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Are stopping powers for C60 ions 60 times as large as those for C ions? - an approach by measuring secondary particles

Research Project

Project/Area Number 18K05005
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 31010:Nuclear engineering-related
Research InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

Narumi Kazumasa  国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 先進ビーム利用施設部, 次長 (90354927)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords阻止能 / C60イオン / スパッタリング / 二次電子放出
Outline of Final Research Achievements

Fullerene ions are expected to be a tool for highly dense energy transfer, which is much higher than those by heavy ions. However, for beam-application use, it is necessary to know physical quantities which relate closely to stopping powers for fullerene ions. In this study, sputtering yields of gold and amorphous carbon by fullerene ions have been measured systematically for the first time in the velocity range where nuclear collisions are dominant. It is observed that gold sputtering yields by C60 and C70 ions are approximately 120-240 and 140-280 times as high as those by C ions, respectively. The comparison with simulations reveals that the observed gold sputtering is due to nuclear collisions. In the case of amorphous carbon, on the other hand, it is demonstrated that the observed sputtering is due to electronic excitations though nuclear collisions are dominant in the velocity range where the measurement has been conducted.

Academic Significance and Societal Importance of the Research Achievements

イオンビーム利用研究は理論・実験両面での膨大な阻止能データ及びそれに密接に関連する物理量の蓄積の上に成り立っている。研究開始当初はフラーレンイオンにはそのようなデータがほぼ存在していなかった。本研究は、C60、C70イオンによる金及び非晶質炭素のスパッタリングについて、同じ速度領域におけるCイオンと比較できる形で系統的に観測結果を提示したことに、上記の観点で大きな意義がある。また、金属同様に電気伝導性を持つ非晶質炭素において、核的衝突が支配的な速度領域で電子励起に由来するスパッタリングのみが観測されることを示したことは、イオンビーム・固体相互作用研究の常識を覆しかねない成果である。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results)

  • [Journal Article] Sputtering Yields of Si Bombarded with 10-540-keV C60 Ions2022

    • Author(s)
      Narumi Kazumasa、Naramoto Hiroshi、Yamada Keisuke、Chiba Atsuya、Saitoh Yuichi
    • Journal Title

      Quantum Beam Science

      Volume: 6 Issue: 1 Pages: 12-12

    • DOI

      10.3390/qubs6010012

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] フラーレンイオン衝撃による炭素スパッタリング2024

    • Author(s)
      鳴海一雅 , 山田圭介 , 平野貴美 , 千葉敦也 , 齋藤勇一
    • Organizer
      日本物理学会2024年春季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Carbon Sputtering by C60- and C70-ion Bombardment2023

    • Author(s)
      Narumi Kazumasa , Yamada Keisuke , Hirano Yoshimi , Chiba Atsuya , Saito Yuuichi
    • Organizer
      21st International Conference on Radiation Effects in Insulators (REI-21)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フラーレンイオン衝撃によるスパッタリング2023

    • Author(s)
      鳴海一雅 , 山田圭介 , 平野貴美 , 千葉敦也 , 齋藤勇一
    • Organizer
      第33回日本MRS年次大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] C60、C70イオンによる炭素のスパッタリング2023

    • Author(s)
      鳴海一雅 , 平野貴美 , 山田圭介 , 千葉敦也 , 齋藤勇一
    • Organizer
      QST高崎サイエンスフェスタ2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Nonlinear effect on Au sputtering by C60- and C70-ion bombardment2022

    • Author(s)
      Narumi Kazumasa, Yamada Keisuke, Hirano Yoshimi, Chiba Atsuya, Yuri Yosuke, Saito Yuuichi
    • Organizer
      29th international conference on atomic collisions in solids and 11th international symposium on swift heavy ions in matter
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of Au sputtering yields by C60-ion bombardment2020

    • Author(s)
      鳴海 一雅、山田 圭介、平野 貴美、千葉 敦也、百合 庸介、齋藤 勇一
    • Organizer
      第21 回「イオンビームによる表面・界面の解析と改質」 応用物理学会薄膜・表面物理分科会 特別研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] C60イオン衝撃による金のスパッタリング収量の測定III2020

    • Author(s)
      鳴海 一雅、山田 圭介、平野 貴美、千葉 敦也、百合 庸介、齋藤 勇一
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] C60イオン衝撃による金のスパッタリング収量の測定II2020

    • Author(s)
      鳴海 一雅、山田 圭介、千葉 敦也、平野 貴美、百合庸介、斎藤 勇一
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Recent Activities with the Use of C60 Ion Beams in TIARA, QST/Takasaki2019

    • Author(s)
      鳴海 一雅、千葉 敦也、平野 貴美、山田 圭介、斎藤 勇一
    • Organizer
      The 24th International Conference on Ion-Surface Interactions (ISI-2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] C60イオン衝撃による金のスパッタリング収量の測定2019

    • Author(s)
      鳴海 一雅、山田 圭介、千葉 敦也、平野 貴美、斎藤 勇一
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Development of a highly-intense negative C60 ion source for a tandem accelerator and its applications2019

    • Author(s)
      鳴海 一雅、千葉 敦也、平野 貴美、山田 圭介、斎藤 勇一
    • Organizer
      The 23rd International Workshop on Inelastic Ion-Surface Collisions (IISC-23)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2018-04-23   Modified: 2025-01-30  

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