Patent ID: 8921795

Claim:
A method for determining a radiation dose comprising the following steps: (a) illuminating an optically stimulated luminescence (OSL) sensor with illumination light from an LED for a first period of time based on a first number of clock cycles of a microprocessor, (b) counting photon pulses generated by a photodetector using the pulse counter for a second period of time after a delay time, (c) repeating steps (a) and (b) for a first predetermined number of measurement cycles, (d) the microprocessor determining a radiation dose for one type of ionizing radiation to which the OSL sensor has been exposed based on a number of photon pulses counted in step (b) after steps (a) and (b) have been repeated for the first predetermined number of measurement cycles, and (e) displaying the radiation dose to a user and/or saving the radiation dose to a storage medium, wherein photons of luminescent light emitted by the OSL sensor are registered by the photodetector, wherein the photon pulses generated by the photodetector are based on the photons of luminescent light registered by the photodetector, wherein the second period of time is based on a second number of microprocessor clock cycles after a delay time based on a third number of microprocessor clock cycles, wherein the delay time is based on a third number of microprocessor clock cycles, wherein OSL sensor has been subjected to a dose of the one type of ionizing radiation prior to step (a), wherein the luminescent light is emitted by the OSL sensor in response to step (a), and wherein the pulse counter is part of the microprocessor.