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Development of high-resolution resonance laser spectroscopy using laser-induced plasma for remote isotopic analysis of radioactive materials

Research Project

Project/Area Number 18H01922
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

Miyabe Masabumi  国立研究開発法人日本原子力研究開発機構, 福島研究開発部門 福島研究開発拠点 廃炉環境国際共同研究センター, 研究主幹 (20354863)

Co-Investigator(Kenkyū-buntansha) 長谷川 秀一  東京大学, 大学院工学系研究科(工学部), 教授 (90262047)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Keywordsレーザーアブレーション / レーザー誘起共鳴蛍光 / ドップラーフリー分光 / 多段階共鳴励起 / 同位体分析 / カルシウム / 蛍光分析 / 遠隔同位体分析法 / 共鳴蛍光分光 / 共鳴吸収分光 / レーザー分光 / 遠隔分析 / 原子・分子物理 / ドップラーフリー / 飽和吸収分光
Outline of Final Research Achievements

A high-resolution spectrometry combining laser ablation and Doppler-free fluorescence spectroscopic techniques has been developed as an analysis having remoteness and rapidity for various highly radioactive analytes generated during decommissioning process. As a result, we succeeded in improving the spectral resolution by 10 times or more (100 MHz) compared to the conventional ablation absorption spectroscopy having Doppler broadening. As a result of applying this technique to the analysis of natural calcium isotopes in concrete, it was found that it has a sensitivity capable of detecting 42Ca (abundance of about 0.6%), and that it has good linearity in the calibration curve.

Academic Significance and Societal Importance of the Research Achievements

廃炉では様々な核種組成情報が求められるが、分析作業員の被ばく防止や、廃炉作業への分析結果の速やかな反映のため、遠隔性や迅速性のある分析法が求められ、アブレーション共鳴分光の利用が望まれている。しかし、多くの核種では、同位体毎の共鳴波長の差が小さく、ガスでレーザープラズマを冷却しても、ドップラー効果によるスペクトル幅が広く、同位体の識別は難しかった。開発した高分解能アブレーション共鳴蛍光分光法は、従来法に比べて1桁以上波長分解能が高く、廃炉に関係する多くの核種の分析が可能となっており、その社会的意義は大きい。また本方法は、レーザープラズマの精密計測の手法としても利用でき、科学的意義も高い。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018 Other

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results) Presentation (6 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Journal Article] Generation of particles and fragments by quasicontinuous wave fiber laser irradiation of stainless steel, alumina, and concrete materials2021

    • Author(s)
      Daido Hiroyuki、Yamada Tomonori、Furukawa Hiroyuki、Ito Chikara、Miyabe Masabumi、Shibata Takuya、Hasegawa Shuichi
    • Journal Title

      Journal of Laser Applications

      Volume: 33 Issue: 1 Pages: 012001-012001

    • DOI

      10.2351/7.0000190

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Odd-parity autoionizing levels of uranium observed by two-color two-step photoionization optogalvanic spectroscopy2021

    • Author(s)
      Miyabe Masabumi、Satou Yukihiko、Wakaida Ikuo、Terabayashi Ryohei、Sonnenschein Volker、Tomita Hideki、Zhao Yue、Sakamoto Tetsuo
    • Journal Title

      Journal of Physics B: Atomic, Molecular and Optical Physics

      Volume: - Issue: 14 Pages: 145003-145003

    • DOI

      10.1088/1361-6455/abf89f

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design, construction and characterization of a single unit external cavity diode laser coupled tapered amplifier system for atomic physics2020

    • Author(s)
      Wells Stephen R.、Miyabe Masabumi、Hasegawa Shuichi
    • Journal Title

      Optics & Laser Technology

      Volume: 126 Pages: 106118-106118

    • DOI

      10.1016/j.optlastec.2020.106118

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of laser ablation absorption spectroscopy for nuclear fuel materials: plume expansion behavior for refractory metals observed by laser-induced fluorescence imaging spectroscopy2020

    • Author(s)
      M. Miyabe, M. Oba, K. Akaoka, M. Kato, S. Hasegawa, I. Wakaida
    • Journal Title

      Applied Physics A

      Volume: 126 Issue: 3 Pages: 213-213

    • DOI

      10.1007/s00339-020-3368-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] レーザー加工により発生する微粒子の解析と核種同定手法の開発(4)(2) 高分解能遠隔核種分析法の開発2021

    • Author(s)
      宮部昌文、山田知典、柴田卓弥、伊藤主税、 大道博行、長谷川秀一
    • Organizer
      日本原子力学会 春の年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Remote isotope analysis using laser spectroscopic technique2019

    • Author(s)
      M. Miyabe, M. Oba, K. Akaoka, I. Wakaida
    • Organizer
      International Topical Workshop on Fukushima Decomissioning Research (FDR 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of laser ablation absorption spectroscopy for nuclear fuel materials2019

    • Author(s)
      M. Miyabe, M. Oba, K. Akaoka, I. Wakaida
    • Organizer
      15th International Conference on Laser Ablation (COLA2020)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レーザー共鳴分光を用いた遠隔同位体分析法の開発2019

    • Author(s)
      宮部昌文、大場正規、赤岡克昭、加藤政明、若井田育夫
    • Organizer
      第17回同位体科学研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Remote isotopic analysis using laser spectroscopic technique2019

    • Author(s)
      Masabumi Miyabe, Masaki Oba, Katsuaki Akaoka, Ikuo Wakaida
    • Organizer
      International Topical Workshop on Fukushima Decommissioning Research (FDR2019)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 過酷事故炉を対象とした迅速遠隔分析技術開発-6、(4)アブレーション共鳴吸収分光法による同位体組成分析2018

    • Author(s)
      宮部昌文、大場正規、赤岡克昭、若井田育夫
    • Organizer
      日本原子力学会2018年秋の大会
    • Related Report
      2018 Annual Research Report
  • [Remarks]

    • URL

      https://www.researchgate.net/profile/Masabumi-Miyabe-2

    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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