Selected Publications

An Aboveground Pulse-Tube-Based Bolometric Test Facility for the Validation of the LUMINEU ZnMoO4 Crystals

M. Mancuso, D. M. Chernyak, F. A. Danevich, L. Dumoulin, A. Giachero, A. Giuliani, H. Godfrin, C. Gotti, I. M. Ivanov, M. Maino, E. P. Makarov, E. Olivieri, G. Pessina, V. N. Shlegel, A. Sultan, M. Tenconi, Ya. V. Vasiliev


The LUMINEU project aims at developing a pilot double beta decay experiment with the help of scintillating bolometers based on ZnMoO4 crystals enriched in the isotope under investigation, namely 100Mo. In the next months reg- ular deliveries of large-mass ZnMoO4 crystals are expected from NIIC (Novosi- birsk, Russia). It is therefore crucial for the LUMINEU program to test system- atically and in real time these samples in terms of bolometric properties, light yield and internal alpha contamination. In this paper we describe an aboveground cryogenic facility based on a dilution refrigerator coupled to a pulse-tube cooler capable performing these measurements. A 23.8 g ZnMoO4 crystal was fully char- acterised in this setup. We show also that macro-bolometers can be operated with high signal-to-noise ratio in liquid-free dilution refrigerators.

J. Low Temp. Phys. 176, 571 (2014)

doi: 10.1007/s10909-013-1044-x