DPG Phi
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DPG

Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 36: Neutrinoloser Doppelbeta-Zerfall II

T 36.8: Talk

Monday, February 29, 2016, 18:35–18:50, VMP9 SR 07

Development of phonon and photon detectors for rare events searches using scintillating crystals — •Felix Ahrens1, Christian Enss1, Andreas Fleischmann1, Loredana Gastaldo1, Clemens Hassel1, Sebastian Hendricks1, Sebastian Kempf1, Yong-Hamb Kim2, Martin Loidl3, Xavier-François Navick3, and Matias Rodrigues31Kirchhoff-Institut für Physik, Universität Heidelberg, Deutschland — 2Korea Research Institute of Standards and Science, Daejeon, Rep. of Korea — 3Commissariat à l’énergie atomique, Saclay, France

The use of scintillating crystals in cryogenic experiments searching for neutrinoless double beta decay and for direct interaction of dark matter particles allows for an efficient background reduction due to particle discrimination. We develop phonon and photon detectors based on metallic magnetic calorimeters (MMCs) to perform simultaneous measurements of heat and light generated by the interaction of a particle in a scintillating crystal. As designed we expect for the phonon sensor an energy resolution of Δ EFWHM<100 eV and a signal rise time τ<200 µs whereas for the photon detector we expect Δ EFWHM<5 eV and τ<50 µs. We discuss the design and the fabrication of these detectors and present recent results.

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