Photomultiplier tube circuit including means for sampling...

Details Photomultiplier tube circuit including means for sampling... Photomultiplier tube circuit including means for sampling...

1999-09-17

2008-12-02

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140VT

Reexamination Certificate

active

07459662

ABSTRACT:
A photomultiplier tube circuit with reduced power consumption comprising a photomultiplier tube having a plurality of dynodes, charging circuitry for providing charge to the plurality of dynodes and an oscillator for providing a high voltage supply to the charging circuitry characterised in that the photomultiplier tube circuit further comprises means for sampling the voltage of at least one of the dynodes and a switching means for switching the oscillator on and off with respect to the at least one dynode voltage sampled.

REFERENCES:
patent: 3694659 (1972-09-01), Ramsay et al.
patent: 3997779 (1976-12-01), Rabl
patent: 4436994 (1984-03-01), Van Vliet et al.
patent: 7030355 (2006-04-01), Bochenski et al.
patent: 2 213 585 (1974-08-01), None
patent: 2 672 996 (1992-08-01), None
patent: 2 190 785 (1987-11-01), None

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