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Improvement of nuclear densitometry technique for identifying the fuel debris

Research Project

Project/Area Number 17K07012
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionKyoto University

Principal Investigator

Hori Jun-ichi  京都大学, 複合原子力科学研究所, 准教授 (30362411)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords核燃料物質 / 非破壊分析 / 共鳴 / Self-indication法 / 中性子イメージング / 燃料デブリ分析 / 中性子共鳴 / 核分裂生成物 / self-indication法 / 燃料デブリ / 核種定量
Outline of Final Research Achievements

We have applied the self-indication method to the non-destructive technique to assay a nuclear fuel material in fuel debris. We carried out the experimental validation for the application of a self-indication method at KURNS-LINAC. The correlation between the change of counting rate and areal density was confirmed. Moreover, it was shown that the estimation of the areal density and the neutron imaging for distinguish the nuclear material using a steady neutron source are feasible.

Academic Significance and Societal Importance of the Research Achievements

本研究ではSelf-indication法が核燃料物質の非破壊分析に有効な手段であることを実験と計算の両面から実証することができた。さらに、Self-indication法が特定の核種に感度を持たせることができる特徴を生かし、定常中性子源を用いた中性子イメージングによっても核種識別できる見通しを得たことにより、福島第一原子力発電所の廃止措置における燃料デブリの核燃料物質の適切な計量管理にも生かすことのできる実用性のある分析手法を示すことが出来たため、その社会的意義は大きいと言える。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2020 2019 2018

All Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 定常中性子源を用いたSelf-indication法の核物質検知への適用性研究2020

    • Author(s)
      堀順一、佐野忠史、高橋佳之、八島浩
    • Organizer
      日本原子力学会2020年春の年会3J13
    • Related Report
      2020 Annual Research Report
  • [Presentation] 定常中性子源を用いたSelf-indication法の核物質検知への適用性研究2020

    • Author(s)
      堀 順一、佐野 忠史、高橋 佳之、八島 浩
    • Organizer
      日本原子力学会2020年春の年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Self-indication法を用いた中性子共鳴濃度測定の高度化2019

    • Author(s)
      堀 順一、佐野 忠史、高橋 佳之、八島 浩、李 在洪
    • Organizer
      日本原子力学会2019年秋の大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Improvement of a Non-destructive Nuclide Assay using a Self-indication Method2018

    • Author(s)
      Jun-ichi Hori, Tadafumi Sano, Yoshiyuki Yakahashi, Daisuke Ito, Jaehong Lee, Naoya Abe, Ken Nakajima
    • Organizer
      IEEE/NSS 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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