Patent ID: 9535169
Date: 2017-01-03
CPC Classifications: G01T

Claim:
1. A radiation detector array for a TOF-PET (Time of Flight—Positron Emission Tomography) device that is configured to be able to collect DOI (Depth of Interaction) information, the radiation detector array comprising: a radiation detector set that performs coincidence counting, the radiation detector set including a pair of radiation detectors disposed on a circumference of a circle substantially centered on a measuring object, the radiation detectors of the pair being located on opposite sides of the circle across the measuring object, wherein each of the radiation detectors comprises: the scintillator array is provided between the first photodetector array and the second photodetector array; the first photodetector array has a plurality of first photodetectors which are arrayed two-dimensionally along the incident surface; the second photodetector array has a plurality of second photodetectors which are arrayed two-dimensionally along the back surface; the first and second photodetectors are radiation-transmissive photodetectors, and at least the first photodetectors are each configured to receive and transmit gamma rays; and each of the scintillator cells includes a plurality of light emitting regions which absorb an incident radiation and generate scintillation light, and a first reflecting region which is configured to reflect the scintillation light generated by a first one of the light emitting regions.