Accession Number : AD0739208

Title :   Studies of the Phenomena of Material Transfer from Electrodes during High-Vacuum Pulse Breakdown,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Eshkenazi,V. I.

Report Date : 30 DEC 1971

Pagination or Media Count : 11

Abstract : A study was made of the breakdown of a 0.35 mm vacuum gap between a Cu cathode (surface with a Rogovskiy profile 44 mm in diameter) and a Mo anode (hemisphere 22 mm in diameter). The gap was set with an accuracy of 0.0005 cm. The electrical breakdown occurred at a given time. Using a shearing spark gap, it was possible to obtain marks from the breakdowns in an incomplete state of discharge after 12, 18, and 30 nsec. Growth on the anode of projections consisting of anode material and growth of micropeaks on the cathode at the expense of anode material was found. It is noted that as the discharge develops, the size of projections on the anode increases, as does the quantity of Mo being transferred to the cathode at the expense of evaporation of these projections. (Author)

Descriptors :   (*ELECTRIC DISCHARGES, ELECTRODES), ELECTRON IRRADIATION, ANODES, CATHODES, USSR

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE