Patent ID: 7485850
Filing Date: 2009-02-03
Classification: G01T

Abstract:
1. A method, comprising: estimating a total number of traps to be filled in a detector of an imaging system based on a measured signal sensed by the detector using an empirical model; and adjusting the measured signal based on the estimated total number of traps and a current trap state of the detector, wherein the empirical model is determined by: providing an object adjacent to the detector of the imaging system; projecting radiation onto the object and the detector; collecting data from the detector over a period of time; and estimating one or more constant parameters associated with the detector based on the collected data, the one or more constant parameters further comprising: one or more resistance value, one or more capacitance value from an RC network, the one or more resistance value representing a trap filling or trap emptying, the one or more capacitance value representing a maximum number of traps at an energy level of the radiation.