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Systematic experimental study of space-charge-induced beam instability in next-generation hadron accelerators using a compact ion-trap system

Research Project

Project/Area Number 15H03662
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHiroshima University

Principal Investigator

Okamoto Hiromi  広島大学, 先端物質科学研究科, 教授 (40211809)

Co-Investigator(Kenkyū-buntansha) 伊藤 清一  広島大学, 先端物質科学研究科, 助教 (70335719)
Co-Investigator(Renkei-kenkyūsha) HOTCHI Hideaki  日本原子力研究開発機構, 原子力化学研究部門, 副主任研究員 (00391334)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Keywords加速器 / 荷電粒子ビーム / イオントラップ / 空間電荷効果 / 集団的ビーム不安定性 / 非線形共鳴 / 粒子加速器 / 大強度ビーム / 非中性プラズマ
Outline of Final Research Achievements

A systematic experimental study is made of the so-called “space-charge effects” induced by the strong Coulomb self-field potential of an intense hadron beam in a next-generation accelerator. The unique ion-trap apparatus “S-POD” (Simulator of Particle Orbit Dynamics) developed at Hiroshima University is employed for this purpose. S-POD provides a many-body dynamical system (non-neutral plasma) physically equivalent to a relativistic charged-particle beam and thus enables us to explore various space-charge effects in a local tabletop environment. We have clarified the fundamental mechanism and parameter-dependence of coherent resonance instability driven by the space-charge potential and by weak imperfection fields. A prototype of a multipole ion trap has also been designed and constructed for the future study of beam stability under the influence of strong external nonlinearities.

Report

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

    (26 results)

All 2018 2017 2016 2015

All Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (15 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Effect of quadrupole focusing-field fluctuation on the transverse stability of intense hadron beams in storage rings2018

    • Author(s)
      K. Ito, M. Matsuba, and H. Okamoto
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: なし Issue: 2

    • DOI

      10.1093/ptep/pty004

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simulations on mixing charged particles in a nested Penning trap2017

    • Author(s)
      C. Kaga, H. Higaki, K. Fukushima, K. Osaki, K. Ito, and H. Okamoto
    • Journal Title

      JPS Conf. Proc.

      Volume: 18 Pages: 011013-011013

    • DOI

      10.7566/jpscp.18.011013

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coherent resonance stop bands in alternating gradient beam transport2017

    • Author(s)
      K. Ito, H. Okamoto, Y. Tokashiki, and K. Fukushima
    • Journal Title

      Phys. Rev. Accel. Beams

      Volume: 20 Issue: 6 Pages: 064201-064201

    • DOI

      10.1103/physrevaccelbeams.20.064201

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Paul-trap experiment on the effect of linear focusing-field fluctuations on the long-term stability of an intense hadron beam2017

    • Author(s)
      K. Ito, M. Matsuba, and H. Okamoto
    • Journal Title

      Proc. 14th Meeting of Particle Accelerator Society of Japan

      Volume: なし Pages: 901-904

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Simultaneous confinement of low-energy electrons and positrons in a compact magnetic mirror trap2017

    • Author(s)
      H. Higaki, C. Kaga, K. Fukushima, H. Okamoto, Y. Nagata, Y. Kanai, and Y. Yamazaki
    • Journal Title

      New Journal of Physics

      Volume: 19 Issue: 2 Pages: 023016-023016

    • DOI

      10.1088/1367-2630/aa5a45

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Double stop-band structure near half-integer tunes in high-intensity rings2016

    • Author(s)
      K. Moriya, M. Ota, K. Fukushima, M. Yamaguchi, K. Ito, and H. Okamoto
    • Journal Title

      Physical Review, Accelerators and Beams

      Volume: 19 Issue: 11 Pages: 114201-114201

    • DOI

      10.1103/physrevaccelbeams.19.114201

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Autoresonances of m=2 diocotron oscillations in non-neutral electron plasmas2016

    • Author(s)
      K. Gomberoff, H. Higaki, C. Koga, K. Ito, and H. Okamoto
    • Journal Title

      Physical Review E

      Volume: 94 Issue: 4 Pages: 043204-043204

    • DOI

      10.1103/physreve.94.043204

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Crystalline beam studies with Andy Sessler2016

    • Author(s)
      J. Wei
    • Journal Title

      Proc. International Workshop on Beam Cooling and Related Topic

      Volume: 印刷中

    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Design Study of a Multipole Ion Trap for Beam Physics Applications2015

    • Author(s)
      K. Fukushima
    • Journal Title

      Plasma and Fusion Research

      Volume: 10 Issue: 0 Pages: 1401081-1401081

    • DOI

      10.1585/pfr.10.1401081

    • NAID

      130005286915

    • ISSN
      1880-6821
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Free-energy formula for emittance-growth estimation in intense mismatched beams2015

    • Author(s)
      K. Osaki
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 093G01 Issue: 9 Pages: 1-12

    • DOI

      10.1093/ptep/ptv128

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental study on dipole motion of an ion plasma confined in a linear Paul trap2015

    • Author(s)
      K. Ito
    • Journal Title

      Hyperfine Interactions

      Volume: 236 Issue: 1-3 Pages: 29-37

    • DOI

      10.1007/s10751-015-1196-y

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] 大強度ハドロンビームにおける低次集団振動モードのチューンシフト解析2018

    • Author(s)
      小島邦洸
    • Organizer
      第73回日本物理学会年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 一様磁場中のペニングトラップにおけるNeプラズマを用いた空間電荷効果の研究2018

    • Author(s)
      平塚雅健
    • Organizer
      第73回日本物理学会年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 非線形ビームダイナミクス研究用多重極イオントラップの特性2018

    • Author(s)
      青木将晃
    • Organizer
      第73回日本物理学会年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 線形収束場の揺らぎによるビーム損失に関するポールトラップ実験2018

    • Author(s)
      伊藤清一
    • Organizer
      第73回日本物理学会年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] イオントラップを用いた半整数チューン付近に励起される集団不安定性に関する研究2017

    • Author(s)
      伊藤清一
    • Organizer
      第72回日本物理学会年次大会
    • Place of Presentation
      大阪大学 豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] 線形ポールトラップ中のイオンプラズマの長時間安定性と高周波ノイズの関係について2017

    • Author(s)
      松葉政統
    • Organizer
      第72回日本物理学会年次大会
    • Place of Presentation
      大阪大学 豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] 非線形ビームダイナミクス研究用多重極イオントラップの設計2017

    • Author(s)
      川村現
    • Organizer
      第72回日本物理学会年次大会
    • Place of Presentation
      大阪大学 豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] Application of a compact ion trap to fundamental beam-dynamics studies2017

    • Author(s)
      Hiromi Okamoto
    • Organizer
      the 10th International Conference on Nuclear Physics at Storage Rings
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 線形収束場の揺らぎが高強度ハドロンビームの長時間安定性に及ぼす影響に関するポールトラップ実験2017

    • Author(s)
      伊藤清一
    • Organizer
      第14回日本加速器学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 2次元線形ブラソフ解析による共鳴不安定性の研究2016

    • Author(s)
      渡嘉敷雄士
    • Organizer
      第71回日本物理学会 年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] Nested Penning trap中の電子プラズマに対する陽電子プラズマ入射シミュレーション2016

    • Author(s)
      加賀千翔人
    • Organizer
      第71回日本物理学会 年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] イオントラップを用いた高次共鳴不安定性に関する実験的研究2016

    • Author(s)
      伊藤清一
    • Organizer
      第71回日本物理学会 年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] イオントラップを用いた断面方向に非等方なビームの差共鳴上での時間発展2016

    • Author(s)
      守屋克洋
    • Organizer
      第71回日本物理学会 年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] イオントラップを用いた半整数共鳴に関する実験的研究2016

    • Author(s)
      太田雅人
    • Organizer
      第71回日本物理学会 年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] レーザー冷却を応用した40Ca+イオン蓄積法の開発 III2016

    • Author(s)
      三浦裕貴
    • Organizer
      第71回日本物理学会 年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report

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

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