Study of magnetic structure using heat pulse propagation

• Project/Area Number: 24760701
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: TSUCHIYA Hayato 核融合科学研究所, ヘリカル研究部, 助教 (90509522)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: ストキャスティック磁場 / 電子サイクロトロン放射計測 / ヘリカルプラズマ / 大型ヘリカル装置 / ギガヘルツサンプリグ / plasma / ストキャスシティ / 磁気島 / ヒートパルス / 熱伝搬 / 変調ECH加熱 / 変調ＥＣＨ

Research Abstract

The heat pulse propagation method was experimentally verified as an estimation method of the boundary surface between closed surface and stochastic magnetic field region in surrounding area of helical plasma. The aspect of the propagation of heat pulse around last closed surface was investigated, and it is found that the stochastic magnetic field region was expanded. The new technique of electron cyclotron emission measurement, which is used for the measurement of heat pulse propagation, has been developed and was demonstrated in a plasma experiment.

Research Products

• [Journal Article] Digital Correlation ECE Measurement Technique with a Gigahertz Sampling Digitizer (2014)
  • Author(s): Hayato Tsuchiya, Sigeru Inagaki, Tokihiko Tokuzawa, Naoki Tamura and Yoshio Nagayama
  • Journal Title: Plasma and Fusion Research Volume: 9 Issue: 0 Pages: 3402021-3402021
  • DOI: 10.1585/pfr.9.3402021
  • NAID: 130005260435
  • ISSN: 1880-6821
  • Peer Reviewed
• [Presentation] Impact of Stochastization of Magnetic Fields on Internal Transport Barrier in LHD (2014)
  • Author(s): Hayato Tsuchiya, Katsumi Ida, Kenichi Nagaoka, Masaki Osakabe, Kensaku Kamiya, Hiromi Takahashi, Yasuhiro Suzuki, Satoshi Ohdachi, Hiroshi Yamada and LHD experiment group
  • Organizer: 17th International Congress on Plasma Physics
  • Place of Presentation: ボルトガル・リスボン
  • Invited
• [Presentation] ストキャスティゼーションによるコア温度平坦化現象 (2013)
  • Author(s): 土屋隼人
  • Organizer: プラズマ・核融合学会第30回年会
  • Place of Presentation: 東京工業大学(東京都)
• [Presentation] Core Temperature Flattening by stochastization on ITB plasma in LHD (2013)
  • Author(s): H. Tsuchiya, et.al.
  • Organizer: The 19th ISHW and 16th RFP workshop
  • Place of Presentation: パドバ(イタリア)
• [Presentation] Core Temperature Flattening by Stochastization on ITB plasma in LHD The 19th ISHW and 16th IEA-RFP workshop (2013)
  • Author(s): H. Tsuchiya, K.Ida, M. Osakabe, H. Takahashi, K. Nagaoka, Y. Nagayama, H. Yamada and the LHD Experiment Group
  • Organizer: The 19th ISHW and 16th IEA-RFP workshop
  • Place of Presentation: イタリア・バドバ
• [Presentation] Digital Correlation ECE Measurement Technique with a Gigahertz Sampling Digitizer (2013)
  • Author(s): Hayato TSUCHIYA, Sigeru INAGAKI, Tokihiko TOKUZAWA, Naoki TAMURA and Yoshio NAGAYAMA
  • Organizer: 23rd International Toki Conference
  • Place of Presentation: 土岐市
• [Presentation] ストキャスティゼーションによるコア温度平坦化現象 (2013)
  • Author(s): 土屋隼人
  • Organizer: プラズマ核融合学会第３０回年会
  • Place of Presentation: 東京工業大学
• [Presentation] Digital Correlation EE Measurement Techinique with a Gigahertz Sampling Digitizer (2012)
  • Author(s): Hayato Tsuchiya, et.al.
  • Organizer: 3rd International Toki Conference
  • Place of Presentation: セラトピア土岐(岐阜県土岐市)
• [Presentation] 高イオン温度プラズマにおけるECHモジュレーションを用いた輸送特性 (2012)
  • Author(s): 土屋隼人
  • Organizer: プラズマ・核融合学会第29回年会
  • Place of Presentation: クローバープラザ(福岡県春日市)
• [Presentation] 高イオン温度プラズマにおけるECHモジュレーションを用いた輸送特性 (2012)
  • Author(s): 土屋隼人 長壁正樹 高橋裕己 長山好夫
  • Organizer: プラズマ・核融合学会 第29回年会
  • Place of Presentation: クローバープラザ（福岡県春日市）