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Apparent enhancement of electron temperature in the wake of spherical probe in a flowing plasma

Authors
Journal
Planetary and Space Science
0032-0633
Publisher
Elsevier
Publication Date
Volume
22
Issue
5
Identifiers
DOI: 10.1016/0032-0633(74)90156-1

Abstract

Abstract An apparent enhancement of electron temperature has been observed in the wake of a conducting sphere in a flowing laboratory plasma, using as a probe a segment of the sphere itself. It is considered to be due to the negative potential well that is present in the wake, and which causes the velocity distribution of the electrons collected on the rear hemisphere to be non-Maxwellian. This interpretation of the phenomena has been checked by numerical simulation.

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