The Initiation of Electrical Breakdown in Vacuum | Zendy

Lawrence Cranberg | Zendy

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The Initiation of Electrical Breakdown in Vacuum

Author(s) -

Lawrence Cranberg

Publication year - 1952

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.1702243

Subject(s) - breakdown voltage , voltage , square root , electrical breakdown , materials science , range (aeronautics) , electric breakdown , electric field , physics , composite material , geometry , mathematics , quantum mechanics

The hypothesis is suggested that initiation of high voltage breakdown in vacuum is due to traversal of the high voltage gap by a clump of loosely adhering material. The implication of this hypothesis for uniform‐field gaps is that the breakdown voltage is proportional to the square root of the gap length. A summary the literature is presented which supports this conclusion for a range of voltages from 20 kilovolts to 7 megavolts, and for a range of gap distance from 0.2 mm to 6 meters. Additional qualitative evidence is presented which tends to support the proposed hypothesis.

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