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<RESEARCH REPORT>Tail Anisotropy Instability during Plasma Current Rise by Lower-Hybrid Waves in a Tokamak
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- YAMAGIWA Mitsuru
- Institute of Plasma Physics, Nagoya University
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Description
Tail anisotropy instability during lower-hybrid current rise is investigated. Tail formation by lower-hybrid waves is studied by using a Fokker-Planck equation combined with the return field and the rf associated terms. Quasi-linear relaxation of the electron tail distribution under the influence of the plasma waves excited due to the instability is examined. It is found that the instability condition is related to the strength of the parallel diffusion by lower-hybrid waves and the ratio of the electron cyclotron frequency to the electron plasma frequency. The time scale between the instability spikes and the suppression of the instability by electron cyclotron heating are also discussed.
Journal
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- Research report
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Research report 756 1-39, 1986-01
National Institute for Fusion Science
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Details 詳細情報について
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- CRID
- 1570572701837435264
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- NII Article ID
- 110000012059
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- NII Book ID
- AA0081640X
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- ISSN
- 04694732
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- Text Lang
- en
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- Data Source
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- CiNii Articles
