Measurements of the molybdenum anode temperature in a hot refractory anode vatcuum arc

I. I. Beilis, A. Shashurin, A. Nemirovsky, S. Goldsmith, R. L. Boxman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The temperature distribution in symmetric and asymmetric molybdenum anodes of a Hot Refractory Anode Vacuum Arc was determined using high temperature thermocouple probes placed in three locations in the anode body. Three different anode geometries were used, with arc currents in the range 125-225 A, and electrode separations of 5-18 mm. The anode temperature increased with arc current and decreased with the electrode separation. The steady state anode surface temperature exceeded 2200-2300K for currents larger than 150A. Photographic study of the interelectrode region indicated that during the transition period to the Hot Anode mode the plasma plume was asymmetrically distributed on the asymmetric anode surface, resulting in an asymmetric anode surface temperature distribution.

Original languageEnglish
Title of host publicationProceedings - XXIth International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Pages193-196
Number of pages4
DOIs
StatePublished - 2004
EventProceedings - XXIth International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV - Yalta, Ukraine
Duration: 27 Sep 20041 Oct 2004

Publication series

NameProceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Volume1
ISSN (Print)1093-2941

Conference

ConferenceProceedings - XXIth International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Country/TerritoryUkraine
CityYalta
Period27/09/041/10/04

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