METHOD OF CALIBRATING RELATIVE SENSITIVITIES OF DETECTORS FOR DETECTING CHARACTERISTICS OF HARD GAMMA- AND DECELERATION RADIATION Russian patent published in 2012 - IPC G01T1/167 

FIELD: physics.

SUBSTANCE: invention relates to nuclear and radiation physics and can be used to detect gamma- and deceleration radiation of powerful pulsed sources. Currents from detectors arising during operation of a radiation source are detected; end-to-end calculation of processes associated with the effect of radiation on detecting elements of detectors is carried out; the detection results are processed and coefficients of relative sensitivities of the detectors are determined in the disclosed method; calibration is carried out directly in the working edition of measurements; the calibration radiation source used is a pulsed radiation source with a continuous spectrum; inclination of detector CX is aligned using a combination of measurements in the system of detectors associated with passage of radiation to the detecting elements; alignment of detector CX is carried out in an energy range which includes the main spectrum of quanta of the pulsed source while preserving installation of the system of detectors in the given working geometry of measurements to provide integrity of the chain of conversion of processes in the detecting element to output current from the detector; determination of the required values in the detector CX is carried out based on conducting end-to-end calculations of propagation and absorption of radiation, including via a Monte-Carlo method, in the variable system, wherein the combined set of measurements in the system of detectors is found from calculation results; specific changes are made to the system of detectors; currents from detectors arising during operation of the pulsed radiation source are detected using detectors, power supplies and the working measuring system overall, based on which the detection results are processed and coefficients of relative sensitivities of detectors are determined.

EFFECT: simple calibration process, possibility of using an information summation scheme.

16 cl, 7 dwg