RADIATION DETECTOR WITH SHIELDED ELECTRONICS FOR COMPUTED TOMOGRAPHY

摘要

A radiation detector module includes a scintillator ( 62, 62', 162, 262 ) arranged to receive penetrating radiation of a computed tomography apparatus ( 10 ). The scintillator produces optical radiation responsive to the penetrating radiation. A detector array ( 66, 66', 166, 266 ) is arranged to convert the optical radiation into electric signals. Electronics ( 72, 72', 172, 272 ) are arranged on a side of the detector array opposite from the scintillator in a path of the penetrating radiation. A radiation shield ( 86, 86', 100, 100', 100'', 186, 210, 210', 286, 286 ') is disposed between the detector array and the electronics to absorb the penetrating radiation that passes through the scintillator. The radiation shield includes openings ( 90, 90 ') that communicate between the detector array and the electronics. Electrical feedthroughs ( 88, 88', 102, 102', 102'', 188, 212, 212', 288, 288 ') pass through the radiation shield openings and electrically connect the detector array and the electronics.