Exploiting the MEDIPIX2 detector for the reconstruction of X-ray spectra

The single photon counting pixel detector MEDIPIX2 has been used in a variety of applications. Because of its spectral capability, the detector can be used as spectrometer. However, the measured spectrum is not the real incident spectrum as the MEDIPIX2 suffers from charge sharing because of its small pixel size.This implies that the energy information is smeared out heavily. Taking the measured spectrum and the responses to monoenergetic exposure we applied some deconvolution methods to determine the incoming spectrum.