Patent ID: 7297957

Claim:
A method for calibrating a radiation detector including a radiation sensor, said method comprising the steps of: setting a gain for the sensor to a non-zero value; irradiating the detector with a radiation source; collecting a radiation spectrum detected by the detector; calculating a peak energy location from the radiation spectrum; determining if the peak energy location is mislocated from a desired location beyond an acceptable deviation amount; and if the peak energy location is mislocated from a desired location beyond the acceptable deviation amount, adjusting the gain setting, wherein said method is performed for each of said plurality of sensors by setting the gain for all but a selected one of the sensors to zero, and setting the selected one of the sensor to the non-zero value, for performing said method, and then repeating said method for each of the plurality of sensors in a like manner, thereby resulting in an acceptable gain setting for each of the plurality of sensors.