Study of Runaway Electron Transport in Edge Stochastic Magnetic Field in the JFT-2M Tokamak

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概要

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• The radial transport of runaway electrons has been studied in ohmically heated JFT-2M plasmas with an externally applied helical magnetic field. Clear decreases in both the hard x-ray emission and edge electron temperature are observed with application of the external helical magnetic field. This indicates that the transport of both runaway electrons and electron thermal energy is enhanced at the edge stochastic magnetic field produced by the external helical field. The diffusion coefficient of runaway electrons is evaluated in the core and the edge from the temporal behavior of the hard x-ray emission. The diffusion coefficient in the edge stochastic magnetic field is about D_s = 1m^2/s with a radial field strength of |B_r| / B^t〜2 x 10^<-3>. This is four orders of magnitude smaller than that predicted by the transport along the stochastic magnetic field. The large shift of the drift surface of such high energy electrons from the magnetic surface may explain this significant reduction in transport. On the other hand, the enhancement of the thermal diffusivity in the presence of the helical field is consistent with the theoretical prediction.

• 社団法人プラズマ・核融合学会の論文
• 1994-08-25

著者

• Kozo Hoshino

  Graduate School Of Integrated Arts And Sciences Hiroshima University

• 竹内 秀夫

  Department Of Information Electronics School Of Engineering Nagoya University

• TAMAI Hiroshi

  Department of Pediatrics, Osaka Medical College

• Sugie Tatsuo

  Japan Atomic Energy Research Institute

• MORI Masahiro

  Department of Internal Medicine , Keio University

• Maeno M

  Department Of Fusion Plasma Research Japan Atomic Energy Research Institute

• SAKURAI Shinji

  Department of Tumor Pathology, Gunma University Graduate School of Medicine

• KAWASHIMA Hisato

  Department of Thermonuclear Fusion Research,Naka Fusion Research Establishment,Japan Atomic Energy R

• UESUGI Yoshihiko

  Department of Thermonuclear Fusion Research,Naka Fusion Research Establishment,Japan Atomic Energy R

• MIURA Yukitoshi

  Department of Thermonuclear Fusion Research,Naka Fusion Research Establishment,Japan Atomic Energy R

• SHOJI Teruaki

  Department of Thermonuclear Fusion Research,Naka Fusion Research Establishment,Japan Atomic Energy R

• Sakurai S

  Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University

• Fujita Takaaki

  Department Of Multimedia Engineering Graduate School Of Information Science And Technology Osaka Uni

• Fujita Takaaki

  Department Of Fusion Plasma Research Japan Atomic Energy Research Institute

• MORI Masahiro

  Colleget of General Education,Osaka University

• Hoshino K

  Japan Atomic Energy Res. Inst. Ibaraki Jpn

• Mori M

  Nagoya Univ. Nagoya Jpn

• Kawashima H

  Electrotechnical Laboratory Tsukuba

• MIURA Yukitoshi

  Japan Atomic Energy Research Institute

• Mori M

  National Lab. High Energy Physics (kek) Ibaraki

• TAKAMURA Shuichi

  Department of Electrical Engineering, Faculty of Engineering, Nagoya University

• KAWASHIMA Hisato

  Japan Atomic Energy Research Institute

• Kawashima H

  Japan Atomic Energy Res. Inst. Ibaraki Jpn

• NAGASHIMA Keisuke

  Department of Fusion Plasma Research, Japan Atomic Energy Research Institute

• Tamai Hiroshi

  Department Of Fusion Plasma Research Japan Atomic Energy Research Institute

• Sakurai Shinji

  Department Of Fusion Plasma Research Japan Atomic Energy Research Institute

• Sakurai Shinji

  Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University

• Shoji T

  Tohoku Univ. Sendai

• Maeno Masaki

  Division Of Thermonuclear Fusion Research Japna Atomic Energy Research Institute

• Kawashima Hisato

  Department Of Fusion Plasma Research Japan Atomic Energy Research Institute

• Takamura Shuichi

  Department Of Electrical Engineering Faculty Of Engineering Nagoya University

• Miura Yukitoshi

  Department Of Fusion Plasma Research Japan Atomic Energy Research Institute

• Shoji Teruaki

  Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute Tokai Establishment

• Tamai H

  Japan Atomic Energy Research Inst. Ibaraki Jpn

• Uesugi Y

  Faculty Of Engineering Kanazawa University

• Nagashima K

  Japan Atomic Energy Res. Inst. Kyoto Jpn

• Takeuchi Hiroshi

  Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute Tokai Establishment

• Mori Masahiro

  College Of General Education Osaka University

• Mori Masahiro

  Department Of Cancer Research Research Institute For Nuclear Medicine And Biology Hiroshima Universi

• 川島 寿人

  Department of Fusion Plasma Research, Japan Atomic Energy Research Institute

• Uesugi Yoshihiko

  Department of Electrical and Electronic Engineering, Kanazawa University

• TAKAMURA Shuichi

  Department of Electrical and Electronics Engineering, Faculty of Engineering, Aichi Institute of Technology,Toyota 470-0392, Japan

• TAKAMURA Shuichi

  Department of Electrical and Electronic Engineering, Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, Japan

• UESUGI Yoshihiko

  Department of Electrical and Electronic Engineering, Graduate School of Natural Science, Kanazawa University

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