Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 53: Dark Matter II

T 53.3: Talk

Wednesday, April 1, 2020, 17:00–17:15, H-HS XIV

The xenon gas system for the DARWIN demonstrator — •Julia Müller — Physikalisches Institut, Albert-Ludwigs Universität Freiburg, Germany

DARWIN will be the ultimate liquid xenon-based dark matter detector with a sensitivity covering the entire accessible WIMP parameter space. With linear scales of about 2.6m its central low-background time projection chamber (TPC) and its technical realization will be challenging. We are currently setting up a large-scale demonstrator platform at the University of Freiburg which will feature a 2.8m diameter, flat (0.25m) cryostat for R&D in a liquid/gas xenon environment. Its maximal xenon content will be around 400 kg. This talk will present the xenon gas system required for xenon filling, purification, recuperation and long-term storage.