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Radiopurity requirements for the SuperNEMO experiment and the BiPo detector

Abstract : The main goal of the SuperNEMO collaboration is to try to observe neutrinoless double-β decay. This would prove that the neutrino is a Majorana particle (ν = bar nu). Today the best lower limits on half-lives of this process are set around 1024 - 1026 years as obtained by the NEMO-3 experiment [1] (for the 2β isotope 100Mo) and other experiments. SuperNEMO is the next generation experiment based on the NEMO-3 tracker-calorimeter detection principle. The targeted contamination levels for the source foils are lower than can be measured through γ spectroscopy. A more sensitive detector has been constructed to measure low contaminations in 208Tl (around few μBq/kg) and 214Bi (few dozen μBq/kg) in thin materials: the BiPo detector. BiPo-3 has been fully operational at the Laboratorio Subterráneo de Canfranc (LSC) since January, 2013. The construction, performance and calibration of the BiPo-3 detector will be covered as well as the radiopurity requirements for SuperNEMO.
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Submitted on : Friday, April 24, 2015 - 3:14:35 PM
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G. Eurin. Radiopurity requirements for the SuperNEMO experiment and the BiPo detector. Topical Research Meeting: Prospects in Neutrino Physics (NuPhys2013) 19–20 December 2013, London, UK, Dec 2013, London, United Kingdom. pp.012019, ⟨10.1088/1742-6596/598/1/012019⟩. ⟨in2p3-01145548⟩



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