Vacuum arc sources of ions

Details Vacuum arc sources of ions Vacuum arc sources of ions

1988-07-21

1991-04-16

O'Shea, Sandra L.

Electric lamp and discharge devices

Fluent material supply or flow directing means

Plasma

31511181, H01J 2700, H01J 2726

Patent

active

050085859

ABSTRACT:
A vacuum arc source of ions of metals utilizing the principle of forming anode spots, whose anode surface (8) is fed with liquid metal (7) originating from a reservoir (6) through a connection member (9). The connection member is preferably constituted by a material chosen so that it has with respect to the liquid metal a great difference in the temperatures required to obtain the same vapor tension. The mode of feeding through the connection member is in embodiments of the invention obtained by means of a porous material (13) or contiguous slots (14). The liquid metals can be liquid at the ambient temperature (gallium, caesium) or be liquified by heating (tin, indium).

REFERENCES:
patent: 4638210 (1987-01-01), Jergenson
patent: 4687938 (1987-08-01), Tamura et al.
patent: 4774413 (1988-09-01), Okubo et al.

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