Evaporator support assembly for a photomultiplier tube

Details Evaporator support assembly for a photomultiplier tube Evaporator support assembly for a photomultiplier tube

1980-08-29

1983-01-25

Demeo, Palmer C.

Electric lamp and discharge devices

Secondary emission prevention

Nonemissive material

313181, H01J 4006

Patent

active

043705855

ABSTRACT:
A photomultiplier tube comprises an evacuated envelope having a photoemissive cathode formed on an interior surface of the envelope. An evaporator support assembly is attached to a dynode assembly in such a manner as to align and precisely locate the dynode assembly with respect to the interior wall surface of the tube. The evaporator support assembly provides a structure for attaching an alkali source within the tube in a manner which guarantees mechanical and electrical reproducibility. The evaporator support structure also includes a structure for making contact to the photocathode of the tube.

REFERENCES:
patent: 2404803 (1946-07-01), Stafford
patent: 2676282 (1954-04-01), Polkosky
patent: 3502928 (1970-03-01), Guyot et al.
patent: 3658400 (1972-04-01), Helvy
patent: 3753023 (1973-08-01), Sommer
patent: 3884539 (1975-05-01), Sommer

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