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Investigation of carbon impurity transport in plasmas by using 13CH4

Research Project

Project/Area Number 21760700
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Nuclear fusion studies
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

NAKANO Tomohide  独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 研究職 (50354593)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords周辺プラズマ / トカマク / ダイバータ / 不純物輸送 / 不純物発生 / プラズマ壁相互作用 / プラズマ・核融合
Research Abstract

In order to understand the transport of carbon, from erosion to deposition,^<13> CH_4 was injected, and the distribution of the deposited^<13> C was investigated. It was found that^<13> C reached, with H atoms, the carbon tiles in front of the^<13> CH_4 injection port. Hence possible transport process of^<13> C is as follows ;^<13> CH_4 neither dissociated into^<13> C and H, nor ionized, nor traveled along the magnetic field lines. But^<13> CH_4 repeated sticking and reemission with carbon tiles and reached the carbon tile in front of the injection port in the form of^<13> CH_x(x=1-4).

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (7 results)

All 2012 2010 2009

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (4 results)

  • [Journal Article] Temporal evolutions of electron temperature and density with edge localized mode in the JT-60U divertor plasma2010

    • Author(s)
      T.Nakano, H.Kubo, N.Asakura
    • Journal Title

      J.Phys.B

      Volume: 43 Pages: 144014-144014

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tungsten Accumulation in H-Mode Plasmas of JT-60U2009

    • Author(s)
      T.Nakano
    • Journal Title

      Nuclear Fusion 49

      Pages: 115024-115024

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Radiation Process of Carbon Ions in JT-60U Detached Divertor Plasmas2009

    • Author(s)
      T.Nakano
    • Journal Title

      Journal of Nuclear Materials 390-391

      Pages: 255-258

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Carbon-13 dep osition on the inner divertor tiles in JT-60U2012

    • Author(s)
      M. Fukumoto, T. Nakano, K. Itami, Y. Ueda and T. Tanabe
    • Organizer
      International Conferenc e on Plasma Surface Interactions in Controlled Fusion Devices
    • Place of Presentation
      Aachen, Germany
    • Year and Date
      2012-05-22
    • Related Report
      2011 Final Research Report
  • [Presentation] JT-60Uにおけるタングステンの輸送2010

    • Author(s)
      仲野友英、久保博孝、朝倉伸幸
    • Organizer
      第27回プラズマ核融合学会年会
    • Place of Presentation
      北海道大学(札幌)
    • Year and Date
      2010-11-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] Fractional Abundance and Cooling Rate of W calculated with FAC code2010

    • Author(s)
      T.Nakano, H.Kubo, N.Asakura, T.Ozeki
    • Organizer
      7^<th> international conference on atomic and molecular data and their applications
    • Place of Presentation
      ヴィリニュス(リトアニア)
    • Year and Date
      2010-09-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] Tungsten transport and accumulation in JT-60U2010

    • Author(s)
      T.Nakano, the JT-60team
    • Organizer
      19^<th> international conference on plasma-surface interactions in controlled fusion devices
    • Place of Presentation
      サンディエゴ(米国)(招待講演)
    • Year and Date
      2010-05-22
    • Related Report
      2010 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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