Effects of Anisotropy of End Loss Electrons on Axial Potential Profile and Electron Transport in the End Region of a Tandem Mirror

概要

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Ternperattrre of end loss electrons is a base factor in data analysis of an axial potenti?tl profileand electron transport in an end region of a tanderta uauirror. In this analysis, 21 large ratio of atnagnetic field strength at a nairror throat to th;rt at an end w'?tll, xvhere the end loss electronternperature is nueastured, IIIIJ bring an error in evaltration of the erad loss electron tenaperature.In addition, anisotropy of the electron velocity distribution is also a sotrrce of error. By trsing abi-1VIaxwe1lian velocity distribtrtion of' end loss electrons as a test f'uuaction, relation between themeastrred electron teraaperattrre and the patrallel electron tettuperature at the rnirror throat is givenas a ftnnction of the temperattrre anisotropy. Then, theoretical predictions froraa a potential modelof the axial potential distribtntio?a and the electron transport are expressed by trsing the uneasttredelectron tezmperature. The present analysis shows that, when the tneasvrred teutaperattnre is fixed,the potential difference along a magnetic field line ?rnd the electr'on transport are taaaxittatrm fora nearly isotropic velocity distribtntion.
社団法人日本物理学会の論文
1997-12-15