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Investigation of ion acceleration effect influence on formation of ambipolar potential profile in the expander region

Authors :
A. G. Shalashov
E. D. Gospodchikov
R. A. Shaposhnikov
I. S. Abramov
Source :
Review of Scientific Instruments. 91:013514
Publication Year :
2020
Publisher :
AIP Publishing, 2020.

Abstract

This paper presents a study of plasma flux characteristics flowing out from the gas-dynamic mirror trap along the magnetic field lines to a metal wall. The main feature of the current work is that the effect of ion acceleration by ambipolar potential is considered in the expander region. The developed model also takes into account a possibility of transition from the collisional expansion of electron flow in the vicinity of the magnetic plug to the collisionless regime. The developed model allows calculation of the ambipolar potential profile and plasma characteristics in the expander region.

Details

ISSN :
10897623 and 00346748
Volume :
91
Database :
OpenAIRE
Journal :
Review of Scientific Instruments
Accession number :
edsair.doi.dedup.....40e388033d0c42af0f3bcb18d2a2784f