New neutron reference fields, based on a 239Pu–Be source, intended for increasing the accuracy of measurements of neutron dosimeters and radiometers in the IHEP accelerator complex are described. A Bonner SB-RSU-01 spectrometer was used to measure the spectra of the neutron reference fields. The BON95 code was used to reconstruct the spectra; the initial spectra for the iteration procedure were determined by parameterization or by a calculation using the FAN15 code. Good agreement was obtained between the neutron spectra and the integral characteristics of the reference fields reconstructed by the two methods.
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Translated from Atomnaya Énergiya, Vol. 126, No. 5, pp. 275–280, May, 2019.
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Peleshko, V.N., Savitskaya, E.N., Sannikov, A.V. et al. 239Pu–Be-Source Based Neutron Reference Fields. At Energy 126, 313–319 (2019). https://doi.org/10.1007/s10512-019-00556-8
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DOI: https://doi.org/10.1007/s10512-019-00556-8