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Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 75: Dunkle Materie III

T 75.4: Talk

Wednesday, March 11, 2015, 17:30–17:45, K.11.23 (HS 32)

Active shielding concepts for future Dark Matter experiments — •Geertje Heuermann for the EURECA collaboration — Karlsruher Institut für Technologie, Institut für Experimentelle Kernphysik, Postfach 3640, 76021 Karlsruhe

Future dark matter experiments - such as EURECA and SuperCDMS - will reach for unprecedented sensitivities for the cross section of the WIMP-nucleon interaction. This requires an unparalleled suppression of the background. External and internal shielding together with an active veto system have to be installed to suppress multiple sources of background - an important of which being neutrons.
In this talk we will focus on the development of two potential active veto systems - a water Cherenkov detector, which will allow to vetoing muon-induced neutron events - and a loaded scintillator acting as a dedicated ambient neutron veto in the vicinity of the detectors.
This work is supported in part by the German ministry of science and education (BMBF Verbundforschung ATP Proj.-Nr. 05A14VKA).

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