High efficiency electron beam gun foil support

Details High efficiency electron beam gun foil support High efficiency electron beam gun foil support

1984-10-17

1986-11-25

Scott, Jr., Leon

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 61, 372 34, 372701, H01S 309

Patent

active

046253165

ABSTRACT:
The reduction of the grazing angle of electrons in an electron gun with a cathode emitting a beam of electrons which pass through a thin foil into a chamber is accomplished by geometrically tailored electron gun foil supports. One embodiment of the invention replaces the conventional rectangular shaped ribs with a set of triangular shaped ribs which produce a grazing angle A given by the equation ##EQU1## where T=the base width of the rib

REFERENCES:
patent: 3808551 (1974-04-01), Ahouse
patent: 4143336 (1979-03-01), Searles et al.
patent: 4230994 (1980-10-01), Bradley

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