The spectrum of neutrons and its importance for nuclear power engineering

Most of the electricity produced in nuclear power plants comes from pressurized water nuclear reactors. Currently, the main fuel of pressurized water nuclear reactors is enriched uranium. The thermal energy is produced by fission of uranium 235 using slow (thermal) neutrons. Generation IV reactors are already contemplate obtaining thermal energy from the fission of uranium 238 using fast neutron. Neutrons interact simultaneously with materials present in a nuclear reactor. Probability and mode of interaction depend on the neutron energy. Therefore, the paper focuses on the measurement of neutron spectra and neutron field distribution using the reaction rate a gas filled detector in experimental stand SVICKA.