Radiographic detector including trap occupancy change monitor and feedback, imaging apparatus and methods using the same

摘要

Embodiments of radiographic imaging systems; digital radiography detectors and methods for using the same can monitor and/or control trap occupancy levels in photosensors of radiographic sensors (e.g., DR FPDs). In exemplary radiographic imaging apparatus embodiments, monitoring of trap occupancy or change in trap occupancy of the photosensor can determine whether an imaging array or detector panel has reached a stable operating point. In another embodiment, trap occupancy information can be used (a) to enable a generator (e.g., x-ray source) for a radiographic exposure and/or (b) to adjust to or to maintain a change in trap occupancy level at pre-determined set-point or to adjust to or maintain a change in trap occupancy level within a prescribed range (e.g., using clock signals and bias voltages applied to the photosensor).