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28 March 2024
 
  » arxiv » 1510.5109

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Results of measurements of an environment neutron background at BNO INR RAS objects with the helium proportional counter
I.R. Barabanov ; R.A. Etezov ; Yu.M. Gavrilyuk ; A.M. Gangapshev ; A.M. Gezhaev ; V.V. Kazalov ; A.Kh. Khokonov ; V.V. Kuzminov ; S.I. Panasenko ; S.S. Ratkevich ;
Date 17 Oct 2015
AbstractA method of measurements of the environmental neutron background at the Baksan Neutrino Observatory of the INR RAS are described. Measurements were done by using of a proportional counter filled with mixture of Ar(2 at)+$^3$He(4 at). The results obtained at the surface and the underground laboratory of the BNO INR RAS are presented. It is shown that a neutron background in the underground laboratory at the 4900 m w.e. depth is decreased by $sim 260$ times without any special shield in a comparison with the Earth surface. A neutron flux density in the 5-1323.5~cm air height region is constant within the determination error and equal to $(7.1pm0.1_{ m{stat}}pm0.3_{ m{syst}}) imes10^{-3}$ s$^{-1}cdot$cm$^{-2}$.
Source arXiv, 1510.5109
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