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Elucidation study of radiation interaction of microscopic complex systems in ion track core

Research Project

Project/Area Number 17K07022
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

KAI Takeshi  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, 研究副主幹 (70403037)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords放射線工学・ビーム科学 / イオン飛跡 / DNA損傷
Outline of Final Research Achievements

A general purpose particle transport simulation code, PHITS is expected to apply dose evaluation in macroscopic systems as well as radiation interaction investigation in nanoscale for study of interaction between radiations and materials. Although the interaction itself is micro physical phenomena in material, the interactions of the low energy electrons have included much unknown factors. In this study, we developed track structure mode of the PHITS. The mode makes calculations of radiation interactions in microscopic complex systems possible. Using the mode, we aim to elucidate the radiation DNA damage induced by ions irradiation into the complex system. We also aim to spreading effect of the mode by the development of database for cross sections of various material.

Academic Significance and Societal Importance of the Research Achievements

今日まで、水における低エネルギー電子の挙動を模擬する飛跡構造コードは複数開発されているが、これらの計算コードは複雑体系を自由に模擬できず、基本的に10eV程度までしか電子挙動を計算しない。本研究は、電子の熱平衡化までを目標とし、非常に独創的且つ画期的である。更に、本研究は水以外の物資も適用可能にする計画を進めるため、これまで着手できなかった物質に対する放射線作用・加熱機構解明に強く関与する。PHITSは一般公開されているため、ナノスケールの物理・化学現象を対象とする研究者が、計算の専門家に頼らずとも、実験デザインや解析が可能になるため、本研究の意義は非常に高い。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 2017

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (9 results)

  • [Journal Article] A Simplified Cluster Analysis of Electron Track Structure for Estimating Complex DNA Damage Yields2020

    • Author(s)
      Matsuya, Y., Nakano, T., Kai, T., Shikazono, N., Akamatsu, K., Yoshii, Y, Sato, T.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 5 Pages: 1-13

    • DOI

      10.3390/ijms21051701

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modeling of yield estimation for DNA strand breaks based on Monte Carlo simulations of electron track structure in liquid water2019

    • Author(s)
      Matsuya Yusuke、Kai Takeshi、Yoshii Yuji、Yachi Yoshie、Naijo Shingo、Date Hiroyuki、Sato Tatsuhiko
    • Journal Title

      Journal of Applied Physics

      Volume: 126 Issue: 12 Pages: 124701-124701

    • DOI

      10.1063/1.5115519

    • NAID

      120006887722

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 放射線物理化学過程に関する最近の進展(後編)2018

    • Author(s)
      甲斐健師、横谷明徳、藤井健太郎、渡邊立子
    • Journal Title

      放射線化学

      Volume: 106 Pages: 21-29

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] A significant role of non-thermal equilibrated electrons in the formation of deleterious complex DNA damage2018

    • Author(s)
      Takeshi Kai, Akinari Yokoya, Masatoshi Ukai, Kentaro Fujii, Tomohiro Toigawa, Rituko Watanabe
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 92 Issue: 4 Pages: 660-664

    • DOI

      10.1039/c7cp06903k

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Features of Particle and Heavy Ion Transport code System (PHITS) version 3.022018

    • Author(s)
      Sato Tatsuhiko、Iwamoto Yosuke、Hashimoto Shintaro、Ogawa Tatsuhiko、Furuta Takuya、Abe Shin-ichiro、Kai Takeshi、Tsai Pi-En、Matsuda Norihiro、Iwase Hiroshi、Shigyo Nobuhiro、Sihver Lembit、Niita Koji
    • Journal Title

      Journal of Nuclear Science and Technology

      Volume: 55 Issue: 6 Pages: 684-690

    • DOI

      10.1080/00223131.2017.1419890

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] PHITSによる電子線トラック構造解析2019

    • Author(s)
      1)甲斐健師、松谷悠佑, 佐藤達彦
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] PHITSにおけるイオンの飛跡構造計算機能の開発2019

    • Author(s)
      甲斐健師,佐藤達彦, Thiansin Liamsuwan, Hooshang Nikjoo
    • Organizer
      第66回応用物理学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 最先端の物理的・化学的手法から探る凝縮相の放射線分解・反応ダイナミクス2019

    • Author(s)
      甲斐健師
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] DNA損傷プロセスにおける低速電子の半古典的動力学解析2018

    • Author(s)
      甲斐健師
    • Organizer
      量子生命科学研究会第2回学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 水の放射線分解で誘発された低エネルギー電子の動的挙動解析2018

    • Author(s)
      甲斐健師, 米谷 佳晃
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 放射線複雑DNA損傷を誘発する低エネルギー電子の役割:動的モンテカルロ計算解析2018

    • Author(s)
      甲斐健師、米谷佳晃、横谷明徳
    • Organizer
      第73回日本物理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] PHITSにおける低エネルギー電子の飛跡構造計算機能の開発2017

    • Author(s)
      甲斐健師, 小川達彦, 安部晋一郎, 佐藤達彦
    • Organizer
      第78回応用物理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] PHITSにおける低エネルギー電子・陽電子の飛跡構造計算機能2017

    • Author(s)
      甲斐健師, 小川達彦, 安部晋一郎, 佐藤達彦
    • Organizer
      第60回放射線化学討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 水中でエネルギー付与された電子の動的挙動2017

    • Author(s)
      甲斐健師, 樋川智洋, 鵜飼正敏, 藤井健太郎, 渡邊立子, 横谷明徳
    • Organizer
      第60回放射線化学討論会
    • Related Report
      2017 Research-status Report

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

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