Mainz 2014 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 54: Experimentelle Methoden der Astroteilchenphysik 2
T 54.4: Vortrag
Dienstag, 25. März 2014, 17:30–17:45, P7
Development of a combined photon and phonon detector for rare-event experiments — •Clemens Hassel1, Mathias Wegner1, Philipp C.-O. Ranitzsch1, Sebastian Kempf1, Loredana Gastaldo1, Andreas Fleischmann1, Christian Enss1, Xavier-Francois Navick2, Martin Loidl2, Matias Rodrigues2, Yong-Hamb Kim3, and Won-Sik Yoon3 — 1Kirchhoff Institute for Physics, Heidelberg University, Heidelberg, Germany — 2CEA, Saclay, France — 3Korea Research Institute of Standards and Science, Daejeon, Rep. of Korea
We developed a combined photon and phonon sensor to be applied in scintillator-based experiments searching for neutrinoless double beta decays and in experiments searching for dark matter such as weakly interacting massive particles (WIMPs). This research is motivated by the need to reduce the background of such experiment by increasing the discrimination among different types of particles interacting in the detector and to lower the energy threshold to be able to investigate the region of interest for low mass WIMPs. We expect to achieve an energy resolution below 100 eV (FWHM) and a signal rise-time of less than 200 microseconds in the phonon detector. For the photon detector we expect an energy resolution between 3 eV and 10 eV (FWHM) and a signal rise-time below 50 microseconds. We discuss the design and fabrication issues of the combined photon and phonon detector.