Liquid metal ion source

Details Liquid metal ion source Liquid metal ion source

1985-04-26

1988-06-21

Church, Craig E.

Radiant energy

Ion generation

Field ionization type

250425, 313232, 3133621, 31511181, H01J 2702

Patent

active

047526920

ABSTRACT:
U-shaped billet (52) has a slot (54) cut therein for receipt of a slip of insulator material (56). This body is machined on its front end (64) to produce a narrow bridge (66) of controlled cross-sectional area. Emitter needle (78) is positioned in a bore through the bridge to be heated by current through the bridge. The ion emitter body is rigid and strong to hold the emitter needle in the proper location.

REFERENCES:
patent: 4318029 (1982-03-01), Jergensen
patent: 4318030 (1982-03-01), Jergensen
Prewett et al.; "Liquid Metal Source of Gold Ions," Dev. Sci. Insts. 52(4), Apr. 1981.

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