METHOD OF TEMPERATURE STABILIZATION OF PARAMETERS OF SCINTILLATION DETECTOR ON THE BASIS OF SILICON PHOTO-ELECTRON MULTIPLICATOR FOR REGISTRATION OF GAMMA RADIATION AND DEVICE FOR ITS IMPLEMENTATION

摘要

The invention relates to nuclear physics, in particular to methods and devices for the correction and stabilization of the transmission coefficient of the scintillation detector of ionizing radiation, and can be used to build instrumentation and systems for radiation monitoring using the interaction of crystalline scintillator with ionizing radiation as the primary conversion. The technical task of the claimed invention is to improve the stability and quality of the correction of the output signal of the detector, improving the accuracy of stabilization of the spectrometric scale of the detector in a wide temperature range, increasing the mobility of the device and expanding its scope. In the proposed method of temperature stabilization of the parameters of a scintillation detector based on a silicon photomultiplier (PMT) (2), during the gamma-radiation detection during the whole gamma-radiation registration process, independent data sequences are obtained from two precision temperature sensors (3, 4) that separately characterize the temperature of the scintillation crystal (1) and silicon PMT, based on the analysis of two arrays of independent sequences, produces a common control signal, opposing the deviation of the regulated value from the true value, they influence the control object and change its transmission coefficient through a change in the supply voltage of the silicon photomultiplier.