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Title: Spontaneous Formation of Spherical Tokamak by ECH on LATE
Authors: Tanaka, Hitoshi  kyouindb  KAKEN_id
Abe, Yuichiro
Hayashi, Kazunori
Yamada, Jun
Matsumoto, Taisuke
Yoshinaga, Tomokazu
Uchida, Masaki  kyouindb  KAKEN_id
Yamaguchi, Soichiro
Maekawa, Takashi
Maebara, Sunao
Imai, Tsuyoshi
Author's alias: 田中, 仁
林, 和則
打田, 正樹
山口, 聡一朗
前川, 孝
前原, 直
今井, 剛
Keywords: spherical tokamak
spontaneous formation
electron cyclotron heating
Issue Date: 2005
Publisher: Institute of Electrical Engineers of Japan
Journal title: IEEJ Transactions on Fundamentals and Materials
Volume: 125
Issue: 11
Start page: 919
End page: 924
Abstract: Spontaneous formation of spherical tokamak is observed during a microwave discharge at the electron cyclotron resonance (ECR) under a steady vertical magnetic field. In the course of slow plasma current increase, a fast rise of current (usually within several ms) occurs and the magnetic field topology changes drastically from open field type to closed one. After this current jump, a steady plasma current is maintained. The plasma current in the steady stage is proportional to the strength of the vertical field which balances the outward hoop force of the plasma current and maintains the MHD equilibrium. When a 5GHz, 130kW, 60ms microwave power is injected at 85G vertical field, plasma current of 6.8kA is obtained.
Rights: © 2005 by the Institute of Electrical Engineers of Japan.
This PDF is deposited under the publisher's permission.
URI: http://hdl.handle.net/2433/264607
DOI(Published Version): 10.1541/ieejfms.125.919
Appears in Collections:Journal Articles

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