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arXiv · 1702.02465

Radiogenic Neutron Yield Calculations for Low-Background Experiments

S. Westerdale·P. D. Meyers
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Abstract

Nuclear recoil backgrounds are one of the most dangerous backgrounds for many dark matter experiments. A primary source of nuclear recoils is radiogenic neutrons produced in the detector material itself. These neutrons result from fission and $(α,n)$ reactions originating from uranium and thorium contamination. In this paper, we discuss neutron yields from these sources. We compile a list of $(α,n)$ yields for many materials common in low-background detectors, calculated using NeuCBOT, a new tool introduced in this paper, available at https://github.com/shawest/neucbot. These calculations are compared to computations made using data compilations and SOURCES-4A

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S. Westerdale, P. D. Meyers. 2017-06-17. Radiogenic Neutron Yield Calculations for Low-Background Experiments. https://doi.org/10.1016/j.nima.2017.09.007

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