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Information × Registration Number 0221U101276, 0117U002305 , R & D reports Title Development and improvement of the neutron diagnostic methods to determine the safety parameters of nuclear installations popup.stage_title Head Borysenko Volodymyr I, Доктор технічних наук Registration Date 18-01-2021 Organization Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine popup.description2  The aim of the work is to develop criteria for the application of known methods for diagnosing subcritical systems depending on system characteristics, as well as to develop noise methods for diagnosing high-flow subcritical systems (ADS) and methods for determining reactivity coefficients for existing nuclear reactors. With the help of the modernized hardware and software complex, new experimental data were obtained and hidden information about the current state of fissile materials and the current value of the controlled parameters of the nuclear installation was found in noise-like signals from neutron flux density detectors and signals from regular nuclear control systems. By comparing the calculated value of the effective neutron multiplication factor with the critical state of the reactor at the start of seven different fuel loads with the number of fuel assemblies in the core from 72 to 129, validation of the constructed set of mathematical models was carried out. research channels in the core of the reactor type VVR-M for conducting physical experiments on the irradiation of test samples, detectors, structural materials, etc. The results are implemented and used in the optimization of experimental research on a research reactor type VVR-M, in particular, to justify the location of the assembly of direct charge detectors in the core of a nuclear reactor, to substantiate nuclear safety in spent fuel management systems at nuclear power plants. in order to control the parameters of the accumulation of flammable nuclear hazardous materials, as well as during the measurements of the parameters of the neutron flux from the VTVZ to SNF-1. Product Description popup.authors Vlasenko Tetiana S. Goranchuk Vadym V. Kuchmagra Oleksandr A. Sydoruk Mykola M. popup.nrat_date 2021-01-18 Close