Neutron Background from the (α, n) Reaction on 13C in the EDELWEISS-II experiment on direct search for weakly interacting particles of nonbaryonic cold dark matter
The purpose of the work is to evaluate the neutron background from an additional neutron source, the (α, n) reaction on 13C, in the polyethylene neutron shielding of the EDELWEISS-II experiment on the search for weakly interacting cold matter particles. The characteristic length of radon diffusion into polyethylene is obtained, the neutron energy spectrum is constructed, and the neutron flux from the (α, n) reaction is evaluated.
KeywordsDark Matter Radon Neutron Flux Radon Concentration Nucleus Letter
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- 1.E. A. Yakushev et al., “Search For Particles of Cold Nonbarion Dark Matter in EDELWEISS-II Experiment,” Izv. Vyssh. Uchebn. Zaved., Fiz. 53(6), 62–66 (2010).Google Scholar