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Photoneutron sources spectra calculation
https://doi.org/10.32446/0368-1025it.2021-7-54-59
Abstract
The issues of increasing the accuracy of determining the average energy and the type of energy distribution (shape of the spectrum) of neutrons from Sb-Be- and Ra-Be-sources are considered. The indicated photoneutron sources are used to calibrate the energy scales of neutron spectrometers and to determine the energy dependence of the sensitivity of radiometers and neutron dosimeters. A method is proposed for calculating the energy spectra of radionuclide neutron sources of the Sb-Be (γ, n) and Ra-Be (γ, n) types, and the calculation results are presented. The dependence of the spectrum of the source on its design is investigated. The correctness of the results of calculating the energy spectra of radionuclide sources has been confi rmed experimentally. The data obtained will be used to determine the energy dependence of the sensitivity of neutron spectrometers, radiometers and dosimeters.
About the Authors
N. N. Moiseev
D. I. Mendeleyev Institute for Metrology
Russian Federation
Russian Federation
Nikolaj N. Moiseev
St. Petersburg
E. M. Kruglov
D. I. Mendeleyev Institute for Metrology
Russian Federation
Russian Federation
Evgenij M. Kruglov
St. Petersburg
A. V. Didyk
D. I. Mendeleyev Institute for Metrology
Russian Federation
Russian Federation
Andrej V. Didyk
St. Petersburg
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Review
For citations:
Moiseev N.N., Kruglov E.M., Didyk A.V. Photoneutron sources spectra calculation. Izmeritel`naya Tekhnika. 2021;(7):54-59. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-7-54-59
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