Freiburg 2008 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 86: Niederenergie-Neutrinophysik und Suche nach Dunkler Materie I

T 86.5: Vortrag

Montag, 3. März 2008, 17:50–18:05, KGII-HS 2004

Thermal Detector Model for Cryogenic Composite Detectors for the Dark Matter Experiments CRESST and EURECA — •Sabine Roth, Christian Ciemniak, Chiara Coppi, Franz von Feilitzsch, Achim Gütlein, Christian Isaila, Jean-Côme Lanfranchi, Sebastian Pfister, Walter Potzel, and Wolfgang Westphal — Physik-Department E15, Technische Universität München, James-Franck-Straße, D-85748 Garching

Weakly Interacting Massive Particles (WIMPs) are candidates for non-baryonic cold Dark Matter. The Dark Matter experiments CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) and the EURECA (European Underground Rare Event Calorimeter Array) project are aimed at the direct detection of WIMPs with modularised cryogenic detectors. To decouple the transition edge sensor production from the choice of the target material and to avoid heating cycles of the absorber crystal, a composite detector design is developed and studied. On the basis of an existing thermal detector model for cryogenic detectors, an extension to this model has been developed. This extended model can be expected to provide an enormous help when tailoring composite detectors to the requirements of various experiments.

This work has been supported by funds of the DFG (SFB 375, Transregio 27: "Neutrinos and Beyond"), the Munich Excellence Cluster Universe, the EU networks for Cryogenic Detectors (ERB-FMRXCT980167) and for Applied Cryogenic Detectors (HPRN-CT2002-00322), and the Maier-Leibnitz-Laboratorium (Garching).