On the current density at the cathode of vacuum arcs
- 14 August 1984
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 17 (8) , L111-L114
- https://doi.org/10.1088/0022-3727/17/8/001
Abstract
By driving the arc spots over a slotted cathode a new method for determining the spot current density has been tested. From the measured values of spot velocity and current rise rate behind the slit, current densities of the order 1012 A m-2 are derived. This confirms estimates from crater studies.Keywords
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