Method and apparatus for generating a plurality of time windows used in signal integration processing

A circuit for providing a plurality of time windows used in signal integration in a medical imaging system, the medical imaging system including a gamma-ray detector and a set of digital readout channels, the gamma-ray detector including a crystal array and a photosensor array, the photosensor array generating electrical signals in response to receiving incident scintillation light emitted from the crystal array in response to a gamma-ray interaction occurring in the crystal array, the set of digital readout channels acquiring the electrical signals and generating a set of digital signals indicating information relating to the gamma-ray interaction, each channel of the set of digital readout channels including a charge integrator and an analog-to-digital converter, the circuit comprising:

• a window generator configured to generate a plurality of time windows and a single analog-to-digital conversion (ADC) start signal, wherein
• based on the generated plurality of time windows and the acquired electrical signals, the charge integrators included in the set of digital readout channels perform charge integrations to generate a set of integrated signals, and
• based on the generated single ADC start signal, the analog-to-digital converters included in the set of digital readout channels perform analog-to-digital conversions on the generated set of integrated signals in a synchronized way to generate the set of digital signals.