Some problems on rf breakdown in room temperature accelerator structure, a possible criterion | Zendy

J.W. Wang | Zendy

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Some problems on rf breakdown in room temperature accelerator structure, a possible criterion

Author(s) -

J.W. Wang

Publication year - 1986

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/5511056

Subject(s) - quantum tunnelling , field electron emission , electron , field (mathematics) , particle accelerator , instability , thermal , ultra high vacuum , atomic physics , materials science , breakdown voltage , voltage , physics , mechanics , optoelectronics , electrical engineering , optics , nuclear physics , thermodynamics , nanotechnology , engineering , beam (structure) , mathematics , pure mathematics

The discussion is confined to high gradient, room-temperature accelerators which have clean well-finished cavity surfaces and good vacuum conditions. Breakdown-initiating mechanisms due to ''cold'' field electron emission occurring at isolated sites on broad-area cavity surfaces, where the field is enhanced, are described. The influences of an alternating field and transition time tunneling are taken into account. The thermal instability resulting in vacuum voltage breakdown is hypothesized to derive a new criterion for room-temperature accelerator structure. 18 refs., 5 figs. (DWL)

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