Bonn 2020 – scientific programme
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T: Fachverband Teilchenphysik
T 53: Dark Matter II
T 53.2: Talk
Wednesday, April 1, 2020, 16:45–17:00, H-HS XIV
First results of a fully functional single-phase TPC — •Patrick Meinhardt — Physikalisches Insitut, Freiburg, Germany
Liquid-xenon dual-phase Time Projection Chambers (TPCs) are leading the field of direct dark matter search for WIMP masses above a few GeV/c2. As an alternative approach to overcome several challenges appearing when scaling up the dual-phase concept up to the size of the future DARWIN detector we investigate proportional scintillation in liquid xenon. In such single-phase TPC the charge signal is generated in the liquid phase by proportional scintillation close to very thin wires. The XeBRA (Xenon Based Research Apparatus) platform provides the possibility to run a small-scale TPC either in dual- or single-phase mode. First comparative results of the two individual detection concepts will be presented in this talk.