Speakers
Description
The LUMINEU project has recently set up a technology for the development
of high-performance scintillating bolometers containing the nuclide
100Mo, in the framework of the R&D activities towards the proposed
tonne-scale neutrinoless double beta decay experiment CUPID. Using in
particular Li2100MoO4 detectors, high energy resolution (5-6 keV FWHM at
2615 keV), excellent alpha background rejection (>99.9%) and extreme
radiopurity (below 0.005 mBq/kg U/Th intrinsic activity) have been
demonstrated in multiple tests with remarkable reproducibility.
Moreover, with only 0.1 kg x y of 100Mo exposure, the measured
two-neutrino double beta decay half-life is one of the most precise
values ever reported. As a follow-up of this activity, a demonstrator
named CUPID-Mo is collecting data in the Modane underground laboratory
in France. CUPID-Mo consists of twenty 0.2-kg 100Mo-enriched Li2MoO4
scintillating bolometers (containing more than 2 kg of 100Mo) to be
operated for at least 0.5 yr, providing a sensitivity to 100Mo larger
than 10^24yr. CUPID-Mo is a very important demonstrator for the
implementation of CUPID, as the CUPID-Mo detectors follow closely the
configuration chosen for the baseline of CUPID.
| Author's Name | Claudia Nones |
|---|---|
| Author's Institute | IRFU/DPhP |
| Author's e-mail | claudia.nones@cea.fr |
| Abstract Title | Lithium molybdate scintillating bolometers for double beta decay |
| Subject | Neutrinos |
