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  • A Cryogenic Detector Charac...
    Langenkämper, A.; Defay, X.; Ferreiro Iachellini, N.; Kinast, A.; Lanfranchi, J.-C.; Lindner, E.; Mancuso, M.; Mondragón, E.; Münster, A.; Ortmann, T.; Potzel, W.; Schönert, S.; Strauss, R.; Ulrich, A.; Wawoczny, S.; Willers, M.

    Journal of low temperature physics, 12/2018, Letnik: 193, Številka: 5-6
    Journal Article

    The Physics Department of the Technical University of Munich operates a shallow underground detector laboratory in Garching, Germany. It provides ∼ 160 m 2 of laboratory space which is shielded from cosmic radiation by ∼ 6 m of gravel and soil, corresponding to a shielding of ∼ 15 m . w . e . . The laboratory also houses a cleanroom equipped with work- and wetbenches, a chemical fumehood as well as a spin-coater and a mask-aligner for photolithographic processing of semiconductor detectors. Furthermore, the shallow underground laboratory runs two high-purity germanium detector screening stations, a liquid argon cryostat and a 3 He– 4 He dilution refrigerator with a base temperature of ≤ 12 - 14 mK . The infrastructure provided by the shallow laboratory is particularly relevant for the characterization of CaWO 4 target crystals for the CRESST-III experiment, detector fabrication and assembly for rare event searches. Future applications of the laboratory include detector development in the framework of coherent neutrino nucleus scattering experiments ( ν -cleus) and studying its potential as a site to search for MeV-scale dark matter with gram-scale cryogenic detectors.