NDLI: Expansion of a multicomponent current-carrying plasma jet into vacuum

Content Provider	Springer Nature Link
Author	Krasov, V. I. Paperny, V. L.
Copyright Year	2017
Abstract	An expression for the ion−ion coupling in a multicomponent plasma jet is derived for an arbitrary ratio between the thermal and relative velocities of the components. The obtained expression is used to solve the problem on the expansion of a current-carrying plasma microjet emitted from the cathode surface into vacuum. Two types of plasmas with two ion components are analyzed: (i) plasma in which the ion components of equal masses are in the charge states Z $_{1}$= +1 and Z $_{2}$= +2 and (ii) plasma with ions in equal charge states but with the mass ratio m $_{1}$/m $_{2}$ = 2. It is shown that, for such plasmas, the difference between the velocities of the plasma components remains substantial (about 10% of the average jet velocity in case (i) and 15% in case (ii)) at distances of several centimeters from the emission center, where it can be measured experimentally, provided that its initial value at the emitting cathode surface exceeds a certain threshold. This effect is investigated as a function of the mass ratio and charge states of the ion components.
Starting Page	298
Ending Page	306
Page Count	9
File Format	PDF
ISSN	1063780X
Journal	Plasma Physics Reports
Volume Number	43
Issue Number	3
e-ISSN	15626938
Language	English
Publisher	Pleiades Publishing
Publisher Date	2017-04-09
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Atomic, Molecular, Optical and Plasma Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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