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Information × Registration Number 0220U101625, 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 17-02-2020 Organization Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine popup.description2  Object of the study - information-measuring channels of neutron flux density and statistical properties of long series of experimental measurements of intervals between acts of registration of radioactive decay (on the example of alpha radiation of a radiator of the industrial chamber division type CST-31) neutron sources, accumulations of fissile materials, spent fuel assemblies with spent nuclear fuel. The paper investigates the correlation properties of signals from neutron detectors of the VVER-1000 neutron flux control apparatus and direct charge detectors in the VVR-M research assembly. The purpose of the work is to use the upgraded hardware and software complex to obtain new experimental data and to detect in noise-like signals from both neutron flux density detectors and signals from regular nuclear control systems, hidden information about the current state of fissile materials and current values ​​of controlled nuclear installation parameters. Methods of research - passive neutron radiometry, wavelet analysis of long series of experimental data, classical methods of statistical analysis are applied in the work. Results and their novelty - the hardware and software complex has been modernized, which includes the development and installation of a detection unit with two separation chambers, the use of a modern B-471 event log in the information-measuring channel (IMC). Research has experimentally determined the dead time of the measuring channel. In the course of the work, special software was developed (programs in the environment of the mathematical package SciLab, and the package for processing long rows of data in IDL. Product Description popup.authors Avgustov Volodymyr V. Borysenko Volodymyr I. Goranchuk Vadym V. Kuchmagra Oleksandr A. Odynokin Georgii I. Piontkovskyi Yurii F. Sydoruk Mykola M. Skorbun Anatolii D. Stadnyk Sergii M. popup.nrat_date 2020-04-02 Close