Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 31: Direkte Suche nach Dunkler Materie II

T 31.5: Talk

Tuesday, March 26, 2019, 17:00–17:15, H09

The Münster Dual Phase Time Projection Chamber — •Henning Schulze Eißing — Institut für Kernphysik, WWU Münster

The XENON Dark Matter Project utilizes a dual phase time projection chamber (TPC) to directly search for Weakly Interacting Massive Particles (WIMPs).

A smaller TPC was built in Münster to perform different investigations which include studies on electron lifetime, a measure of the xenon purity, as well as studies on different calibration sources. Additionally, the detector was conceived for teaching purposes.

The Münster TPC uses a cylindrical detector filled with up to 2.6 kg liquid and gaseous xenon as active volume monitored by 14 photomultipliers. The raw data are processed by PAX, the processor for analyzing XENON, which was developed for the XENON1T experiment and adapted for the use with the Münster TPC.

The working principle of the detector will be outlined and different measurements will be shown.

The TPC was built from funds by DFG Großgeräte.