Dynamic electron emitter

Details Dynamic electron emitter Dynamic electron emitter

1986-11-13

1988-04-19

Moore, David K.

Electric lamp and discharge devices

With positive or negative ion acceleration

Supplying ionizable material

250423R, 31511181, H05H 134, H01J 2702

Patent

active

047392142

ABSTRACT:
A dynamic electron emitter includes a cold cathode in a cathode chamber emitting electrons in a focussed beam at and through a small orifice into a receiving chamber containing an anode and which may be the chamber of an ion gun. The orifice size is critical in that it must be small enough to ensure a higher pressure in the cathode than in the receiving chamber yet large enough to pass therethrough a sufficiently large flux of electrons to accomplish the intended purpose of the electron stream.

REFERENCES:
patent: 4339691 (1982-07-01), Morimiya et al.
patent: 4602161 (1986-07-01), Whealton et al.
patent: 4707637 (1987-11-01), Harvey

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