PHOTON COUNTING X-RAY DETECTOR

摘要

The invention relates to a method and an X-ray detector (100) for detecting incident X-ray photons (X). The X-ray detector (100) comprises at least one sensor unit (105) in which X-ray photons (X) are converted into sensor signals (s) and at least one flux sensor (104) for generating a flux signal (f) related to the flux of photons (X). The sensor signals (s) are corrected based on the flux signal (f). In a preferred embodiment, the sensor signals (s) represent a spectrally resolved pulse counting. The flux sensor (104) may be integrated into an ASIC (103) that is coupled to the sensor unit (105).

主权项

1. An X-ray detector comprising:
at least one sensor unit for the conversion of incident X-ray photons (X) into electrical sensor signals (s), wherein the sensor unit comprises a conversion material for converting incident X-ray photons (X) into charge signals (q), and wherein at least one electrode is coupled to the conversion material for sensing the charge signals (q);
at least one flux sensor for generating a flux signal (f) that is related to the flux of incident X-ray photons (X);a data processing system for evaluating the sensor signals (s) based on the flux signal (f), wherein the data processing system comprises a processing circuit, that is located adjacent to the sensor unit and bonded to said electrode, for collecting and processing its sensor signals (s); wherein the flux sensor is integrated into or placed below the processing circuit.