Mechanically stable field emission gun

Details Mechanically stable field emission gun Mechanically stable field emission gun

1992-01-24

1994-04-19

O'Shea, Sandra L.

Electric lamp and discharge devices

With positive or negative ion acceleration

313289, 31511181, H01J 724, H01J 2502

Patent

active

053048881

ABSTRACT:
An improved electron or ion gun support structure includes a hollow cylinder for rigidly connecting the source assembly to the source-motion ring, with the source cathode and associated lens extending into the hollow portion of the cylinder. The gun is thus made very stable and less susceptible to outside vibrations.

REFERENCES:
patent: 4446403 (1984-05-01), Cuomo et al.
patent: 4748369 (1988-05-01), Phillips et al.

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