Patent ID: 6207957
Filing Date: 2001-03-27
Classification: G01T

Abstract:
Apparatus for measuring gamma-ray energy deposition for use in conjunction with a semiconductor detector, said detector comprising two electrodes and a detecting material, said detector producing a charge signal E(t) when an incident gamma-ray interacts with said detector, comprising:digitizing means for converting said charge signal E(t) into a digitized charge signal;a computational means for receiving said digitized charge signal, and for calculating in which of a plurality of zones said gamma-ray deposited energy in said detector;said computational means further comprising a fitting means for using said digitized charge signal to determine a radial distribution of an amount of energy deposited by said gamma-ray in said plurality of zones; andsaid computational means further comprising a time analysis means for receiving said digitized charge signal from said digitizing means, for calculating a start time t.sub.0 at which said gamma-ray first interacted with said detector, and for outputting said start time t.sub.0 to said fitting means.