Journal
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ELSEVIER
DOI: 10.1016/j.nima.2019.162784
Keywords
Neutrino physics; Coherent elastic neutrino-nucleus scattering; Low temperature detectors; Scintillating bolometers; Cryogenics
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Funding
- Cross-Disciplinary Program on Instrumentation and Detection of CEA, the French Alternative Energies and Atomic Energy Commission, France
- P2IO LabEx [ANR-10-LABX-0038, ANR-11-IDEX-0003-01]
- Ministry of Science and High Education of the Russian Federation, Russia [RFMEFI57418X0186]
- IDEATE International Associated Laboratory (LIA)
- program of the National Academy of Sciences of Ukraine Fundamental research on high-energy and nuclear physics (International cooperation)
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The first observation of coherent elastic neutrino-nucleus scattering (CE nu NS), reported by the COHERENT Collaboration in 2017, paved the way for a new generation of experiments using reactor (nu) over bar (e) and aiming at precisely measuring this process. In this context, the BASKET (Bolometers At Sub-KeV Energy Thresholds) R&D project investigates the use of cryogenic detectors for a reactor CE nu NS experiment. This article reports on the first test of a Mo-doped lithium tungstate scintillating bolometer (empty set18 x 7 mm, 8 g), performed in an aboveground laboratory at CSNSM, Orsay (France). The detector bolometric performance (energy and time response, particle identification capabilities) and radiopurity have been studied and confirm the promising potential of lithium tungstate-based bolometric detectors for the measurement of CE nu NS at reactors.
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