METHOD FOR TEMPERATURE STABILIZATION OF PARAMETERS OF A SCINTILLATION DETECTOR BASED ON A SILICON PHOTOELECTRON MULTIPLIER TO RECORD GAMMA RADIATION, AND DEVICE FOR IMPLEMENTING THE SAME

摘要

The invention relates to nuclear physics, and in particular to methods and devices for adjusting and stabilizing the gain of scintillation detector of ionizing radiation; it can find application in building instrumentation and systems to monitor radiation that use the interaction of a crystalline scintillator with ionizing radiation as a primary transformation. The objective of the invention is to increase the stability and quality of correction of the detector output signal, to increase the stabilization accuracy of the spectrometer scale of the detector in a wide temperature range, to increase the mobility of the device and to expand its scope of application. The proposed method for temperature stabilization of the parameters of a scintillation detector based on a silicon photoelectron multiplier (PEM) (2) in registration of gamma radiation comprises taking independent sequences of data obtained from two precision temperature sensors (3, 4) that read the temperature of scintillation crystal (1) registering gamma radiation, and that of silicon PEM in a spatially separated way during the whole process of registering gamma radiation; these two arrays of independent sequences are analyzed to generate a common control signal that counteracts the deviation of controlled variable from its true value, affects the controlled object and adjusts its gain through a change in the supply voltage of the silicon PEM.