Electric lamp and discharge devices – With positive or negative ion acceleration – Means for deflecting or focusing
Patent
1975-09-10
1977-09-27
Krawczewicz, Stanley T.
Electric lamp and discharge devices
With positive or negative ion acceleration
Means for deflecting or focusing
313295, 313360, 313363, 250398, 250400, H01J 100, H05H 100
Patent
active
040514056
ABSTRACT:
A method and an apparatus for controlling the angle of incidence of low-egy, high current density electron beams are disclosed. The apparatus includes a current generating diode arrangement with a mesh anode for producing a drifting electron beam. An auxiliary grounded screen electrode is placed between the anode and a target for controlling the average angle of incidence of electrons in the drifting electron beam. According to the method of the present invention, movement of the auxiliary screen electrode relative to the target and the anode permits reliable and reproducible adjustment of the average angle of incidence of the electrons in low energy, high current density relativistic electron beams.
REFERENCES:
patent: 2214808 (1940-09-01), Burnside
patent: 2220840 (1940-11-01), Metcalf
patent: 2235498 (1941-03-01), Herold
patent: 2272844 (1942-02-01), Jonker
patent: 2544226 (1951-03-01), Herold
patent: 2772364 (1956-11-01), Washburn
patent: 2774008 (1956-12-01), Rooks
patent: RE22576 (1944-12-01), Freeman
Lee John N.
Oswald, Jr. Robert B.
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Krawczewicz Stanley T.
The United States of America as represented by the Secretary of
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