Experimental and theoretical study of the temperature of a hot anode vacuum arc

H. Rosenthal, I. Beilis, S. Goldsmith, R. L. Boxman

Research output: Contribution to journalConference articlepeer-review


Heat transfer to a thermally isolated graphite anode in a long duration vacuum arc was investigated. Anode bulk temperatures were measured as a function of time using two high temperature thermocouples. The anode surface temperature was optically determined. Surface temperatures of 2300 K were obtained in a 340 A arc. A one dimensional non-linear heat flow model for the anode was developed. A solution was obtained using a dynamic numerical method and the effective anode potential was determined to be approximately 6 V.

Original languageEnglish
Pages (from-to)164-169
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 May 1994
Event16th International Symposium on Discharges and Electrical Insulation in Vacuum 1994 - Moscow-St. Petersburg, Russian Federation
Duration: 23 May 199430 May 1994


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