DarkSide-50 is a two phase argon TPC for direct dark matter detection which is installed at the Gran Sasso underground laboratory, Italy. DarkSide-50 has a 50-kg active volume and will make use of underground argon low 3in9Ar. The TPC is installed inside an active neutron veto made with boron-loaded high radiopurity liquid scintillator. The neutron veto is installed inside a 1000 m3 water Cherenkov muon veto. The DarkSide-50 TPC and cryostat are assembled in two radon-free clean rooms to reduce radioactive contaminants. The overall design aims for a background free exposure after selection cuts are applied. Theexpected sensitivity for WIMP-nucleon cross section is of the order of 1−045 cm2 for WIMP masses around 100 GeV/c2. The commissioning and performance of the detector are described. Details of thelow-radioactivity underground argon and other unique features of the projects are reported.
Mari, S.M., The Darkside, C. (2015). DarkSide-50: a WIMP search with a two-phase argon TPC. PHYSICS PROCEDIA, 61, 124-129 [10.1016/j.phpro.2014.12.021].
DarkSide-50: a WIMP search with a two-phase argon TPC
MARI, Stefano Maria;
2015-01-01
Abstract
DarkSide-50 is a two phase argon TPC for direct dark matter detection which is installed at the Gran Sasso underground laboratory, Italy. DarkSide-50 has a 50-kg active volume and will make use of underground argon low 3in9Ar. The TPC is installed inside an active neutron veto made with boron-loaded high radiopurity liquid scintillator. The neutron veto is installed inside a 1000 m3 water Cherenkov muon veto. The DarkSide-50 TPC and cryostat are assembled in two radon-free clean rooms to reduce radioactive contaminants. The overall design aims for a background free exposure after selection cuts are applied. Theexpected sensitivity for WIMP-nucleon cross section is of the order of 1−045 cm2 for WIMP masses around 100 GeV/c2. The commissioning and performance of the detector are described. Details of thelow-radioactivity underground argon and other unique features of the projects are reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
