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Arc cathode spots: Their mechanism and motion

✍ Scribed by Schrade, H.O.


Book ID
117862555
Publisher
IEEE
Year
1989
Tongue
English
Weight
292 KB
Volume
17
Category
Article
ISSN
0093-3813

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Cathode spot types and spot motion of arcs in ultra high vacuum have been investigated with large area cathodes that consisted of two adjacent pieces of Mo and Cu. Arc currents were 20-60 A dc and 8-20 kApulse (duration about 1 ms). Two spot types occured with different velocities and surface erosio