Hamburg 2016 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 39: Suche nach dunkler Materie II
T 39.9: Vortrag
Montag, 29. Februar 2016, 18:50–19:05, VMP9 SR 28
Qualification Tests of 248 Photomultiplier Tubes for XENON1T — •Ludwig Rauch — Max-Planck-Insitut für Kernphysik, Heidelberg, Deutschland
The dark matter direct-detection experiment XENON1T employs photosensors with high detection efficiencies to obtain a low energy threshold of the detector enabling a search for small WIMP masses. In addition, the tube is designed for a low intrinsic radioactivity to minimize the background of the experiment. The expected sensitivity of the dark matter interaction cross sections to the xenon nucleon reaches 2×1047 cm2 with a particle with mass of 50 GeV/c2.
This talk presents the setups and test procedures of the 248 installed photomultiplier tubes (PMTs) for XENON1T in order to decide whether they fulfil the experiment’s requirements. In addition, an analysis of the performance of the used PMTs is presented and the implications for a dark matter search are outlined.