Driving circuit for pulsating radiation detector
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United States of America Patent
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Oct 7, 1986
Issued Date -
N/A
app pub date -
Apr 22, 1985
filing date -
Aug 22, 1983
priority date (Note) -
Expired
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Abstract
There is provided an improvement in a pulsating radiation detector system comprising means in a series circuit for emitting radiation in pulses of a selected, adjusted frequency, means responsive to pulses of radiation at the frequency for creating a control signal related to the received radiation and a driving circuit for pulsating the radiation emitting means in the series circuit. The improvement comprises a modification of the driving circuit to produce voltage pulses in the series circuit at a time base width less than the reciprocal of the frequency (in seconds), with means for sensing current flow in the series circuit, means for limiting current flow in the series circuit and means for adjusting the pulse width continuously as an inverse function of the sensed circuit whereby short distinct pulses can be created for better discrimination and accuracy in the detector system.
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