Patent ID: 6895071
Filing Date: 2005-05-17
Classification: G01T

Abstract:
1. Radiation sensing apparatus, comprising: a detector assembly, comprising an array of detector elements, positioned to receive X-ray photons emitted over a range of angles and to generate a signal indicative of respective charges accumulated by the detector elements due to the photons that are incident on the elements; and a processor, which is coupled to receive the signal from the detector assembly and to determine, responsive to the signal, whether a high flux of the photons or a low flux of the photons was incident on each of the elements, and to estimate the number of photons incident on each of the elements by dividing the charges accumulated by the elements on which the high flux was incident by a high-flux average charge, and dividing the charges accumulated by the elements on which the low flux was incident by a low-flux average charge, substantially different from the high-flux average charge.