Noise discrimination in photon counting system

A method for counting detection events via a photon counting detector array, comprising:

• generating a voltage signal based upon electrical charge yielded from a detector cell of the photon counting detector array;
• converting the voltage signal from an analog domain to a digital domain to generate a digital output;
• and
• discriminating the digital output to identify whether a pulse in the digital output corresponds to a detection event on the detector cell or corresponds to noise in the voltage signal based upon an impulse response of the detector cell.

A non-transitory computer readable medium comprising processor executable instructions that when executed perform a method for counting detection events via a photon counting detector array, the method comprising:

• generating a voltage signal based upon electrical charge yielded from a detector cell of the photon counting detector array;
• filtering, via an analog filter, the voltage signal to limit a noise bandwidth of the voltage signal;
• converting, after the filtering, the voltage signal from an analog domain to a digital domain to generate a digital output;
• and
• discriminating, via a digital discriminator, the digital output to identify whether a pulse in the digital output corresponds to a detection event on the detector cell or corresponds to noise in the voltage signal.