Thermal detector model for cryogenic composite detectors for the dark matter experiments CRESST and EURECA

Details Thermal detector model for cryogenic composite detectors for the dark matter experiments CRESST and EURECA Thermal detector model for cryogenic composite detectors for the dark matter experiments CRESST and EURECA

2008-09-30

arxiv.org/abs/0809.5183v1

J.Phys.Conf.Ser.136:042085,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

To appear in Journal of Physics: Conference Series; Proceedings of Neutrino 2008, Christchurch, New Zealand

Scientific paper

10.1088/1742-6596/136/4/042085

The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) and the EURECA (European Underground Rare Event Calorimeter Array) experiments are direct dark matter search experiments where cryogenic detectors are used to detect spin-independent, coherent WIMP (Weakly Interacting Massive Particle)-nucleon scattering events by means of the recoil energy. The cryogenic detectors use a massive single crystal as absorber which is equipped with a TES (transition edge sensor) for signal read-out. They are operated at mK-temperatures. In order to enable a mass production of these detectors, as needed for the EURECA experiment, a so-called composite detector design (CDD) that allows decoupling of the TES fabrication from the optimization procedure of the absorber single-crystal was developed and studied. To further investigate, understand and optimize the performance of composite detectors a detailed thermal detector model which takes into account the CDD has been developed.

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