Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 606, Issue 3, Pages 651-660Publisher
ELSEVIER
DOI: 10.1016/j.nima.2009.04.032
Keywords
(alpha, n) neutrons; Dark matter detection
Categories
Funding
- NSF [0758120]
- Office of Research at The University of South Dakota
- Laboratory Directed Research and Development
- Division Of Physics
- Direct For Mathematical & Physical Scien [758120] Funding Source: National Science Foundation
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Neutrons from (alpha, n) reactions through thorium and uranium decays are important sources of background for direct dark matter detection. The neutron yields and energy spectra from a range of materials that are used to build dark matter detectors are calculated and tabulated. In addition to thorium and uranium decays, we found that alpha-particles from samarium, often the dopant of the window materials of photomultiplier tubes (PMT), are also an important source of neutron yield. The results in this paper can be used as the input to Monte Carlo simulations for many materials that will be used for next generation experiments. Published by Elsevier B.V.
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