多階層複雑・開放系における粒子循環の物理とマクロ制御

2014 Fiscal Year Annual Research Report

• Project/Area Number: 24226020
• Research Institution: Kyushu University
• Principal Investigator: 図子 秀樹 九州大学, 応用力学研究所, 教授 (20127096)
• Co-Investigator(Kenkyū-buntansha): 花田 和明 九州大学, 応用力学研究所, 教授 (30222219) ; 藤澤 彰英 九州大学, 応用力学研究所, 教授 (60222262) ; 出射 浩 九州大学, 応用力学研究所, 准教授 (70260049) ; 永島 芳彦 九州大学, 応用力学研究所, 准教授 (90390632)
• Project Period (FY): 2012-05-31 – 2017-03-31
• Keywords: プラズマ・核融合 / 複雑・開放系 / 多階層 / 自発プラズマ回転 / 粒子循環応答関数

Outline of Annual Research Achievements

核融合炉の定常化に向けた研究課題として“多階層複雑・開放系における粒子循環物理とマクロ制御”という観点でプラズマ対向壁(PFC)、周辺開磁気面領域(SOL)、高性能プラズマコア領域(CORE)から構成される入れ子状の複雑系における粒子循環・密度分布に関わるマクロ構造形成・伝達過程とその制御性を調べることが目的である。
これまでに、1)電子サイクロトロン波による非誘導電流駆動と定常維持、2)トカマク運転の定常運転と粒子循環制御法の開発、3)SOL領域のプラズマ揺らぎの特性と可視化および流れ計測、4)温度制御可能な高温壁の導入による壁循環の拘束、などを目標に成果をあげてきた。
今年度は設置した温度制御可能な高温壁を用い、粒子循環動特性の温度依存性の詳細と“粒子循環特性の予測と制御”を試みる。即ち、①外部摂動に対する伝達関数の温度依存性とそれを導入した壁吸蔵・放出過程の動特性予測、②SOL揺動駆動束、熱流束、およびプラズマ流れの相互役割および中性ガス揺らぎと粒子循環の関わり、③運動量入射のない系における自発プラズマ流れの発現とその維持を調べる。特にトカマク配位形成過程や粒子循環との相互作用に着目する。最終的に、燃料粒子の外部からの注入が、1)金属内部への水素透過やその保持、2)SOLの密度揺らぎの増幅ならびに中性ガス圧の揺らぎ増大、3)プラズマ内部密度分布並びにプラズマ回転分布の修正と自己回復、などをもたらす機構の解明と予測・制御をめざす。

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

研究は予想を上回って進んでいる。
本研究の前提である高周波による駆動電流値が、最終目標である1MWで100kAに対し、350kW で66 kAを達成することができた。これは電子サイクロトン波第2高調波を用いた非軸上電流駆動としては世界最高値である。また理論的にはるかに効率が良い第1共鳴波（英国MAST装置）とそん色ない値でもある。さらに定常制御に関しては、ホール素子を用いて積分誤差の無い電磁計測と位置制御法、粒子注入周期帰還制御法の開発と循環レベル制御により放電時間820秒の世界記録を達成した。
これらの成果について、2014国際核融合エネルギー会議において4件の発表を行った。加えて無運動注入の無いシステムで、自発ダイバータ磁場配位の形成過程で流れ場が形成されること、粒子供給により反転分形成がおきるなど、粒子循環と運動量制御に新たな課題を見いだしている。
平成27年2月現在で200度高温壁（タングステン溶射SUS板、加熱ヒータ、銅製一様加熱板、熱電対から構成）実験を開始し、壁温度依存性に加えて今後様々な観点での定常制御システム構築（ガス圧一定、吸蔵率一定、放出束一定等）によりさらなる前進が可能である。最新のデータも含めて　“核融合装置の定常運転”に関わる国際専門家会議（2015.5）において、招待講演、口頭発表、2件のポスター発表を行う。

Strategy for Future Research Activity

24-26年度では、1)高温壁（HW）設置を完了し、200度までの工学試験を終えた。物理研究としては、2)駆動プローブ、高速カメラPIV法を用いたSOL流速分布計測に加えて分光器を用いたDoppler計測によるトロイダル・ポロイダル流計測、3)高ポロイダルベータ（~ 4-5）平衡配位における高電流駆動（35kA）とその維持(～80秒)、4)高周波による定常トカマク運転で820秒間維持に成功、5)第２高調波電流駆動により66kAの達成　など、各階層で主要な個別課題に関して大きな成果を収めることができた。粒子制御に関しては、6)PdCu薄膜を用いた水素透過束の多点計測を世界ではじめて実施し、壁吸蔵の空間構造について研究を進めている。7)静的ガスバランス法に加えて、ガス入射変調による粒子循環システムの応答関数を世界で初めて見いだした。
27年度では高温壁を用い、温度制御下での粒子循環に取り組む。具体的には1)ガス変調、パワー変調、相互作用領域変調に加えて、新たに壁温度変調に対する応答関数の取得とそれによる粒子循環特性の解明に取り組む。一方コア研究としては、2)8.5GHz電流駆動用パワーの増強と28GHz第2高調波（筑波大学との連携）によるさらなる駆動効率の向上に取り組み、100kAの電流駆動を目指す。8.2GHzとの複合電流駆動を用いて静電波電流駆動の原理検証にも取り組む。さらに、3)こうした非誘導電流駆動プラズマのもとで自発プラズマ回転機構の解明に取り組む。このために50chのファイバーを用いてトロイダル・ポロイダル同時計測を実施する。4)単一ヌル-divertor配位などでの長時間運転における粒子供給・粒子循環とプラズマ電流の維持プラズマ回転の維持に向けた制御手法の確立を目指す。

Research Products

• [Journal Article] Particle balance in long duration RF driven plasmas on QUEST (2015)
  • Author(s): K. Hanada, H. Zushi, N. Yoshida, N. Yugami, T. Honda, 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, and Y. K. M. Peng
  • Journal Title: Journal of Nuclear Materials Volume: 463 Pages: 1084-1086
  • DOI: 10.1016/j.jnucmat.2015.01.013
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Effects of surface conditions on the plasma-driven permeation behavior through a ferritic steel alloy observed in VEHICLE-1 and QUEST (2015)
  • Author(s): H. Zhou, Y. Hirooka, H. Zushi, A. Kuzmin, N. Ashikawa, T. Muroga, A. Sagara, The QUEST group
  • Journal Title: Journal of Nuclear Materials Volume: 463 Pages: 1066-1070
  • DOI: 10.1016/j.jnucmat.2014.10.092
  • Peer Reviewed / Open Access
• [Journal Article] Dynamical programming based turbulence velocimetry for fast visible imaging of tokamak plasma (2015)
  • Author(s): Santanu Banerjee, H. Zushi, N. Nishino, K. Mishra, T. Onchi, A. Kuzmin, Y. Nagashima, K. Hanada, K. Nakamura, H. Idei, M.Hasegawa, and A. Fujisawa
  • Journal Title: Review of Scientific Instruments Volume: 86 Pages: 033505-1～8
  • DOI: 10.1063/1.4914838
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Global gas balance and peculiarities of atomic hydrogen influence on hydrogen wall inventory in steady-state operation of QUEST tokamak (2015)
  • Author(s): A.Kuzmin, H. Zushi, I.Takagi, S.K. Sharma, A. Rusinov, Y. Inoue, Y. Hirooka, H. Zhou, M. Kobayashi, M. Sakamoto, K. Hanada, N. Yoshida, K. Nakamura, A. Fujisawa, M.Matsuoka, H. Idei, Y. Nagashima, M. Hasegawa, T.Onchi, S. Banerjee, K. Mishira
  • Journal Title: Journal of Nuclear Materials Volume: in press Pages: in press
  • DOI: 10.1016/j.jnucmat.2014.12.092
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Observation of heat flux and plasma flow in scrapr off layer in QUEST (2015)
  • Author(s): T. Onchi, Y. Mahira, K. Nagaoka, S. Tashima, S. Banerjee, K. Mishra, H. Idei, K. Hanada, K. Nakamura, A. Fujisawa, Y. Nagashima, M.Hasegawa, K. Matsuoka, A. Kuzmin, O. Watanabe, S. Kawasaki, H. Nakashima, A. Higashijima
  • Journal Title: Journal of Nuclear Materials Volume: in press Pages: in press
  • DOI: 10.1016/j.jnucmat.2014.11.136
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Plasma current start-up experiments using a dielectric-loaded waveguide array antenna in the TST-2 spherical tokamak (2014)
  • Author(s): T. Wakatsuki, A. Ejiri, T. Shinya, Y. Takase, H. Furui, J. Hiratsuka, K. Imamura, T. Inada, H. Kakuda, H. Kasahara, Y. Nagashima, K. Nakamura, A. Nakanishi, T. oosako, K. Saito, T. Seki, M. Sonehara, H. Togashi, S. Tsuda, N.Tsujii and T. Yamaguchi
  • Journal Title: Nuclear Fusion Volume: 54 Pages: 093014-1～14
  • DOI: 10.1088/0029-5515/54/9/093014
  • Peer Reviewed / Open Access
• [Journal Article] Determination of the system function for the particle circulation process using perturbation technique in QUEST (2014)
  • Author(s): H. Zushi, A. Kuzmin, I. Takagi, S.K. Sharma, M. Hasegawa, M. Kobayashi, Y. Hirooka, N. Yoshida, A. Rusinov, A. Inoue, H. Zhou,A. Fujisawa, K. Hanada, H. Idei, K. Nakamura, Y. Nagashima, et.al.
  • Journal Title: Proc. 25th Fusion Energy Conference (FEC 2014) Volume: EX/P1-36 Pages: P1-36-1～8
  • Peer Reviewed / Open Access
• [Journal Article] Fully Non-Inductive Current Drive Experiments Using 28GHz and 8.2GHz Electron Cyclotron Waves in QUEST (2014)
  • Author(s): H. Idei, H. Zushi, K. Hanada, E. Kalinnikova, M. Sakaguchi, T. Itado,H. Nakashima, K. Nakamura, A. Fujisawa, Y. Nagashima, et.al.
  • Journal Title: Proc. 25th Fusion Energy Conference (FEC 2014) Volume: EX/P1-38 Pages: P1-38-1～8
  • Peer Reviewed / Open Access
• [Journal Article] Self Organization of High βp Plasma Equilibrium with an Inboard Poloidal Null Sustained by Fully Non-inductive Current Drive in QUEST (2014)
  • Author(s): Kishore Mishra, H. Zushi, H. Idei, T. Onchi, M. Hasegawa and QUEST team
  • Journal Title: Proc. 25th Fusion Energy Conference (FEC 2014) Volume: EX/P1-39 Pages: P1-39-1～8
  • Peer Reviewed / Open Access
• [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, et.al.
  • Journal Title: Proc. 25th Fusion Energy Conference (FEC 2014) Volume: EX/P1-39 Pages: P1-39-1～8
  • Peer Reviewed / Open Access
• [Journal Article] Shape Reconstruction of RF-Driven Divertor Plasma on QUEST (2014)
  • Author(s): Nakamura, Kazuo; Fujita, H.; Liu, X. L.; Xue, E. B.; Xia, Fan; Mitarai, Osamu; Kurihara, Kenichi; Kawamata, Y.; Sueoka, M.; Hasegawa, Makoto; Tokunaga, Kazutoshi; Zushi, H., et.al.
  • Journal Title: IEEE TRANSACTIONS ON PLASMA SCIENCE Volume: 42 Pages: 2309-2312
  • Peer Reviewed / Open Access
• [Journal Article] Note: Multi-pass Thomson scattering measurement on the TST-2 spherical tokamak (2014)
  • Author(s): H.Togashi, A.Ejiri, J.Hiratsuka, K.Nakamura, Y.Takase, et.al.
  • Journal Title: REVIEW OF SCIENTIFIC INSTRUMENTS Volume: 85 Pages: 056103-1～3
  • DOI: 10.1063/1.4878260
  • Peer Reviewed / Open Access
• [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
  • DOI: 10.1088/1742-6596/511/1/012041
  • Open Access
• [Journal Article] Injection and Confinement of a Laser Pulse in an Optical Cavity for Multi-Pass Thomson Scattering Diagnostics in the TST-2 Spherical Tokamak Device (2014)
  • Author(s): Hiro Togashi, Akira Ejiri, Makoto Hasegawa, Junichi Hiratsuka, Yoshihiko Nagashima, et.al.
  • Journal Title: Plasma and Fusion Research Volume: 9 Pages: 1202005-1～3
  • DOI: 10.1585/pfr.9.1202005
  • Peer Reviewed / Open Access
• [Journal Article] Identification of Quasi-Periodic Nonlinear Waveforms in Turbulent Plasmas (2014)
  • Author(s): Shigeru Inagaki, Yudai Miwa, Tatsuya Kobayashi, Takuma Yamada, Yoshihiko Nagashima, et.al.
  • Journal Title: Plasma and Fusion Research Volume: 9 Pages: 1201016-1～2
  • DOI: 10.1585/pfr.9.1201016
  • Peer Reviewed / Open Access
• [Journal Article] Turbulence in Toroidal Plasma (2014)
  • Author(s): Akihide Fujisawa
  • Journal Title: Proceedings of the 12th Asia Pacific Physics Conference Volume: 1 Pages: 015005-1～8
  • Peer Reviewed / Open Access
• [Journal Article] Electron Bernstein wave heating and emission measurement through the very narrow OXB mode conversion window in the LHD (2014)
  • Author(s): H.Igami, S.Kubo, T.Shimozuma, Y. Yoshimura, H. Takahashi, M. Nishiura, et.al.
  • Journal Title: RADIOFREQUENCY POWER IN PLASMAS: Proceedings of the 20th Topical Conference Volume: - Pages: 1580-1～4
  • DOI: 10.1063/1.4864595
• [Journal Article] Development of a Local Current Diagnostic using a Small Rogowski Coil for a Spherical Tokamak Plasma in TST-2 (2014)
  • Author(s): Hirokazu FURUI, Yoshihiko NAGASHIMA, Yuichi TAKASE, at.al.
  • Journal Title: Plasma and Fusion Research Volume: 9 Pages: 3402078-1～4
  • DOI: 10.1585/pfr.9.3402078
  • Peer Reviewed / Open Access
• [Journal Article] Determination of waveguide mode content using irradiance moments (2014)
  • Author(s): Jawla, Sudheer; Shapiro. M.A.; Idei. H; et.al.
  • Journal Title: Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on Volume: - Pages: 14771080-1～2
  • DOI: 10.1109/IRMMW-THz.2014.6956423
• [Journal Article] End plate biasing experiments in linear magnetized plasmas (2014)
  • Author(s): T.Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, et.al.
  • Journal Title: NUCLEAR FUSION Volume: 54 Pages: 114010-1～5
  • DOI: 10.1088/0029-5515/54/11/114010
  • Peer Reviewed / Open Access
• [Journal Article] Thermal imaging of plasma with a phased array antenna in QUEST (2014)
  • Author(s): Kisore Mishra, H.Idei, H.Zushi, et.al.
  • Journal Title: REVIEW OF SCIENTIFIC INSTRUMENTS Volume: 85 Pages: 11E808-1～4
  • DOI: 10.1063/1.4889903
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Analytical Solution of High βp Equilibria with Natural Inboard Poloidal Null Configuration Obtained in the Spherical Tokamak QUEST (2014)
  • Author(s): Kisore Mishra, Hideki Zushi, Hiroshi Idei, Saya Tashima, Santanu Banerjee, Makoto Hasegawa, Kazuaki Hanada, et.al.
  • Journal Title: Plasma and Fusion Research Volume: 9 Pages: 3402093-1～5
  • DOI: 10.1585/pfr.9.3402093
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Role of stochasticity in turbulence and convective intermittent transport at the scrape off layer of Ohmic plasma in QUEST (2014)
  • Author(s): Santanu Banerjee, H. Zushi, N. Nishino, K.Hanada, M. Ishiguro, S. Tashima, et.al.
  • Journal Title: PHYSICS OF PLASMAS Volume: 21 Pages: 072311-1～9
  • DOI: 10.1063/1.4890359
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Adaptive array technique for differential-phase reflectometry in QUEST (2014)
  • Author(s): H. Idei, K.Nagata, K. Mishra, K. Yamamoto, T. Itado, R. Akimoto, K. Hanada, and H. Zushi
  • Journal Title: REVIEW OF SCIENTIFIC INSTRUMENTS Volume: 85 Pages: 11D842-1～4
  • DOI: 10.1063/1.4891710
  • Peer Reviewed / Open Access
• [Journal Article] First Wall Particle Flux Measurements by an F82H Permeation Probe in QUEST (2014)
  • Author(s): Haishan Zhou, Yoshi Hirooka, Hideki Zushi, Arseniy Kuzmin and the QUEST group
  • Journal Title: Plasma and Fusion Research Volume: 9 Pages: 3405041-1～4
  • DOI: 10.1585/pfr.9.3405041
  • Peer Reviewed / Open Access
• [Journal Article] Two-Fluid Equilibrium Considerations of Te/Ti»1, Collisionless ST Plasmas Sustained by RF Electron Heating (2014)
  • Author(s): Yueng-Key Martin Peng, Akio Ishida, Yuichi Takase, Akira Ejiri, Naoto Tsujii, Takashi Maekawa, Masaki Uchida, Hideki Zushi, et.al.
  • Journal Title: Plasma and Fusion Research Volume: 9 Pages: 3403146-1～6
  • DOI: 10.1585/pfr.9.3403146
  • Peer Reviewed / Open Access
• [Journal Article] Scrape Off Layer Flow Characteristics in the Spherical Tokamak QUEST (2014)
  • Author(s): Santanu Banerjee, H. Zushi, N.Nishino, Y. Mahira, K. Nagaoka, K. Mishra, et.al.
  • Journal Title: Proceedings of the 12th Asia Pacific Physics Conference, JPS Conf. Proc. Volume: 1 Pages: 015036-1～5
  • Open Access
• [Presentation] 球状トカマクQUESTにおける近赤外干渉分光器を用いたヘリウム23S-23P発光線の局所計測 (2015)
  • Author(s): 大金修平、四竈泰一、図子秀樹、蓮尾昌裕
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 摂動と非定常応答関数を用いた確率論的粒子循環制御法の開発 (2015)
  • Author(s): 図子秀樹、A. Kuzmin、高木郁二、小林政弘、長谷川真、花田和明、藤澤彰英、出射浩、永島芳彦、中村一男、恩地拓己、福山淳、高瀬雄一、武藤敬、QUESTグループ
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] PdCu透過膜を用いた水素原子プローブの開発 (2015)
  • Author(s): 大中雅侑、高木郁二、図子秀樹、Kuzmin Arseniy Aleksandrovich
  • Organizer: 日本原子力学会2015年春の年会
  • Place of Presentation: 茨城大学日立キャンパス
  • Year and Date: 2015-03-20 – 2015-03-22
• [Presentation] ＱＵＥＳＴにおける定常非誘導電流駆動と高温壁下の粒子循環研究 (2015)
  • Author(s): 図子秀樹
  • Organizer: 平成26年度双方向型共同研究成果報告会
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2015-01-22 – 2015-01-22
• [Presentation] ＱＵＥＳＴにおけるダイバータプラズマ断面の再構成高精度化と実時間表示 (2015)
  • Author(s): 中村一男
  • Organizer: 平成26年度双方向型共同研究成果報告会
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2015-01-22 – 2015-01-22
• [Presentation] 球状トカマクQUESTにおけるプラズマ対向壁の物理・化学特性に関する研究 (2015)
  • Author(s): 渡辺英雄
  • Organizer: 平成26年度双方向型共同研究成果報告会
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2015-01-22 – 2015-01-22
• [Presentation] 摂動法を用いた粒子循環系応答関数の決定と定常制御への適用 (2015)
  • Author(s): 図子秀樹
  • Organizer: 平成26年度LHD計画共同研究成果報告会（プラズマ分野）
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2015-01-15 – 2015-01-15
• [Presentation] 粒子バランスモデリングの状況及び報告書の内容について (2015)
  • Author(s): 花田和明
  • Organizer: 「核融合炉定常プラズマにおける粒子バランスとトリチウム蓄積のモデリングに関する検討」成果報告会
  • Place of Presentation: 九州大学応用力学研究所
  • Year and Date: 2015-01-15 – 2015-01-15
• [Presentation] Particle Orbit in RF-Driven Divertor Plasma on QUEST (2014)
  • Author(s): Md Muhbub Alam
  • Organizer: 3rd A3 Warkshop on ST
  • Place of Presentation: オークラアカデミアパークホテル（千葉県木更津市）
  • Year and Date: 2014-12-15 – 2014-12-17
• [Presentation] Shape Reproduction in RF-Driven Divertor Plasma on QUEST (2014)
  • Author(s): Kazuo Nakamura
  • Organizer: 3rd A3 Warkshop on ST
  • Place of Presentation: オークラアカデミアパークホテル（千葉県木更津市）
  • Year and Date: 2014-12-15 – 2014-12-17
• [Presentation] Enhancement of electron density and density skewness in blobs induced by fuel gas puffing in ECR plasmas on QUEST (2014)
  • Author(s): Yuya Oyama
  • Organizer: 3rd A3 Warkshop on ST
  • Place of Presentation: オークラアカデミアパークホテル（千葉県木更津市）
  • Year and Date: 2014-12-15 – 2014-12-17
• [Presentation] Calorimetric Measurement of Direct Loss of Energetic Electrons with Movable Limiters in Non-Inductive Current Driven Limiter Plasma with a microwave of 8.2 GHz on QUEST (2014)
  • Author(s): Natsuhiko Hamada
  • Organizer: 3rd A3 Warkshop on ST
  • Place of Presentation: オークラアカデミアパークホテル（千葉県木更津市）
  • Year and Date: 2014-12-15 – 2014-12-17
• [Presentation] QUEST壁モデルを用いた定常運転時の水素リサイクリング挙動の解析 (2014)
  • Author(s): 花田 和明
  • Organizer: 核融合エネルギーフォーラムの定常運転サブクラスター会合
  • Place of Presentation: 九州大学応用力学研究所
  • Year and Date: 2014-12-12 – 2014-12-12
• [Presentation] 位相測定・制御によるミリ波・マイクロ波要素機器の開発 (2014)
  • Author(s): 出射浩
  • Organizer: 平成26年度 文部科学省研究大学強化促進事業 九州大学テクノロジーフォーラム2014
  • Place of Presentation: 東京国際フォーラム
  • Year and Date: 2014-12-03 – 2014-12-03
• [Presentation] QUEST 装置におけるミリ波・マイクロ波帯電子サイクロトロン波を用いた完全非誘導電流駆動 (2014)
  • Author(s): 出射浩
  • Organizer: プラズマ・核融合学会第31回年会 / PLASMA2014
  • Place of Presentation: 朱鷺メッセ(新潟市）
  • Year and Date: 2014-11-18 – 2014-11-21
  • Invited
• [Presentation] Plasma wall interaction in long duration plasmas on ST (2014)
  • Author(s): Kazuaki Hanada
  • Organizer: プラズマ・核融合学会第31回年会 / PLASMA2014/シンポジウム9：定常プラズマ運転進展に向けた物理工学課題の国際連携研究
  • Place of Presentation: 朱鷺メッセ(新潟市）
  • Year and Date: 2014-11-18 – 2014-11-21
• [Presentation] Spontaneous rotation, flow reversal, and flow sustainment in non-inductive QUEST plasma (2014)
  • Author(s): H. Zushi, K. Mishra, T. Onchi, H. Togashi, K. Nakamura, T. Yamaguchi, A. Ejiri, T. Shikama, K. Nagaoka, H. Idei, K. Hanada, M. Hasegawa, A. Fujisawa, K. Nakamura, Y. Nagashima, A. Kuzmin, O. Watanabe, A. Higashijima, S. Kawasaki, Nakashima, A. Fukuyama, Y. Takase, QUEST group
  • Organizer: プラズマ・核融合学会第31回年会 / PLASMA2014
  • Place of Presentation: 朱鷺メッセ(新潟市）
  • Year and Date: 2014-11-18 – 2014-11-21
• [Presentation] Breakdown by 2nd harmonic ECRH on QUEST (2014)
  • Author(s): Hiroki MIURA, Kazuaki HANADA, Hideki ZUSHI, Kazuo NAKAMURA, Akihide FUJISAWA, Hiroshi IDEI, Yoshihiko NAGASHIMA,et.al.
  • Organizer: The 24th International Toki Conference (ITC-24) on
  • Place of Presentation: Ceratopia Toki, Toki-city, Gifu, Japan
  • Year and Date: 2014-11-04 – 2014-11-07
• [Presentation] Matrix Converter in Power Electronics as a Power Supply for Plasma (2014)
  • Author(s): I. Jamil, R. Jamil, K. Nakamura, K. Tokunaga, M. Hasegawa, K. Araki
  • Organizer: The 24th International Toki Conference (ITC-24) on
  • Place of Presentation: Ceratopia Toki, Toki-city, Gifu, Japan
  • Year and Date: 2014-11-04 – 2014-11-07
• [Presentation] Shape Reproduction and Particle Orbit in RF-Driven Divertor Plasma on QUEST (2014)
  • Author(s): K. Nakamura, Md. Mahbub Alam, F. Xia, O. Mitarai, M. Hasegawa, K. Tokunaga, K. Araki, H. Zushi, K. Hanada, A. Fujisawa, H. Idei, Y. Nagashima, S. Kawasaki, H. Nakashima, A. Higashijima
  • Organizer: The 24th International Toki Conference (ITC-24) on
  • Place of Presentation: Ceratopia Toki, Toki-city, Gifu, Japan
  • Year and Date: 2014-11-04 – 2014-11-07
• [Presentation] Spontaneous Toroidal Rotation, Flow Reversal, and Flow Sustainment in Non-Inductive Steady State Tokamak Plasma on QUEST (2014)
  • Author(s): H. Zushi, K. Mishra a, T. Onchi, A. Kuzmin, H. Idei and the QUEST Group
  • Organizer: The 24th International Toki Conference (ITC-24) on
  • Place of Presentation: Ceratopia Toki, Toki-city, Gifu, Japan
  • Year and Date: 2014-11-04 – 2014-11-07
  • Invited
• [Presentation] Thickness of deposition layer monitoring with a color detector on QUEST (2014)
  • Author(s): N.Yoshida, K.Hanada
  • Organizer: IEA-SSO Meeting
  • Place of Presentation: Saint Petersburg, Russia
  • Year and Date: 2014-10-15 – 2014-10-15
• [Presentation] Determination of the System Function for the Particle Circulation Process Using Perturbation Technique in QUEST (2014)
  • Author(s): H. Zushi,, A. Kuzmin, I. Takagi, S.K. Sharma, M. Hasegawa, M. Kobayashi, Y. Hirooka, N. Yoshida, A. Rusinov, A. Inoue, H. Zhou,A. Fujisawa, K. Hanada, H. Idei, K. Nakamura, Y. Nagashima, et.al.
  • Organizer: 25th Fusion Energy Conference (FEC 2014)
  • Place of Presentation: Saint Petersburg, Russia
  • Year and Date: 2014-10-13 – 2014-10-18
• [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, et.al.
  • Organizer: 25th Fusion Energy Conference (FEC 2014)
  • Place of Presentation: Saint Petersburg, Russia
  • Year and Date: 2014-10-13 – 2014-10-18
• [Presentation] Fully Non-Inductive Current Drive Experiments Using 28 GHz and 8.2 GHz Electron Cyclotron Waves in QUEST (2014)
  • Author(s): H. Idei, H. Zushi, K. Hanada, E. Kalinnikova, M. Sakaguchi, T. Itado,H. Nakashima, K. Nakamura, A. Fujisawa, Y. Nagashima, et.al.
  • Organizer: 25th Fusion Energy Conference (FEC 2014)
  • Place of Presentation: Saint Petersburg, Russia
  • Year and Date: 2014-10-13 – 2014-10-18
• [Presentation] Self Organization of High Beta_p Plasma Equilibrium with an Inboard Poloidal Null Sustained by Fully Non-Inductive Current Drive in QUEST (2014)
  • Author(s): Kishore Mishra, H. Zushi, H. Idei, T. Onchi, M. Hasegawa and 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] Divertor plasma shape reconstruction from two kinds of magnetic sensors and eddy current effect on QUEST (2014)
  • Author(s): Kazuo Nakamura
  • Organizer: Symposium on Fusion Technology (SOFT2014)
  • Place of Presentation: San Sebastian, Spain
  • Year and Date: 2014-09-29 – 2014-10-03
• [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] Breakdown by Second harmonic ECRH on QUEST (2014)
  • Author(s): H. MIURA, K. HANADA, H. ZUSHI, K. NAKAMURA, A. FUJISAWA, S. KAWASAKI, H. IDEI, Y. NAGASHIMA, M. HASEGAWA, H. NAKASHIMA, A. HIGASHIJIMA
  • 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] Quaternion Analysis of Matrix Converter and Three-Phase Power Electronic Circuit (2014)
  • Author(s): Kazuo Nakamura, Hiroki Fujita, Xiaolong Liu, Erbing Xue, Osamu Mitarai, Makoto Hasegawa, Kazutoshi Tokunaga, Kuniaki Araki, Hideki Zushi, Kazuaki Hanada, Akihide Fujisawa, Hiroshi Idei, Yoshihiko Nagashima, et.al.
  • Organizer: International Conference on Electrical Engineering (ICEE) 2014
  • Place of Presentation: Ramada Plaza Jeju Hotel, Hehu, Korea
  • Year and Date: 2014-06-15 – 2014-06-19
• [Presentation] Edge turbulence characteristics investigated in open magnetic field line configuration as a function of magnetic mirror ratio in QUEST (2014)
  • Author(s): Santanu Banerjee, H. Zushi, N. Nishino, K. Mishra, K. Hanada, S. Tashima, K. Nakamura, H. Idei, M. Hasegawa, A. Fujisawa, Y. Nagashima and K. Matsuoka
  • Organizer: 4th Asia Pacific Transport Working Group(APTWG) International Conference
  • Place of Presentation: 九州大学筑紫キャンパス
  • Year and Date: 2014-06-10 – 2014-06-13
• [Presentation] 大型装置QUESTにおけるプラズマ制御とそのシステム (2014)
  • Author(s): 長谷川真
  • Organizer: RIAMフォーラム2014
  • Place of Presentation: 九州大学筑紫キャンパス
  • Year and Date: 2014-06-05 – 2014-06-06
• [Presentation] Adaptive Array Technique for Differential Phase Reflectometry in the QUEST (2014)
  • Author(s): H. Idei, K. Nagata, K. Mishra, M. Yamamoto, T. Itado, R. Akimoto, K. Hanada, H. Zushi and QUEST team
  • Organizer: 20th Topical Conference on High Temperature Plasma Diagnostics(HTPD 2014)
  • Place of Presentation: Atlanta,Georgia, USA
  • Year and Date: 2014-06-01 – 2014-06-05
• [Presentation] Thermal imaging of plasma with a phased array antenna in the spherical tokamak QUEST (2014)
  • Author(s): Kishore Mishra, H. Idei, H. Zushi, K. Nagata, R. Akimoto, K. Hanada, M. Hasegawa, K. Nakamura, A. Fujisawa, Y. Nagashima, S. Banerjee, T. Onchi and A. Kuzmin
  • Organizer: 20th Topical Conference on High Temperature Plasma Diagnostics(HTPD 2014)
  • Place of Presentation: Atlanta,Georgia, USA
  • Year and Date: 2014-06-01 – 2014-06-05
• [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. Kuzmina, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, O. Watanabe, T. Onchi, et.al.
  • 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] Observation of heat flux and plasma flow in scrape off layer in QUEST (2014)
  • Author(s): T. Onchi, H. Zushi, Y. Mahira, K. Nagaoka, S. Tashima, S. Banerjee, K. Mishra, H. Idei, K. Hanada, K. Nakamura, A. Fujisawa, Y. Nagashima, et.al.
  • 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] Global gas balance and influence of atomic hydrogen irradiation on the wall inventory in steady-state operation of QUEST tokamak (2014)
  • Author(s): A. Kuzmin, H. Zushi, I. Takagia , S. K. Sharma , Y. Hirooka , H.Zhou , M. Kobayashi, M. Sakamoto , K. Hanada, N. Yoshida, K. Nakamura, A. Fujisawa, et.al.
  • 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] Effects of plasma exposure on tritium behavior of long term installed samples on first wall in spherical tokamak QUEST (2014)
  • Author(s): K. Tokunaga, M. Matsuyama , S. Abe, S. Nagata, B. Tsuchiya, M. Tokitani, K. Araki, T. Fujiwara, Y. Miyamoto, M. Hasegawa, K. Nakamura, K. Hanada, H. Zushi
  • 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] Effects of surface conditions on the plasma-driven permeation behavior through a ferritic steel alloy observed in VEHICLE-1 and QUEST (2014)
  • Author(s): H. Zhou, Y. Hirooka, N. Ashikawa, T. Muroga, A. Sagara, H. Zushi , A. Kuzmin and the QUEST group
  • 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] Retention and Desorption of Hydrogen in Plasma Facing Wall of QUEST (2014)
  • Author(s): N. Yugami, N. Yoshida, T. Fujiwara, K. Araki, R. Yoshihara, H. Watanabe, K. Hanada, H. Zushi, Y. Hatano, Y. Oya and K. Okuno
  • 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] Research and Development of 2-frequency (110/138 GHz) FADIS for JT-60SA ECH/ECCD Experiments (2014)
  • Author(s): H. Idei, S. Moriyama, T. Kobayashi, A. Isayama, M. Sakaguchi, W. Kasparek
  • Organizer: 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
  • Place of Presentation: Nara Prefectural New Public Hal
  • Year and Date: 2014-04-22 – 2014-04-25
• [Presentation] High βp plasma formation using off-axis ECCD in Ohmic heated plasma in the spherical tokamak QUEST (2014)
  • Author(s): Kishore Mishra, H. Zushi, H. Idei, M. Hasegawa, K. Hanada and QUEST team
  • Organizer: 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
  • Place of Presentation: Nara Prefectural New Public Hall
  • Year and Date: 2014-04-22 – 2014-04-25
• [Remarks] 基盤研究Ｓ ニュースレター
  • URL: http://www.triam.kyushu-u.ac.jp/pdf/newsletter.pdf