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U.S. Department of Energy
Office of Scientific and Technical Information

High power, high frequency, vacuum flange

Patent ·
OSTI ID:6038351
An improved waveguide flange is disclosed for high power operation that helps prevent arcs from being initiated at the junctions between waveguide sections. The flanges at the end of the waveguide sections have counter bores surrounding the waveguide tubes. When the sections are bolted together the counter bores form a groove that holds a fully annealed copper gasket. Each counterbore has a beveled step that is specially configured to insure the gasket forms a metal-to-metal vacuum seal without gaps or sharp edges. The resultant inner surface of the waveguide is smooth across the junctions between waveguide sections, and arcing is prevented.
DOE Contract Number:
W-7405-ENG-48
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5196814; A
Application Number:
PPN: US 7-786647
OSTI ID:
6038351
Country of Publication:
United States
Language:
English