SPECTROMETER-IDENTIFIER BASED ON A SOLID DETECTOR FOR NFC FACILITIES

Abstract

Introduction. The Chornobyl accident resulted in radiation contamination of a large area. In order to prevent the
release of radioactive elements into the environment and food, it is necessary to use specialized devices that allow monitoring of the radiation situation.
Problem Statement. One of the most effective ways to quickly detect and identify sources of ionizing radiation
in the environment is to control the spread of radionuclides that are present in food and construction materials.
Purpose. The purpose is to develop modern domestic equipment for automated operational detection, identification, and monitoring of ionizing radiation sources in the environment in real time.
Materials and Methods. Methods of mathematical and computer modeling, full-scale modeling, machine design have been used. To study the specifications of the system and its features, field tests of its individual channels in the exclusion zone of the Chornobyl NPP have been carried out.
Results. An experimental system for automated operational detection, identification, and monitoring of ionizing radiation sources in the environment in real time, as well as for identification of detected radioactive isotopes and reliable estimate of their activity has been created and tested.
Conclusions. The created spectrometer-identifier is a new generation rapid response system based on advanced technologies, synthesis of principles of radiometry, spectrometry, and mathematical simulation. It is used for effective control of specific activity of liquid, viscous, bulk food and non-food samples and for identification of their
radionuclide composition. The introduction of the spectrometer-identifier significantly reduces the time for operational mass study of
food and non-food samples and identification of their radionuclide composition, which raises the environmental safety in the era of widespread operation of nuclear fuel cycle facilities.