Patent ID: 9335425
Filing Date: 2016-05-10
CPC Classification: A61B,G01T

Claim Text:
1. A detector device comprising: a) an assembly with a first layer of scintillation crystals for converting gamma radiation photon energy to light and a second layer of scintillation crystals for converting gamma radiation photon energy to light; b) a first light guide sandwiched between said second layer and said first layer and used for coupling said first and second layers so that the light coming from the second layer is distributed broader than the light originating from the first layer; c) a photo detector array for measuring the light generated in the scintillation crystals, said assembly being mounted with a second light guide onto said photo detector array, said second light guide being sandwiched between said photo detector array and said first layer and used for coupling said first layer and said photo detector array; and d) optical compartments forming a sub-structure of said scintillation crystals and covering side surfaces of said scintillation crystals by a reflective layer.