Radiation detector for use in sequential image acquisition

An imaging system, comprising:

• an X-ray source configured to emit X-rays;
• a detector configured to generate signals in response to X-rays incident on the detector, the detector comprising a plurality of detector elements, each detector element comprising:
• a photodiode:
• a first capacitor that is charged when the photodiode is exposed to light;
• a second capacitor;
• a transfer gate configured to control a flow of charge between the first capacitor and the second capacitor;
• and
• a matrix switch transistor configured to control readout of the second capacitor.
• a data acquisition system configured to selectively read out detector elements of the detector, wherein reading out detector elements comprises at least determining a charge stored in the second capacitor.

A method for acquiring non-invasive image data, comprising:

• generating a first charge at a diode capacitor of a detector element of a radiation detector;
• transferring the first charge from the diode capacitor to a storage capacitor;
• generating a second charge at the diode capacitor;
• reading out the first charge from the storage capacitor;
• transferring the second charge from the diode capacitor to the storage capacitor;
• and
• reading out the second charge from the storage capacitor.