Multiple section photomultiplier tube

Details Multiple section photomultiplier tube Multiple section photomultiplier tube

1990-11-19

1991-12-31

Yusko, Donald J.

Electric lamp and discharge devices

Photosensitive

Secondary emitter type

313532, 313533, H01J 4318

Patent

active

050775049

ABSTRACT:
A multiple section photomultiplier tube constructed as a matrix of several independent tubes in one envelope. The photocathode to dynode spacings are isolated by a separator configuration built with walls which interlock in cooperating slots, and each photocathode operates with its own independent dynode cage. One dynode in each cage is maintained electrically independent, and its connection is brought out of the envelope independently. This permits independent adjustment of the gain for each of the tube's multiple sections, so they can be adjusted to the same response for a standard radiation signal. The entire tube can then be used to monitor a large area for radiation, and will yield the same response over its entire cathode area.

REFERENCES:
patent: 3633270 (1972-01-01), Deradoorian
patent: 3668388 (1972-06-01), Fisher et al.
patent: 4117366 (1978-09-01), Davis
patent: 4881008 (1989-11-01), Kyushima et al.
patent: 4937506 (1990-06-01), Kimura et al.

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