CdTe linear pixel X-ray detector with enhanced spectrometric performance for high flux X-ray imaging

A growing interest has recently been observed in energy sensitive pixel array for high flux X-ray imaging. These devices provide compositional analysis of the imaged objects and would be useful in a wide range of applications in the field of security, non destructive testing and medical imaging. CEA-LETI has developed a CdTe linear array pixel detector coupled with a novel 16-channels fast readout circuit. For each channel, the signal is continuously digitized by a 100 MHz 12 bit ADC and a FPGA controls acquisition and reconstructs the energy spectra on 256 bins. The readout circuit is coupled with a 3 mm thick CdTe 16 pixels linear array detector 0.8 mm pixel pitch.