TITLE

High-current formed ferrite plasma cathode

AUTHOR(S)
Watanabe, K.; van Goor, F. A.; Witteman, W. J.
PUB. DATE
June 1989
SOURCE
Applied Physics Letters;6/26/1989, Vol. 54 Issue 26, p2639
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A new type of plasma cathode for x-ray and electron beam generation has been demonstrated using a formed ferrite plasma source where a durable filament on the ferrite rod creates a large area of plasma surface as the electron source. Measured anode voltage-current relationships show the space-charge-limited operation with a high current density of 17 A/cm2 at 70 kV anode voltage during 2.5 μs. This source is promising for high repetition rate operation with a long life.
ACCESSION #
9831790

 

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