Photomultiplier tube circuit including means for sampling the voltage of at least one dynode
AssigneeThe Secretary of State or Defense
InventorJohn Gardner
Life of this patent
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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.
Claims16
A photomultiplier tube circuit 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 switching means for switching the oscillator on and off with respect to the at least one dynode voltage sampled.
Dependencies are inferred from the claim text.