Patent ID: 8299437
Filing Date: 2012-10-30
Classification: A61B,G01T

Abstract:
1. A gamma ray detector comprising: (a) a plurality of absorber scintillators made from an absorptive substance exhibiting substantial absorption with respect to gamma rays in an energy region, emitted from a subject; (b) a plurality of Compton scattering scintillators made from a Compton scattering substance exhibiting a substantial probability of Compton scattering with respect to the gamma rays; and (c) an energy detector that combines the amounts of gamma ray energy absorption simultaneously measured by a first absorber scintillator and a first Compton scattering scintillator to reconstruct gamma rays emitted from the subject, wherein the absorber scintillators and the Compton scattering scintillators are arranged in multiple layers and alternately or randomly in an identical surface and in a direction of lamination so as to absorb, or Compton-scatter, the whole energy of the gamma rays.