NDLI: Temporal relaxation of plasma electrons acted upon by direct current electric and magnetic fields

Content Provider	IEEE Xplore Digital Library
Author	Loffhagen, D. Winkler, R.
Copyright Year	1973
Abstract	On the basis of the time-dependent electron Boltzmann equation the temporal relaxation of the electrons in the presence of electric and magnetic fields in weakly ionized, collision dominated plasmas has been studied. The relaxation process is treated by using a strict time-dependent two-term approximation of the velocity distribution function expansion in spherical harmonics. A new technique for solving the time-dependent electron kinetic equation in this two-term approximation for arbitrary angles between the electric and magnetic fields has been developed and the main aspects of the efficient solution method are presented. Using this new approach and starting from steady-state plasmas under the action of time-independent electric fields only, the impact of superimposed DC magnetic fields on the electron relaxation is analyzed with regard to the control of a neon plasma. The investigations reveal an important effect of the magnetic field on the temporal relaxation process. In particular, it has been found that the relaxation time of the electron component with respect to the establishment of steady-state can be enlarged by some orders of magnitude when increasing the magnetic field strength.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1262
Ending Page	1270
Page Count	9
File Size	303529
File Format	PDF
ISSN	00933813
Volume Number	27
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrons Magnetic fields Plasma sources Kinetic theory Plasma transport processes Boltzmann equation Plasma materials processing Distribution functions Steady-state Space technology
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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