Development of method and equipment for measuring the density of neutron flux from the reactor WWR-K
DOI:
https://doi.org/10.26577/RCPh.2020.v75.i4.10Keywords:
neutrons, neutron counters, neutron detector, amplifier, neutron flux, WWR-K reactor., neutron counters, neutron detector, amplifier, neutron flux, WWR-K reactorAbstract
The research reactor is a powerful source of neutron and gamma radiation resulting from nuclear reactions occurring in the reactor. Our project proposes the use of neutron counters of the SNM-18 type. Development of a method for the effective measurement of neutron background using portable gas-discharge neutron counters, also an adjustment and preparation of the registration system, development of the electronic part of detectors with large-area is proposed.
To create an automatic system that includes a set of equipment for continuous automatic, remote and rapid quantitative assessment of the neutron flux from a nuclear reactor in the mode real time. The developed equipment is used for the practical use of the method for determining the neutron flux density, which will make it possible to it is necessary to consider the laws of spatial variation of the neutron field. These neutrons have energies of the order of several MeV. The angular distribution of the generated neutrons is almost isotropic. Works on the various configurations of moderators and reflectors for the neutron flux from the WWR-K reactor was carried out The developed methodology will allow us to obtain conclusions about the distribution of neutron flux in the building where the reactor is located, also the effect of neutron flux on the environment from a working WWR-K research reactor located near Almaty city.
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