| 摘要 |
<p>The invention resides in an apparatus comprising an LED light source (134) for emitting a green illumination light (132) for illuminating an optically stimulated luminescence (OSL) sensor, a photodetector (162) for detecting of green luminescent light emitted by the OSL sensor, a pulse counter for counting photon pulses generated by a photodetector based on photons of luminescent light emitted by the OSL sensor and counted by the photodetector, and a microprocessor (166) for controlling the LED light source and the photodetector and the pulse counter. The microprocessor controls when the LED light source, the photodetector and the pulse counter are switched between an on state and an off state. The pulse counter is part of the microprocessor, and the microprocessor determines a radiation dose of one type of ionizing radiation to which the OSL sensor has been exposed based on the photon pulses counted by the pulse counter.</p> |
