Characterization of the QUartz Photon Intensifying Detector (QUPID) Artin Teymourian UCLA Dark Matter Group Dept. of Physics and Astronomy 06/10/2011Artin Teymourian, UCLA2 Overview Dual Phase TPC QUPID Concept QUPID Design Goals Test Systems/Results Support Structure Future DM Experiments Conclusion 06/10/20113Artin Teymourian, UCLA Dual Phase TPC 06/10/20114Artin Teymourian, UCLA Photo Cathode (-6 kV) APD (0 V) Quartz Al coating APD (0 V) Photo Cathode (-6 kV) Made by Synthetic Silica only. QUPID, The QUartz Photon Intensifying Detector 06/10/20115Artin Teymourian, UCLA 06/10/20116Artin Teymourian, UCLA Actual QUPID 7Artin Teymourian, UCLA06/10/2011 QUPID 3 inch R inch R inch XENON10 XENON100 XMASS LUX DarkSide XENON1T MAX, XAX Comparison of Low-radioactive Photon Detectors from Hamamatsu QUPID Design Goals 06/10/2011Artin Teymourian, UCLA8 R8520 Radioactivity30% Total Gain>10 6 Pulse Width~10 ns Transit Time Spread~1 ns The QUPID should be better than standard PMTs in all aspects In addition: Photon Counting Capabilities Good Photocathode Uniformity Good Collection Efficiency Radioactivity PhototubeEffective AreaUnits 238 U 226 Ra 232 Th 40 K 60 Co R cm 2 mBq/cm 2 10 6 >10 5 (>10 6 with amplifier) APD Leakage Current---