Scintillating bolometers based on ZnMoO${}_4$ and Zn${}^{100}$MoO${}_4$ crystals to search for 0$\nu$2$\beta$ decay of ${}^{100}$Mo (LUMINEU project): first tests at the Modane Underground Laboratory

Abstract

The technology of scintillating bolometers based on zinc molybdate (ZnMoO${}_4$) crystals is under development within the LUMINEU project to search for 0$\nu$2$\beta$ decay of ${}^{100}$Mo with the goal to set the basis for large scale experiments capable to explore the inverted hierarchy region of the neutrino mass pattern. Advanced ZnMoO${}_4$ crystal scintillators with mass of $\sim$~0.3 kg were developed and Zn${}^{100}$MoO${}_4$ crystal from enriched ${}^{100}$Mo was produced for the first time by using the low-thermal-gradient Czochralski technique. One ZnMoO${}_4$ scintillator and two samples (59 g and 63 g) cut from the enriched boule were tested aboveground at milli-Kelvin temperature as scintillating bolometers showing a high detection performance. The first results of the low background measurements with three ZnMoO${}_4$ and two enriched detectors installed in the EDELWEISS set-up at the Modane Underground Laboratory (France) are presented.

7 pages, 5 figures, Contribution to the proceedings of the 37th International Conference on High Energy Physics (ICHEP 2014), Valencia, Spain, 2-9 July 2014

References in corpus (2)

• Performance of ZnMoO4 crystal as cryogenic scintillating bolometer to search for double beta decay of molybdenum
• Enriched Zn${}^{100}$MoO${}_4$ scintillating bolometers to search for $0\nu 2\beta$ decay of ${}^{100}$Mo with the LUMINEU experiment

Cited by in corpus (2)

• Development of ${}^{100}$Mo-containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search
• Proceedings of the third French-Ukrainian workshop on the instrumentation developments for HEP