Patent ID: 8491190

Claim:
A method of calibrating an X-ray detection system, said X-ray detection system comprising at least one X-ray generator and a detection array comprising a matrix of detecting semiconductor pixels and processing and calibration electronics, wherein the calibration method comprises: operating the at least one X-ray generator at a nominal high voltage, the at least one X-ray generator being placed opposite the detection array; counting, using the processing and calibration electronics, pulses emitted by each pixel in the matrix of detecting semiconductor pixels through a radiation produced by the at least one X-ray generator; establishing, for each pixel, an amplitude distribution of the counted pulses and classing each pixel according to the pixel's amplitude; applying, to each amplitude distribution, a statistical indicator, said statistical indicator being chosen between at least a percentile and a mean of said amplitude distribution; identifying a particular amplitude corresponding to the applied statistical indicator to the amplitude distribution; and adjusting, using the processing and calibration electronics, calibration parameters for each pixel, taking account of an energy-amplitude relationship thus established.