Electron and ion heating in a high‐voltage toroidal theta pinch with parallel or antiparallel bias fields
作者:
R. L. Merlino,
G. C. Goldenbaum,
C. Chin‐Fatt,
Y. P. Chong,
A. W. DeSilva,
H. R. Griem,
R. A. Hess,
D. P. Murphy,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1981)
卷期:
Volume 24,
issue 12
页码: 2358-2371
ISSN:0031-9171
年代: 1981
DOI:10.1063/1.863318
出版商: AIP
数据来源: AIP
摘要:
Rapid heating of electrons and ions has been observed in a high‐voltage toroidal theta pinch with initial bias fields either parallel or antiparallel to the fast rising toroidal field. The elimination of rapid end losses has permitted higher electron temperatures to be attained. In contrast to the results of linear theta pinches in whichTe≲0.3Ti, it is now found thatTe∼Ti. The ion heating is similar to that observed in the linear case indicating that the effective microinstability heating process is maintained in a toroidal system. Higher temperatures were observed with antiparallel bias fields, but in both cases superthermal electron populations were observed indicating that the turbulent heating process involves electron tail formation.
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