradiation was on the order of tens of nano- to micro ohm. The latest defect generation efficiency model was incorporated into the radiation behavior analysis code PHITS. The results show that the calculated values agree with the experimental values within an error range, and that the nuclear damage is almost invariant in the proton energy range from 1 to 120 GeV, so that the DPA and the associated ejection cross sections are almost the same.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、超高エネルギー領域の核破砕反応から生じる照射損傷メカニズム解明に繋がる新しい知見を得る創造性を持つ。実験値に基づく照射損傷モデルは、世界の大強度・高エネルギー陽子を用いた実験施設での標的等の交換頻度やビーム利用率の正確な評価が可能となり、損傷による加速器の放射線事故や機器の故障を未然に防ぐことができる。本成果により大強度陽子施設における標的等の安全な管理が可能となることで、ミュオンやニュートリノなどの二次粒子を利用した新しい極微の世界を探求する研究が推進される。その結果、物理学、生物学などの基礎科学の発展に貢献することが期待されるため、本研究は社会的に非常に大きな意義を持つ。

Report

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

    (18 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Int'l Joint Research] フェルミ国立加速器研究所(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] フェルミ国立加速器研究所(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] フェルミ国立加速器研究所(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] フェルミ国立加速器研究所(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Development of a method for calculating effective displacement damage doses in semiconductors and applications to space field2022

    • Author(s)
      Iwamoto Yosuke、Sato Tatsuhiko
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 11 Pages: e0276364-e0276364

    • DOI

      10.1371/journal.pone.0276364

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Repetitive Irradiation Tests at Cryogenic Temperature by Neutrons and Protons on Stabilizer Materials of Superconductor2022

    • Author(s)
      Yoshida M.、Nakamoto T.、Ogitsu T.、Xu Q.、Yoshiie T.、Meigo S.、Iwamoto Y.
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 32 Issue: 6 Pages: 1-5

    • DOI

      10.1109/tasc.2022.3178944

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of Innovative Materials and Measurement Systems used for Radiation Environment2022

    • Author(s)
      Eiichi Wakai, Yosuke Iwamoto, Kodai Toyota, Takashi Onizawa, Takashi Wakui, Tamaki Shibayama, Yuki Nakagawa, Koichi Sato, Taku Ishida, Shunsuke Makimura, Hiroyuki Noto
    • Journal Title

      Research & Development in Material Science

      Volume: 16 Issue: 4 Pages: 1859-1867

    • DOI

      10.31031/rdms.2022.16.000894

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental plan for displacement damage cross sections using 120-GeV protons at Fermi National Accelerator Laboratory2022

    • Author(s)
      Yosuke IWAMOTO, Makoto YOSHIDA, Shin-ichiro MEIGO, Katsuya YONEHARA, Taku ISHIDA, Keita NAKANO, Shin-ichiro ABE, Hiroki IWAMOTO, T. SPINA, K. AMMIGAN, N. MOKHOV, Atsushi YABUUCHI, Toshimasa YOSHIIE
    • Journal Title

      JAEA-Conf 2021-001

      Volume: INDC(JPN)-207 Pages: 138-143

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Benchmarking experiments of displacement cross-sections for high-energy proton irradiation with cryogenic-sample2021

    • Author(s)
      Iwamoto, Yosuke
    • Journal Title

      NEA/NSC/R(2021)2 (Internet)

      Volume: R(2021)2 Pages: 316-323

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Calculation of athermal recombination corrected dpa cross sections for proton, deuteron and heavy-ion irradiations using the PHITS code2020

    • Author(s)
      Iwamoto Yosuke、Meigo Shin-ichiro
    • Journal Title

      EPJ Web of Conferences

      Volume: 239 Pages: 20011-20011

    • DOI

      10.1051/epjconf/202023920011

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of reliable displacements-per-atom based on athermal-recombination-corrected model in radiation environments at nuclear fission, fusion, and accelerator facilities2020

    • Author(s)
      Iwamoto Yosuke、Meigo Shin-ichiro、Hashimoto Shintaro
    • Journal Title

      Journal of Nuclear Materials

      Volume: 538 Pages: 152261-152261

    • DOI

      10.1016/j.jnucmat.2020.152261

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Intercomparison of radiation damage calculations in target materials at proton accelerator facilities using the various Monte Carlo particle transport codes2022

    • Author(s)
      Yosuke Iwamoto, Francesco Cerutti, Robert Froeschl, Tommaso Lorenzon, Nikolai Mokhov, Francesc Salvat Pujol, Vasilis Vlachoudis, Lan Yao, Celik Yurdunaz
    • Organizer
      15th Workshop on Shielding aspects of Accelerators, Targets, and Irradiation Facilities (SATIF-15)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PHITSにおける材料の弾き出し損傷計算手法の開発と応用2021

    • Author(s)
      岩元 洋介
    • Organizer
      PHITSプロモーション動画公開記念オンラインセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 中性子および陽子入射のアルミニウムの弾き出し断面積2021

    • Author(s)
      明午 伸一郎, 松田 洋樹, 岩元 洋介, 中野 敬太
    • Organizer
      日本原子力学会2021年春の年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 8GeVおよび30GeV陽子における弾き出し断面積測定2020

    • Author(s)
      明午伸一郎, 松田洋樹, 岩元洋介, 吉田誠, 長谷川勝一, 中本建志, 牧村俊助, 前川藤夫, 岩元大樹, 石田卓
    • Organizer
      日本原子力学会秋の大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 様々な放射線環境下における最新の非熱的再結合補正モデルを考慮した材料のDPA計算2020

    • Author(s)
      岩元洋介, 明午伸一郎, 橋本慎太郎
    • Organizer
      日本原子力学会秋の大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 最新の欠陥再結合補正モデルを用いたイオン照射による原子炉構造材のはじき出し損傷計算2020

    • Author(s)
      岩元洋介
    • Organizer
      日本原子力学会春の年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Calculations of damage energy of nuclear reaction products and experimental plan for DPA cross section using 120 GeV protons at FNAL2019

    • Author(s)
      Y. Iwamoto, S. Hashimoto, M. Yoshida, H. Iwamoto, S. Meigo, K. Yonehara, T. Spina and P. Hurh
    • Organizer
      6th RaDIATE Collaboration Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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