Photomultiplier detector protection device and method

Details Photomultiplier detector protection device and method Photomultiplier detector protection device and method

1981-12-28

1984-03-13

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

H01J 3150

Patent

active

044369948

ABSTRACT:
A photomultiplier detector protection system and method utilizing a negative feedback loop to maintain the photomultiplier detector output below a predetermined output. The feedback loop comprises a comparator responsive to the photomultiplier detector output and also responsive to a predetermined limit signal. The comparator output is applied to a summing amplifier which also receives a voltage adjust signal. The output of the summing amplifier controls the output of a power supply which is in turn applied to the photomultiplier detector.

REFERENCES:
patent: 3694659 (1972-09-01), Ramsay et al.
patent: 3714441 (1973-01-01), Kreda
patent: 4195222 (1980-03-01), Fouilloy

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