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Development of method for rare isotope spectroscopic analysis using lasers

Research Project

Project/Area Number 15H04240
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear engineering
Research InstitutionThe University of Tokyo

Principal Investigator

Hasegawa Shuichi  東京大学, 大学院工学系研究科(工学部), 教授 (90262047)

Co-Investigator(Kenkyū-buntansha) 宮部 昌文  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 廃炉国際共同研究センター, 研究主幹 (20354863)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2015: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywords同位体分析 / レーザー / イオン / 原子・イオン / 同位体
Outline of Final Research Achievements

This research aims at establishment of isotope selective manipulation technique and spectroscopy of hyperfine structure of 41Ca+ to realize the trace amount isotopic analysis method. Using 43Ca+ isotope with the same nuclear spin as 41Ca+, we established a laser cooling cycle considering hyperfine structure and succeeded in observing 43Ca+ individual ions by efficient laser cooling. Furthermore, with the aim of improving the isotope selective manipulation technique, we developed a new light source necessary for multistep resonance ionization of neutral calcium atoms, and realized three - step resonant photoionization, which resulted in observation of isotope shifts.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (11 results)

All 2017 2016 2015

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (10 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Development of multiple laser frequency control system for Ca+ isotope ion cooling2015

    • Author(s)
      Kyunghun Jung, Yuta Yamamoto, Shuichi Hasegawa
    • Journal Title

      Hyperfine Interactions

      Volume: 236 Issue: 1-3 Pages: 39-51

    • DOI

      10.1007/s10751-015-1209-x

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] Development of Tapered Amplifier Coupled ECDL System for Resonance Ionisation2017

    • Author(s)
      Stephen R Wells, Yuta Yamamoto, Shuichi Hasegawa
    • Organizer
      日本原子力学会2017年春の年会
    • Place of Presentation
      東海大学湘南キャンパス(神奈川県・平塚市)
    • Year and Date
      2017-03-28
    • Related Report
      2016 Annual Research Report
  • [Presentation] イオントラップ中でのレーザー冷却における同重体干渉の評価2017

    • Author(s)
      落合皓貴, 山元祐太, 鄭京勲, 石川大裕, 長谷川秀一
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学豊中キャンパス(大阪府・豊中市)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] Development of Tapered Amplifier Coupled ECDL System for Resonance Ionisation2017

    • Author(s)
      S. R. Wells, Y. Yamamoto, S. Hasegawa
    • Organizer
      平成29年度日本原子力学会北関東支部若手研究者発表会
    • Related Report
      2017 Annual Research Report
  • [Presentation] イオントラップレーザー冷却分析手法の検討に依る検出下限の低減化2017

    • Author(s)
      落合皓貴、山元祐太、石川大裕、長谷川秀一
    • Organizer
      日本原子力学会2017年秋の大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] レーザー共鳴イオン四重極質量分析トラップ装置の設計検討2017

    • Author(s)
      長谷川秀一、山本和弘
    • Organizer
      日本質量分析学会2017年度同位体比部会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Diode Laser External Cavity Design for High Power Laser Light Generation for Atomic Spectroscopy Applications2016

    • Author(s)
      Stephen R. Wells, 山元祐太, 長谷川秀一
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学角間キャンパス(石川県・金沢市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] Observation of cooled Ca ions in RF trap by the axial direction2016

    • Author(s)
      Y. Yamamoto, S. Hasegawa
    • Organizer
      European Conference on Trapped Ions
    • Place of Presentation
      Arosa, Switzerland
    • Year and Date
      2016-08-29
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レーザー共鳴イオン化法によるストロンチウム同位体分析法の開発 (3)2016

    • Author(s)
      宮部昌文、大場正規、 赤岡克昭、若井田育夫、長谷川秀一
    • Organizer
      日本原子力学会2016年春の年会
    • Place of Presentation
      東北大学(宮城県・仙台市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] レーザー共鳴イオン化法によるストロンチウム同位体分析法の開発 (2)2015

    • Author(s)
      宮部昌文、大場正規、赤岡克昭、若井田育夫、長谷川秀一
    • Organizer
      日本原子力学会2015年秋の大会
    • Place of Presentation
      静岡大学(静岡県・静岡市)
    • Year and Date
      2015-09-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] ICPMS-ILECSでのイオン捕獲時同重体影響の検討2015

    • Author(s)
      鄭京勲、山元祐太、 長谷川秀一
    • Organizer
      日本原子力学会北関東支部若手研究者発表会
    • Place of Presentation
      東海会館(茨城県・東海村)
    • Year and Date
      2015-04-17
    • Related Report
      2015 Annual Research Report

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Published: 2015-04-16   Modified: 2019-03-29  

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