NOISE DISCRIMINATION IN PHOTON COUNTING SYSTEM

摘要

Among other things, one or more techniques and/or systems are described for counting detection events on a detector cell of a photon counting detector array. An electronics arrangement of the detector cell comprises a digital discriminator which is configured according to an impulse response of the detector cell or, more particularly, an impulse response of a radiation detection element of the detector cell (e.g., where the radiation detection element is configured to convert energy of the radiation photon into electrical charge). The digital discriminator is configured to analyze a digital representation of a voltage signal of the detector cell and to compare a result of the analysis to one or more metrics derived based upon the impulse response of the detector cell to identify voltage pulses of the voltage signal that are indicative of detection events.

主权项

1. An electronics arrangement of a photon counting detector array, comprising:
an integration circuit configured to integrate charge generated by a detector cell of the photon counting detector array to generate a voltage signal; a comparator configured to compare the voltage signal to a reference voltage to generate a digital output; and a digital discriminator configured to analyze the digital output to identify a detection event on the detector cell.