Fast magnetic field penetration into a cylindrical plasma of a nonuniform density
作者:
K. Gomberoff,
A. Fruchtman,
期刊:
Physics of Fluids B: Plasma Physics
(AIP Available online 1993)
卷期:
Volume 5,
issue 8
页码: 2841-2852
ISSN:0899-8221
年代: 1993
DOI:10.1063/1.860671
出版商: AIP
数据来源: AIP
摘要:
The penetration of a magnetic field into a cylindrical plasma of a density that varies both radially and axially is studied. The magnetic field penetrates rapidly due to the Hall field, along constantnr2lines (nis the dimensionless plasma density andris the dimensionless radial coordinate). For a plasma that conducts between two cylindrical electrodes, it is shown that there is magnetic field penetration for both positive and negative polarity cases as long as there is penetration along the electrodes. The magnetic field evolution is found, analytically and numerically, for different time behaviors of the magnetic field at the boundaries. Ion velocities are also calculated.
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