Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 109: Experimentelle Techniken der Astroteilchenphysik 2

T 109.2: Vortrag

Montag, 4. März 2013, 17:05–17:20, HSZ-101

LAr instrumentation studies for low background experiments — •Jozsef Janicsko Csathy — Technische Universität München

We investigated different options to instrument a large volume of liquid Argon in a low background experiment like GERDA with special regard to alternatives to PMTs. The difficulty consists in producing all the components with a radiopurity that is compatible with the background goal of the experiment. WLS fibers read out with SiPMs seem to offer the best compromise between veto efficiency and induced background. We present optimization studies for about one ton instrumented LAr volume and preliminary results from our test stand at TUM. This work is supported in part by the BMBF.