APPLICATION OF GAMMA-NEUTRON IONIZATION CHAMBERS FOR MONITORING THE DISTRIBUTION OF THE NEUTRON FLUX DENSITY, ENERGY RELEASE, AND ENERGY PRODUCTION IN RBMK-1000

摘要

A method developed for performing direct measurements of three-dimensional distributions of energy release and energy production in RBMKfuel assemblies is described. The method is based on performing measurements with a gamma-neutron chamber and comparing the neutron and gamma signals. The results of the measurements of the neutron flux density, energy release, and energy production are compared with the values obtained with the Prizma-M program of the Skala-micro information-measurement system. It is confirmed experimentally that the Prizma-M system can be used to monitor the distribution of not only the neutron flux density and energy release of fuel assemblies but also the energy production of off-loaded fuel assemblies.