RADIATION DETECTOR UNIT WITH TESTING CIRCUIT Russian patent published in 2015 - IPC G01T1/24 

FIELD: physics.

SUBSTANCE: invention relates to radiological imaging, computed tomography (CT), emission tomography, radiation detectors and prior art thereof. A radiation detector unit (20) comprises a detector array module (40) configured to convert radiation particles into electrical detection pulses, and an application-specific integrated circuit (ASIC) (42), operably connected to the detector array. The ASIC comprises a signal processing circuit (60) configured to digitise an electrical detection pulse received from the detector array, and a test circuit (80) configured to input an electrical test pulse into the signal processing circuit. The test circuit comprises a current meter (84) configured to measure an electrical pulse input into the signal processing circuit, and a charge pulse generator (82) configured to generate an electrical test pulse which is input into the signal processing circuit. The radiation detector unit (20) is assembled by operably connecting the ASIC (42) and the detector array module (40), and the signal processing circuit (60) of the ASIC of the assembled radiation detector unit is tested without using radiation.

EFFECT: high quality of testing a detector.

15 cl, 3 dwg