X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1982-08-30
1985-01-08
Anderson, Bruce C.
X-ray or gamma ray systems or devices
Source
Electron tube
378134, 250398, H01J 300
Patent
active
044930976
ABSTRACT:
This invention relates to an electron gun assembly for use, for example, in x-ray lithography, which includes an electron emitter assembly, beam forming elements disposed adjacent the electron emitter assembly, a target plane disposed in spaced relationship with respect to the electron emitter assembly, a deflector disposed adjacent the path of the electrons emitted from the electron emitter assembly, a pseudoanode mounted in spaced relationship with respect to the deflector and to the electron emitter assembly and to the target plane, said electron emitter assembly being interposed between the pseudoanode and the target plane.
REFERENCES:
patent: 2482275 (1949-09-01), Horsley
patent: 2569872 (1951-10-01), Skeham et al.
patent: 4017757 (1977-04-01), DeCon
patent: 4215192 (1980-07-01), Buckley
Anderson Bruce C.
Grimes Edwin T.
Masselle Francis L.
Murphy Thomas P.
The Perkin-Elmer Corporation
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