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Temperature Anisotropy Measurement Using Diamagnetic Loop Array

Temperature Anisotropy Measurement Using Diamagnetic Loop Array

Authors :
Katsumata, Ryota
Inutake, Masaaki
Ichimura, Makoto
Hino, Noriaki
Onda, Hideaki
Katanuma, Isao
Hojo, Hitoshi
Atsushi Mase, Atsushi Mase
Syoichi Miyoshi, Syoichi Miyoshi
Source :
Japanese Journal of Applied Physics; July 1992, Vol. 31 Issue: 7 p2249-2249, 1p
Publication Year :
1992

Abstract

The anisotropy of the ion distribution function in the velocity space is observed in the ion cyclotron range of frequency heating experiments on the tandem mirror GAMMA 10. The anisotropy, defined as T?/T//(ratio of ion temperatures perpendicular and parallel to the magnetic field line), is evaluated quantitatively using three diamagnetic loops aligned in the direction of the magnetic field line. Depending on the anisotropy and the plasma pressure, fluctuations below the ion cyclotron frequency are excited. In terms of the quantitative estimation of the anisotropy, it is established clear that the parameter region in which the fluctuations are observed agrees well with a theoretically predicted region of the convectively unstable Alfvén ion cyclotron mode.

Details

Language :
English
ISSN :
00214922 and 13474065
Volume :
31
Issue :
7
Database :
Supplemental Index
Journal :
Japanese Journal of Applied Physics
Publication Type :
Periodical
Accession number :
ejs56116399
Full Text :
https://doi.org/10.1143/JJAP.31.2249