TITLE

Ion source metal-arc fault current protection circuit

AUTHOR(S)
deVries, G. J.; Lietzke, A. F.; van Os, C. F. A.; Stearns, J. W.
PUB. DATE
December 1991
SOURCE
Review of Scientific Instruments;Dec1991, Vol. 62 Issue 12, p3098
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ion sources can be damaged by arcs between metallic components of the source if these arcs are permitted to last. The negative-biased low-work-function converter in a surface conversion negative ion source is especially susceptible to metal-arc breakdown damage. Here an electronic circuit for minimizing the damage caused by such an arc is described. The circuit uses a transistor switch and an inductor in series with the converter bias power supply to limit the damage during the metal-arc breakdown.
ACCESSION #
9782152

 

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