Arc Cathode Movement in a Magnetic Field
作者:
A. E. Guile,
P. E. Secker,
期刊:
Journal of Applied Physics
(AIP Available online 1958)
卷期:
Volume 29,
issue 12
页码: 1662-1667
ISSN:0021-8979
年代: 1958
DOI:10.1063/1.1723020
出版商: AIP
数据来源: AIP
摘要:
An arc cathode spot in a transverse magnetic field may move either in the Amperian (forward) direction, or in the opposite (retrograde) direction. Experiments are described which show that forward continuous motion is caused by magnetic fields at the cathode surface, as is the case with retrograde motion, and that both of these motions depend upon the material and surface condition of the cathode. Forward cathode velocity both when continuous and when moving in a stepping process is independent of arc current over a wide range.The theories so far suggested for retrograde motion do not appear to be able to account for the dependence of retrograde cathode movement on the nature of the cathode surface.
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