Adaptive reflectivity for performance improvement on radiation detectors

A radiation detector, comprising:

• a scintillator to generate light from a scintillation event;
• a photosensor configured to detect light generated from a scintillation event;
• and
• a reflector configured to reflect light resulting from a scintillation event, so as to increase a probability of light being detected by the photosensor when the light is generated from a scintillation event, wherein
• the reflector has an adjustable reflectivity.

A radiation detection method, comprising:

• estimating, by a rate counter, a count rate of events detected by a radiation detector based on an output signal of the radiation detector;
• generating, based on the estimated count rate, a reflectivity control signal to adjust a reflectivity of a reflector of the radiation detector, the reflector configured to reflect light resulting from a scintillation event, so as to increase a probability of light being detected by a photosensor of the radiation detector when the light is generated from a scintillation event by a scintillator of the radiation detector;
• and
• outputting the reflectivity control signal to the reflector of the radiation detector to optimize an energy resolution of the radiation detector.