Thyratron having thermionic cathode material between anode and c

Details Thyratron having thermionic cathode material between anode and c Thyratron having thermionic cathode material between anode and c

1985-12-18

1988-08-02

Boudreau, Leo H.

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

313310, 313325, H01J 1706, H01J 1754

Patent

active

047617942

ABSTRACT:
A thyratron comprises an anode and control grids between which is located a double layer screen grid. Thermionic cathode material is inserted in an aperture in the part of the screen grid furthest from the anode, and in operation this is heated to the required temperature by hot plasma which surrounds it, thus eliminating the need for a cathode heater.

REFERENCES:
patent: 2805353 (1957-09-01), Nienhuis
patent: 2942136 (1960-06-01), Cook et al.
patent: 3612937 (1971-10-01), Smirnov et al.

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