Radiation detector and X-ray imaging system
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United States of America Patent
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Oct 23, 2018
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N/A
app pub date -
Sep 5, 2017
filing date -
Sep 5, 2017
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Abstract
A radiation detector (100) with a scintillator (102), a photosensor (104) and an electronics module (108) is proposed. The electronics module (108) has a current-to-frequency converter (110) with a charge integrator (112) for generating a pulsed signal in having a frequency correlating with a charge generated by the photosensor (104) during a measurement cycle. The electronics module (108) further comprises a current source (120) for generating a frequency offset of the pulsed signal, an interrupting device (134) for interrupting an integration of the charge by the charge integrator (112), and a logic module (124) for determining the frequency of the pulsed signal. Therein, the logic module (124) is configured for determining an off-state of a radiation (404) source and for triggering the interrupting device (134) upon determining the off-state of the radiation source (404).
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