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Precision lifetime spectroscopy of metastable ions using electrostatic ion beam trap: new development to highly charged ions

Research Project

Project/Area Number 16K05630
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plasma science
Research InstitutionKyoto University

Principal Investigator

Saito Manabu  京都大学, 工学研究科, 教授 (60235075)

Co-Investigator(Kenkyū-buntansha) 春山 洋一  京都府立大学, 生命環境科学研究科, 研究員 (00173097)
Project Period (FY) 2016-04-01 – 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 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords禁制遷移 / 放射寿命 / イオンビームトラップ / 分光計測 / プラズマ / トラップ
Outline of Final Research Achievements

We have studied the method to precisely measure the lifetimes of the metastable states in highly charged ions, using an electrostatic ion beam trap that can confines ions in a restricted vacuum space for a long time. We have developed the method for singly and doubly charged ions so far. In the present study, we improved to be applicable to more highly charged ions. Using this method, we succeeded to precisely measure the lifetimes of the metastable states in Kr3+ and Xe3+ ions. The present lifetime measurements of metastable states demonstrated that this method can be one of the prototypes for the measurements of metastable lifetimes.

Academic Significance and Societal Importance of the Research Achievements

励起状態のイオンが自然に壊れずに存在できる時間をその状態の寿命という。励起状態のイオンの寿命に関する研究は、原子・分子物理や放射線物理、プラズマ科学、宇宙科学などの様々な学術研究分野で必要とされている。本研究は、これまで困難であった、準安定状態と呼ばれる励起状態にあるイオンの寿命を精密に測定することを目的とした。本研究の精密測定を実現することは、準安定状態イオンに対する新たな精密寿命測定法のプロトタイプを示すものであり、高精度な寿命データを必要とする多くの研究分野にとって非常に重要な意義がある。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2019 2018 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 2 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Radiative lifetime measurements of metastable levels in Kr3+ using electrostatic ion beam trap2019

    • Author(s)
      M. Saito, H. Kubota, T. Majima, M. Imai, H. Tsuchida, Y. Haruyama
    • Journal Title

      X-ray spectrometory

      Volume: 49 Issue: 1 Pages: 37-41

    • DOI

      10.1002/xrs.3042

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Radiative lifetime measurements of 2P3/2 and 2P1/2 metastable levels in triply charged xenon using electrostatic ion beam trap2018

    • Author(s)
      Saito M.、Chikaoka A.、Majima T.、Imai M.、Tsuchida H.、Haruyama Y.
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

      Volume: 414 Pages: 68-73

    • DOI

      10.1016/j.nimb.2017.10.024

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Radiative lifetime measurement of 1S0 metastable state of Ar2+ using electrostatic ion beam trap2017

    • Author(s)
      M. Saito, N. Ojima, T. Majima, M. Imai, H. Tsuchida, Y. Haruyama
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B

      Volume: 印刷中 Pages: 194-197

    • DOI

      10.1016/j.nimb.2017.03.104

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] An Electrostatic Ion Beam Trap Technique and Its Application2016

    • Author(s)
      斉藤学、春山洋一
    • Journal Title

      Butsuri

      Volume: 71 Issue: 9 Pages: 628-635

    • DOI

      10.11316/butsuri.71.9_628

    • NAID

      130005286930

    • ISSN
      0029-0181, 2423-8872
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Radiative lifetime measurement of metastabele levels in Kr3+ using electrostatic ion beam trap2018

    • Author(s)
      H. Kubota, M. Saito, T. Majima, M. Imai, H. Tsuchida, and Y. Haruyama
    • Organizer
      19th INTERNATIONAL CONFERENCES ON THE PHYSICS OF HIGHLY CHARGED IONS
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 静電型イオンビームトラップによる準安定状態3価Krイオンの放射寿命測定2018

    • Author(s)
      久保田啓嗣,斉藤学,間嶋拓也,今井誠,土田秀次
    • Organizer
      原子衝突学会第43回年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Radiative lifetime of metastable Xe3+ measured using an electrostatic2017

    • Author(s)
      M. Saito, A. Chikaoka, T. Majima, M. Imai, H. Tsuchida
    • Organizer
      XXX International Conference of Photonic, Electronic and Atomic Collisions
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] RADIATIVE LIFETIME MEASUREMENT OF THE 1S0 METASTABLE STATE OF Ar2+ USING AN ELECTROSTATIC ION BEAM TRAP2016

    • Author(s)
      N. Ojima, M. Saito, T. Majima, M. Imai, H. Tsuchida, Y. Haruyama
    • Organizer
      18th International Conference on the Physics of Highly Charged Ions
    • Place of Presentation
      Kielce, Poland
    • Year and Date
      2016-09-11
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-02-19  

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