Development of a flying probe for plasma diagnostics

• Project/Area Number: 24656559
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nuclear fusion studies
• Research Institution: Kyushu University
• Principal Investigator: HANADA Kazuaki 九州大学, 応用力学研究所, 教授 (30222219)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 高温プラズマ計測 / 飛翔型プローブ / 高速電子 / 熱入力 / プローブ計測 / 高温プラズマ / 高速電子による熱入力

Outline of Final Research Achievements

To investigate the impact to plasmas of a flying probe (FP), spheres made of ceramic, stainless steel (SUS), tungsten (W) of 10mm in diameter were dropping into plasmas maintained non-inductively by RF injection. Every FP is planning to recover. The ceramic FP was completely broken, and the stainless steel FP was melt down partially. The plasma currents were vanishing in the cases of the ceramic and the SUS FPs and became to the half in the case of the W FP. There FPs received heat load and momentum from the plasmas, and the motion can provide us the information of plasma parameters. We observe the motion of the SUS and W FP with a high speed camera and finally we confirm that the momentum gives rise of reaction of evaporating material due to asymmetric heat load derived from high energy electrons. After the consideration, we could get an information on the number of energetic electrons multiplied by electron velocity.

Research Products

• [Journal Article] Particle balance in long duration RF driven plasmas on QUEST (2015)
  • Author(s): K. Hanada, H. Zushi, N. Yoshida, M. Hasegawa, K. Mishra, Kuzumin, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, O. Watanabe, T. Onchi, H. Watanabe, K. Tokunaga, A. Higashijima, S.Kawasaki, H.Nakashima, Y.Takase, A.Fukuyama, O.Mitarai, T.Maekawa and M. Peng
  • Journal Title: Journal of Nuclear Materials Volume: 463 Pages: 1084-1084
  • DOI: 10.1016/j.jnucmat.2015.01.013
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Investigation of progression from low to high hydrogen recycling during long duration discharges on a spherical tokamak, QUEST (2014)
  • Author(s): K. Hanada, N. Yoshida, H. Zushi, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, H. Watanabe, M. Hasegawa, S. Kawasaki, H. Nakashima, A. Higashijima, O. Watanabe, Y. Takase, A. Fukuyama, O. Mitarai, M. Peng and the QUEST team
  • Journal Title: Proc.25th Fusion Energy Conference (FEC 2014), 2014.10.13-18, St. Petersburg Russian Federation Volume: EX
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Investigation of Non-inductive Plasma Current Start-up by RF on QUEST (2014)
  • Author(s): Ishiguro, Masaki; Hanada, Kazuaki; Hiqing liu; Ryota, Ogata; Mitsutaka, Isobe; Saya, Tashima; Hideki, Zushi; et.al.
  • Journal Title: 15th INTERNATIONAL CONGRESS ON PLASMA PHYSICS (ICPP2010) & 13th LATIN AMERICAN WORKSHOP ON PLASMA PHYSICS (LAWPP2010) Volume: 511 Pages: 012041-012041
  • DOI: 10.1088/1742-6596/511/1/012041
  • NAID: 120006695578
  • Peer Reviewed / Open Access
• [Journal Article] Power balance estimation in long duration discharges on QUEST (2014)
  • Author(s): Kazuaki Hanada, Hideki Zushi, Hiroshi Idei, Kazuo Nakamura, Masaki Ishiguro, Yoshihiko Nagashima, Makoto Hasegawa, Akihide Fujisawa
  • Journal Title: Plasma Schience and Technology
  • Peer Reviewed
• [Journal Article] Cross-field motion of plasma blob-filaments and related particle flux in an open magnetic field line configuration on QUEST (2013)
  • Author(s): Haiqing Liu, kazuaki hanada, Nobuhiro Nishino, Ryota Ogata, Masaki Ishiguro, X.Gao, hideki zushi, Kazuo Nakamura, Akihide Fujisawa, Hiroshi Idei, makoto hasegawa
  • Journal Title: Journal of Nuclear Materials Volume: Vol.438
  • Peer Reviewed
• [Journal Article] Santanu Banerjee, H. Zushi, N. Nishino, Y. Nagashima, K. Hanada, M. Ishiguro, T. Ryoukai, S. Tashima, T. Inoue, K. Nakamura, H. Idei, M. Hasegawa, A. Fujisawa, and K. Matsuoka (2012)
  • Author(s): Fast visible imaging and edge turbulence analysis in QUEST
  • Journal Title: Rev. Sci. Instrum. Volume: 83 Issue: 10
  • DOI: 10.1063/1.4739080
  • Peer Reviewed
• [Journal Article] ECW/EBW Heating and Current Drive Experiment Results and Prospects for CW Operation in QUEST (2012)
  • Author(s): Hiroshi IDEI, Hideki ZUSHI, Kazuaki HANADA, Evgeniya KALINNIKOVA, Kazuo NAKAMURA, Akihide FUJISAWA, Yoshihiko NAGASHIMA, Makoto HASEGAWA, Keisuke MATSUOKA, Tsuyoshi KARIYA, et.al.
  • Journal Title: Plasma Fusion Res. Volume: 7 Pages: 24021121-7
  • NAID: 130003366274
  • Peer Reviewed
• [Journal Article] ECRH-assisted plasma start-up with toroidally inclined launch: multi-machine comparison and perspectives for ITER (2012)
  • Author(s): J. Stober, G.L. Jackson, E. Ascasibar, Y.-S. Bae, J. Bucalossi, A. Cappa, T. Casper, M.-H. Cho, Y. Gribov, G. Granucci, K. Hanada, J. Hobirk, A.W. Hyatt, S. Ide, J.-H. Jeong, et.al.
  • Journal Title: Nuclear Fusion Volume: 51 Pages: 0830311-8
  • Peer Reviewed
• [Journal Article] A Plasma Shape Identification with Magnetic Analysis for the Real-time Control on QUEST (2012)
  • Author(s): Hanada Kazuaki
  • Journal Title: 電気学会論文誌Ａ（基礎・材料・共通部門誌） Volume: 132
  • NAID: 10030777753
  • Peer Reviewed
• [Journal Article] QUEST Experiments Towards Steady State Operation of Spherical Tokamaks (2012)
  • Author(s): Hanada Kazuaki
  • Journal Title: 電気学会論文誌Ａ（基礎・材料・共通部門誌） Volume: 132
  • NAID: 10030777775
  • Peer Reviewed
• [Journal Article] Non-inductive current drive by EC waves in an inboard poloidal magnetic field null configuration on the Spherical Tokamak QUEST (2012)
  • Author(s): S. Tashima, H. Zushi, M. Isobe, H. Idei, S. Okamura, K. Hanada, K. Nakamura, A. Fujisawa, K. Matsuoka, M. Hasegawa, Y. Nagashima, S. Kawasaki, H. Nakashima, A. Higashijima and QUEST team
  • Journal Title: Proc. 22nd International Toki Conference November 19- 22, 2012 Volume: Proc. 22nd
  • NAID: 130004687671
  • Peer Reviewed
• [Journal Article] Edge turbulence characteristics of the Ohmic-ECRH driven plasma current phase investigated with fast visible imaging in QUEST (2012)
  • Author(s): Santanu Banerjee, H. Zushi, N. Nishino, Y. Nagashima, K. Hanada, S. Tashima, T. Inoue, K. Nakamura, H. Idei, M. Hasegawa, A. Fujisawa and K. Matsuoka
  • Journal Title: Proc. 22nd International Toki Conference November 19-22, 2012 Volume: Proc. 22nd
  • Peer Reviewed
• [Journal Article] Measurement of ion saturation current and floating potential profile in divertor region on QUEST (2012)
  • Author(s): H. Takahashi, K. Hanada, M. Ishiguro, H. Zushi, H. Fujisawa, K. Nakamura, H. Idei, Y. Nagashima, M. Hasegawa, S. Kawasaki, H. Nakashima, A, Higashijima, Y. Takase, A. Fukuyama, et.al.
  • Journal Title: Proc. 22nd International Toki Conference November 19-22, 2012 Volume: Proc. 22nd
  • Peer Reviewed
• [Presentation] QUESTにおける壁の色測定による膜厚評価 (2014)
  • Author(s): 下地 貴大
  • Organizer: プラズマ・核融合学会 九州・沖縄・山口支部第18回支部大会
  • Place of Presentation: 九州大学筑紫地区総合研究棟（C-Cube）
  • Year and Date: 2014-12-20 – 2014-12-21
• [Presentation] Plasma wall interaction in long duration plasmas on ST (2014)
  • Author(s): Kazuaki Hanada
  • Organizer: PLASMA2014
  • Place of Presentation: 朱鷺メッセ(新潟市）
  • Year and Date: 2014-11-18 – 2014-11-21
• [Presentation] Investigation of Progression from Low to High Hydrogen Recycling during Long Duration Discharges on a Spherical Tokamak, QUEST (2014)
  • Author(s): K. Hanada, N. Yoshida, H. Zushi, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, H. Watanabe, M. Hasegawa, S. Kawasaki, H. Nakashima, A. Higashijima, O. Watanabe, Y. Takase, A. Fukuyama, O. Mitarai, M.Peng and the QUEST team
  • Organizer: 25th Fusion Energy Conference (FEC 2014)
  • Place of Presentation: Saint Petersburg, Russia
  • Year and Date: 2014-10-13 – 2014-10-18
• [Presentation] Heat Load Measurement with a Movable Limiter in Non-Inductive Current Driven Plasma Maintaining with a Microwave of 8.2GHz on QUEST (2014)
  • Author(s): N. Hamada, K. Hanada, H. Zushi, K. Nakamura, H. Idei, M. Hasegawa, A. Fujisawa, Y. Nagashima
  • Organizer: 17th International Congress on Plasma Physics (ICPP) 2014
  • Place of Presentation: Lisbon, Portugal
  • Year and Date: 2014-09-15 – 2014-09-19
• [Presentation] Heat load measurements with water cooled movable limiters in long duration plasmas on QUEST (2014)
  • Author(s): N. Hamada, K. Hanada, H. Zushi, K. Nakamura , H. Idei, M. Hasegawa, A. Fujisawa, Y. Nagashima, S. Kawasaki, H. Nakashima, A. Higashijima, Y. Oyama, S. Nishiyama
  • Organizer: A3 Foresight Summer School and Workshop on Spherical Torus (ST) 2014
  • Place of Presentation: Kensington Resort, Jeju, Korea
  • Year and Date: 2014-06-30 – 2014-07-04
• [Presentation] Particle balance in long duration RF driven plasmas on QUEST (2014)
  • Author(s): K. Hanada, H. Zushi, N. Yoshida, M. Hasegawa, K. Mishra, A. Kuzmin, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, O. Watanabe, T. Onchi, H. Watanabe, K. Tokunaga, A. Higashijima, S.Kawasaki, H.Nakashima, Y.Takase, A.Fukuyama, O.Mitarai, T.Maekawa and Y. K. M. Peng
  • Organizer: 21st International Conference on Plasma Surface Interactions 2014
  • Place of Presentation: Ishikawa Ongaku-do
  • Year and Date: 2014-05-26 – 2014-05-30
• [Presentation] Recent QUEST experiments on non-inductive current drive and plasma-wall interaction towards steady state operation of spherical tokamak (2013)
  • Author(s): kazuaki hanada
  • Organizer: 7th IAEA Technical Meeting on Steady-State Operation on Magnetic Fusion Devices
  • Place of Presentation: Aix en Provence, France
  • Invited
• [Presentation] Power balance estimation in long duration discharges on QUEST (2013)
  • Author(s): K.Hanada, H.Zushi, H.Idei, K.Nakamura, M.Ishiguro, S.Tashima, E.I.Kalinnikova, Y.Nagashima, M.Hasegawa, A.Fujisawa, A.Higashijima, S.Kawasaki, H.Nakashima, O.Mitarai3, T.Maekawa, A.Fukuyama, Y.Takase, X. Gao, H.Liu, J.Qian, M.Ono, R.Raman, M. Peng
  • Organizer: A3 Foresight Program Workshop on Critical Physics Issues Specific to Steady State Sustainment of High-Performance Plasmas
  • Place of Presentation: Beijing, China
  • Invited
• [Presentation] Recent progress on non-inductive driven plasma start-up and investigation towards EBWCD on QUEST (2013)
  • Author(s): Kazuaki Hanada
  • Organizer: International Spherical Torus Workshop 2013
  • Place of Presentation: The King's Manor York, UK
  • Invited
• [Presentation] QUESTにおける高周波電流駆動プラズマの硬X線計測 (2013)
  • Author(s): 鈴川槙一郎，花田和明，田島西夜，図子秀樹，恩地拓己, 磯部光孝, 藤澤彰英，中村一男，出射浩，永島芳彦，長谷川真，川崎昌二，中島寿年，東島亜紀，高瀬雄一，福山淳，御手洗修
  • Organizer: プラズマ・核融合学会 第30回年会
  • Place of Presentation: 東京工業大学大岡山キャンパス
• [Presentation] QUESTにおけるECCDプラズマの硬X線計測 (2013)
  • Author(s): 鈴川槙一郎，花田和明，田島西夜，図子秀樹，恩地拓己, 磯部光孝 ,藤澤彰英，中村一男，出射浩，永島芳彦，長谷川真，川崎昌二，中島寿年，東島亜紀，高瀬雄一，福山淳，御手洗修
  • Organizer: プラズマ・核融合学会九州・沖縄・山口支部 第17回支部大会
  • Place of Presentation: 佐世保工業高等専門学校
• [Presentation] AXUVを用いたQUESTプラズマの振動解析 (2013)
  • Author(s): 三浦 弘貴, 花田和明、図子秀樹、中村一男、藤澤彰英、出射浩、永島芳彦、長谷川真、中島寿年、川崎昌二、東島亜紀、御手洗修、前川孝、福山淳、高瀬雄一、江尻晶、福本直之、山口隆史、富樫央
  • Organizer: プラズマ・核融合学会九州・沖縄・山口支部 第17回支部大会
  • Place of Presentation: 佐世保工業高等専門学校
• [Presentation] QUEST内の高周波プラズマにおけるプラズマ対向壁の熱負荷計測 (2013)
  • Author(s): 濱田夏彦, 花田和明, 中村一男, 長谷川真, 徳永和俊, 御手洗修, 図子秀樹, 藤澤彰英, 出射浩, 永島芳彦, 川崎昌二, 中島寿年, 東島亜紀, 荒木邦明
  • Organizer: プラズマ・核融合学会九州・沖縄・山口支部 第17回支部大会
  • Place of Presentation: 佐世保工業高等専門学校
• [Presentation] QUEST内のダスト計測 (2013)
  • Author(s): 本田拓巳, 花田和明,吉田 直亮,図子秀樹,中村一男, 藤澤彰英, 出射浩, 永島芳彦,長谷川真,川崎昌二, 中島寿年, 東島亜紀
  • Organizer: プラズマ・核融合学会九州・沖縄・山口支部 第17回支部大会
  • Place of Presentation: 佐世保工業高等専門学校
• [Presentation] QUESTにおける周辺プラズマのプローブ計測 (2013)
  • Author(s): 下地貴弘, 花田和明, 図子秀樹, 出射浩, 藤澤彰英, 永島芳彦, 長谷川真, 中村一男, 東島亜紀, 川崎昌二, 中島寿年, 福山淳, 高瀬雄一
  • Organizer: プラズマ・核融合学会九州・沖縄・山口支部 第17回支部大会
  • Place of Presentation: 佐世保工業高等専門学校
• [Presentation] プラズマ長時間維持のためのプラズマ・壁相互作用 (2013)
  • Author(s): 花田和明
  • Organizer: RIAMフォーラム2013
  • Place of Presentation: 九州大学筑紫地区
• [Presentation] Two-Fluid MHD Equilibrium Considerations of Te/Ti >> 1, Collisionless Plasmas Sustained by RF Electron Heating (2013)
  • Author(s): Y.K.M. Peng, A. Ishida, Y. Takase, A. Ejiri, N. Tsujii, T. Maekawa, M. Uchida, H. Zushi, K. Hanada, M. Hasegawa
  • Organizer: 23rd International Toki Conference (ITC-23) “Large-scale Simulation and Fusion Science”
  • Place of Presentation: Toki City, Gifu, JAPAN
• [Presentation] Heat and particle handling (2013)
  • Author(s): Kazuaki HANADA
  • Organizer: Workshop on QUEST and Ralatad ST RF Startup and Sustainment Plasma Research
  • Place of Presentation: ＱＵＥＳＴ実験棟 会議室
• [Presentation] QUEST実験の進展と課題 (2013)
  • Author(s): 花田 和明
  • Organizer: ＳＴ研究会「マイクロ派駆動核融合」
  • Place of Presentation: ＮＩＦＳ
• [Presentation] ポイントモデルによるＱＵＥＳＴの粒子バランスの解析 (2012)
  • Author(s): 花田 和明
  • Organizer: 水素定常実験と粒子バランスに関する研究会
  • Place of Presentation: 核融合科学研究所
• [Book] Journal of Plasma and Fusion Research Vol.88, No.12 December 2012 (2012)
  • Author(s): 花田和明、吉田直亮（他の部門では他研究者あり）
  • Total Pages: 777
  • Publisher: 小特集：球場トカマク研究の進展 2.最近の研究成果と研究動向 2-2プラズマ－壁相互作用、ダイバータ研究