Charged particle emission source structure

Details Charged particle emission source structure Charged particle emission source structure

1986-06-04

1988-01-26

DeMeo, Palmer C.

Electric lamp and discharge devices

With positive or negative ion acceleration

Supplying ionizable material

313336, H01J 130, H05H 100

Patent

active

047218789

ABSTRACT:
A charged particle emission source structure comprising a needle-like electrode for emission of charged particles, a reservoir for a liquid metal for wetting the surface of the needle-like electrode, heat-generating support members for heating the liquid metal and holding the reservoir or the needle-like electrode, and an extraction electrode for applying an electric field as between it and the needle-like electrode, which is characterized in that conductive partitions hardly wettable with the liquid metal are provided between the heat-generating support members and the reservoir or the needle-like electrode.

REFERENCES:
patent: 3814975 (1974-06-01), Wolfe et al.
patent: 4088919 (1978-05-01), Clampitt et al.
patent: 4467240 (1984-08-01), Futamoto et al.
patent: 4482839 (1984-11-01), Wada et al.
patent: 4488045 (1984-12-01), Anazawa et al.

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