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Formation and investigation of electron-positron plasma in a dipole magnetic field configuration

Research Project

Project/Area Number 25707043
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Plasma science
Research InstitutionThe University of Tokyo

Principal Investigator

SAITOH Haruhiko  東京大学, 大学院新領域創成科学研究科, 客員共同研究員 (60415164)

Project Period (FY) 2013-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2013: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Keywords反物質プラズマ / ダイポール磁場 / 電子陽電子プラズマ / 低速陽電子ビーム / 高温超伝導線材 / 陽電子ビーム / 非中性プラズマ / カオス / プラズマ・核融合 / 陽電子プラズマ
Outline of Final Research Achievements

Toward the formation of electron-positron plasmas in a laboratory, experiments with intense slow positron beam were conducted in a dipole magnetic configuration. In a prototype dipole experiment with a permanent magnet, operated at the NEPOMUC positron facility, 100% lossless injection into closed magnetic surfaces, trapping for more than 1 s, and orbit manipulation were demonstrated for 5 eV positron beam. Based on these experimental results, development of a levitated dipole experiment was conducted, including the levitation system, efficient direct cooling of a high temperature superconducting (HTS) coil winding, fabrication of HTS coils to be used for the confinement of plasmas.

Report

(6 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (24 results)

All 2018 2017 2016 2015 2014 2013 Other

All Int'l Joint Research (5 results) Journal Article (8 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 8 results,  Acknowledgement Compliant: 3 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results)

  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所/ミュンヘン工科大学(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所/ミュンヘン工科大学(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学/ローレンス大学(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所/ミュンヘン工科大学(ドイツ)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学/ローレンス大学(米国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Manipulation of positron orbits in a dipole magnetic field with fluctuating electric fields2018

    • Author(s)
      H. Saitoh, J. Horn-Stanja, S. Nissl, E.V. Stenson, U. Hergenhahn, T. Sunn Pedersen, M. Singer, M. Dickmann, C. Hugenschmidt, M R. Stoneking, J.R. Danielson, and C.M. Surko
    • Journal Title

      AIP Conference Proceedings

      Volume: 1928 Pages: 0200131-6

    • DOI

      10.1063/1.5021578

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Progress of the APEX experiment for creation of an electron-positron pair plasma2018

    • Author(s)
      U. Hergenhahn, J. Horn-Stanja, S. Nissl, T. Sunn Pedersen, H. Saitoh, E.V. Stenson, M.R. Stoneking, M. Dickmann, C. Hugenschmidt, M. Singer, J.R. Danielson, and C.M. Surko
    • Journal Title

      AIP Conference Proceedings

      Volume: 1928 Pages: 0200041-11

    • DOI

      10.1063/1.5021569

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Toward a compact levitated superconducting dipole for positron-electron plasma confinement2018

    • Author(s)
      M.R. Stoneking, H. Saitoh, M. Singer, E.V. Stenson, J. Horn-Stanja, T. Sunn Pedersen, S. Nissl, U. Hergenhahn, N. Yanagi, C. Hugenschmidt, M. Dickmann, J.R. Danielson, and C.M. Surko
    • Journal Title

      AIP Conference Proceedings

      Volume: 1928 Pages: 0200151-6

    • DOI

      10.1063/1.5021580

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 低エネルギー陽電子を用いた電子-陽電子プラズマ研究2017

    • Author(s)
      H. Higaki, J. Horn-Stanja, E.V. Stenson, H. Saitoh, U. Hergenhahn, T. Sunn Pedersen, M. Singer, M. Dickmann, and C. Hugenschmidt
    • Journal Title

      原子衝突学会誌「しょうとつ」

      Volume: 14 Pages: 15-24

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chaos of energetic positron orbits in a dipole magnetic field and its potential application to a new injection scheme2016

    • Author(s)
      H. Saitoh, Z. Yoshida, Y. Yano, M. Nishiura, Y. Kawazura, J. Stanja, and T. Sunn Pedersen
    • Journal Title

      Physical Review E

      Volume: 94 Issue: 4 Pages: 043203-043203

    • DOI

      10.1103/physreve.94.043203

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Characterization of the NEPOMUC primary and remoderated positron beams at different energies2016

    • Author(s)
      J. Stanja, U. Hergenhahn, H. Niemann, N. Paschkowski, T. Sunn Pedersen, H. Saitoh, E. V. Stenson, M. R. Stoneking, C. Hugenschmidt, and C. Piochcz
    • Journal Title

      Nuclear Instruments and Methods in Physics Research A

      Volume: 827 Pages: 52-52

    • DOI

      10.1016/j.nima.2016.04.093

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Efficient injection of an intense positron beam into a dipole magnetic field2015

    • Author(s)
      H. Saitoh, J. Stanja, E. V. Stenson, U. Hergenhahn, H. Niemann, T. Sunn Pedersen, M. R. Stoneking, C. Piochacz, and C. Hugenschmidt
    • Journal Title

      New Journal of Physics

      Volume: 17 Issue: 10 Pages: 103038-103038

    • DOI

      10.1088/1367-2630/17/10/103038

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Recent status of A Positron-Electron Experiment (APEX)2014

    • Author(s)
      H. Saitoh, T. S. Pedersen, U. Hergenhahn, E. V. Stenson, N. Paschkowski, and C. Hugenschmidt
    • Journal Title

      Journal of Physics: Conference Series (Proceedings of the 13th International Workshop on Slow Positron Beam Techniques and Applications)

      Volume: 505 Pages: 0120451-4

    • DOI

      10.1088/1742-6596/505/1/012045

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Development status of a levitated dipole experiment for pair-plasma production2017

    • Author(s)
      H. Saitoh, J. Horn-Stanja, E. V. Stenson, U. Hergenhahn, M. Singer, M. R. Stoneking, N. Yanagi
    • Organizer
      ドイツ物理学会春季大会
    • Place of Presentation
      ブレーメン大学(ブレーメン,ドイツ)
    • Year and Date
      2017-03-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Chaotic long orbits of energetic positrons in a dipole magnetic field configuration2017

    • Author(s)
      H. Saitoh, J. Horn-Stanja, E.V. Stenson, M. Singer, U. Hergenhahn, T. Sunn Pedersen, Y. Kawazura, Y. Yano, M. Nishiura, and Z. Yoshida
    • Organizer
      12th International Workshop on Non-neutral Plasmas
    • Related Report
      2017 Annual Research Report
  • [Presentation] Injection and manipulation of positron beam in a dipole magnetic field toward the creation of electron-positron pair plasmas2017

    • Author(s)
      H. Saitoh, J. Horn-Stanja, E.V. Stenson, U. Hergenhahn, T. Sunn Pedersen, M. Singer, M. Dickmann, C. Hugenschmidt, M.R. Stoneking, and J.R. Danielson
    • Organizer
      1st Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2017)
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] ダイポール磁場配位を用いた陽電子閉じ込め研究の進展2017

    • Author(s)
      齋藤晴彦,T. Sunn Pedersen, J. Horn-Stanja, E.V. Stenson, U. Hergenhahn, M. Singer, M. Dickmann, C. Hugenschmidt, M.R. Stoneking, and J.R. Danielson
    • Organizer
      物理学会第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Progress toward the creation of magnetically confined pair-plasmas2016

    • Author(s)
      H. Saitoh, U. Hergenhahn, H. Niemann, N. Paschkowski, T. Sunn Pedersen, J. Stanja, E. V. Stenson, M. R. Stoneking, C. Hugenschmidt, C. Piochacz, S. Vohburger, L. Schweikhard, J. R. Danielson, and C. M. Surko
    • Organizer
      6th East-Asia School and Workshop on Laboratory, Space, and Astrophysical plasmas
    • Place of Presentation
      エポカルつくば(茨城県つくば市)
    • Year and Date
      2016-07-11
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Progress toward the creation of magnetically confined pair-plasmas2016

    • Author(s)
      H. Saitoh, U. Hergenhahn, H. Niemann, N. Paschkowski, T. Sunn Pedersen, J. Stanja, E. V. Stenson, M. R. Stoneking, C. Hugenschmidt, C. Piochacz, S. Vohburger, L. Schweikhard, J. R. Danielson, and C. M. Surko
    • Organizer
      ドイツ物理学会春季大会
    • Place of Presentation
      ハノーファー大学(ハノーファー,ドイツ)
    • Year and Date
      2016-02-29
    • Related Report
      2015 Annual Research Report
  • [Presentation] Recent status of the PAX and APEX projects toward the formation of electron-positron plasma2015

    • Author(s)
      U. Hergenhahn, H. Niemann, N. Paschkowski, T. Sunn Pedersen, H. Saitoh, J. Stanja, E. V. Stenson, M. R. Stoneking, C. Hugenschmidt, C. Piochacz, S.Vohburger, G. H. Marx, L. Schweikhard, J. R. Danielson, and C. M. Surko
    • Organizer
      25th International Toki Conference (ITC-25)
    • Place of Presentation
      セラトピア土岐(岐阜県土岐市)
    • Year and Date
      2015-11-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Status of A Positron-Electron Experiment (APEX) towards the formation of pair plasmas2014

    • Author(s)
      H. Saitoh, J. Stanja, T. Sunn Pedersen, U. Hergenhahn, E. V. Stenson, H. Niemann, N. Paschkowski, C. Hugenschmidt, G. H. Marx, L. Schweikhard, J. R. Danielson, C. M. Surko
    • Organizer
      11th International Workshop on Non-neutral Plasmas
    • Place of Presentation
      サンポートホール高松(香川県高松市)
    • Year and Date
      2014-12-01 – 2014-12-04
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Injection and trapping of electrons in a dipole magnetic field: towards the formation of an electron-positron plasma2014

    • Author(s)
      H. Saitoh, T. Sunn Pedersen, U. Hergenhahn, E. V. Stenson, J. Stanja, N. Paschkowski, C. Hugenschmidt
    • Organizer
      41st EPS Conference on Plasma Physics
    • Place of Presentation
      bcc Berlin Congress Center,ベルリン(ドイツ)
    • Year and Date
      2014-06-23 – 2014-06-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] Recent status of A Positron-Electron Experiment (APEX)2013

    • Author(s)
      H. Saitoh, T. S. Pedersen, U. Hergenhahn, E. V. Stenson, N. Paschkowski, and C. Hugenschmidt
    • Organizer
      13th International Workshop on Slow Positron Beam Techniques and Applications
    • Place of Presentation
      ドイツ ガルヒン ミュンヘン工科大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Trapping properties of magnetic dipole fields2013

    • Author(s)
      H. Saitoh, T. S. Pedersen, U. Hergenhahn, E. V. Stenson, N. Paschkowski, and C. Hugenschmidt
    • Organizer
      Physics of Electron-Positron Plasma Workshop
    • Place of Presentation
      ドイツ グライフスヴァルト マックスプランク・プラズマ物理研究所
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-21   Modified: 2022-02-16  

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