Patent ID: 8735837
Filing Date: 2014-05-27
Classification: G01T

Abstract:
1. A gamma radiation detecting apparatus comprising: a gamma radiation collimator which receives and collimates gamma radiation; a scintillation crystal which receives the gamma radiation from the gamma radiation collimator and converts the gamma radiation into visible light; a light-collecting mirror which collects and focuses the visible light received from the scintillation crystal; a beam splitter which splits and directs the visible light from the light-collecting mirror into at least two beams; an optical lens which focuses a first beam of the visible light from the beam splitter; a charge coupled device which receives the visible light from the optical lens and converts the visible light into an electrical charge; shielding which prevents the charge coupled device and the scintillation crystal from being exposed to unwanted gamma radiation; and at least one light detector which receives a second beam of the visible light from the beam splitter and measures total energy of the second beam; wherein the charge coupled device is positioned so that it is not directly exposed to gamma radiation; and wherein the light-collecting mirror splits the visible light from the gamma radiation flux received through the scintillation crystal, preventing exposure of the charge coupled device to gamma radiation.