Abstract
A new R&D on lithium molybdate scintillators has begun within a project CLYMENE (Czochralski growth of Li 2 MoO 4 crYstals for the scintillating boloMeters used in the rare EveNts sEarches). One of the main goals of the CLYMENE is a realization of a Li 2 MoO 4 crystal growth line to be complementary to the one recently developed by LUMINEU in view of a mass production capacity for CUPID, a next-generation tonne-scale bolometric experiment to search for neutrinoless double-beta decay. In the present paper we report the investigation of performance and radiopurity of 158-g and 13.5-g scintillating bolometers based on a first large-mass (230 g) Li 2 MoO 4 crystal scintillator developed within the CLYMENE project. In particular, a good energy resolution (2–7 keV FWHM in the energy range of 0.2–5 MeV), one of the highest light yield (0.97 keV/MeV) amongst Li 2 MoO 4 scintillating bolometers, an efficient alpha particles discrimination (10σ) and potentially low internal radioactive contamination (below 0.2–0.3 mBq/kg of U/Th, but 1.4 mBq/kg of 210 Po) demonstrate prospects of the CLYMENE in the development of high quality and radiopure Li 2 MoO 4 scintillators for CUPID.
| Original language | English |
|---|---|
| Pages (from-to) | 87-91 |
| Number of pages | 5 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 891 |
| DOIs | |
| Publication status | Published - May 21 2018 |
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Keywords
- Bolometer
- Cryogenic detector
- Crystal scintillator
- Double-beta decay
- Lithium molybdate
- Radiopurity
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
Cite this
First scintillating bolometer tests of a CLYMENE R&D on Li 2 MoO 4 scintillators towards a large-scale double-beta decay experiment. / Buşe, G.; Giuliani, A.; de Marcillac, P.; Marnieros, S.; Nones, C.; Novati, V.; Olivieri, E.; Poda, D. V.; Redon, T.; Sand, J. B.; Veber, P.; Velázquez, M.; Zolotarova, A. S.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 891, 21.05.2018, p. 87-91.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - First scintillating bolometer tests of a CLYMENE R&D on Li 2 MoO 4 scintillators towards a large-scale double-beta decay experiment
AU - Buşe, G.
AU - Giuliani, A.
AU - de Marcillac, P.
AU - Marnieros, S.
AU - Nones, C.
AU - Novati, V.
AU - Olivieri, E.
AU - Poda, D. V.
AU - Redon, T.
AU - Sand, J. B.
AU - Veber, P.
AU - Velázquez, M.
AU - Zolotarova, A. S.
PY - 2018/5/21
Y1 - 2018/5/21
N2 - A new R&D on lithium molybdate scintillators has begun within a project CLYMENE (Czochralski growth of Li 2 MoO 4 crYstals for the scintillating boloMeters used in the rare EveNts sEarches). One of the main goals of the CLYMENE is a realization of a Li 2 MoO 4 crystal growth line to be complementary to the one recently developed by LUMINEU in view of a mass production capacity for CUPID, a next-generation tonne-scale bolometric experiment to search for neutrinoless double-beta decay. In the present paper we report the investigation of performance and radiopurity of 158-g and 13.5-g scintillating bolometers based on a first large-mass (230 g) Li 2 MoO 4 crystal scintillator developed within the CLYMENE project. In particular, a good energy resolution (2–7 keV FWHM in the energy range of 0.2–5 MeV), one of the highest light yield (0.97 keV/MeV) amongst Li 2 MoO 4 scintillating bolometers, an efficient alpha particles discrimination (10σ) and potentially low internal radioactive contamination (below 0.2–0.3 mBq/kg of U/Th, but 1.4 mBq/kg of 210 Po) demonstrate prospects of the CLYMENE in the development of high quality and radiopure Li 2 MoO 4 scintillators for CUPID.
AB - A new R&D on lithium molybdate scintillators has begun within a project CLYMENE (Czochralski growth of Li 2 MoO 4 crYstals for the scintillating boloMeters used in the rare EveNts sEarches). One of the main goals of the CLYMENE is a realization of a Li 2 MoO 4 crystal growth line to be complementary to the one recently developed by LUMINEU in view of a mass production capacity for CUPID, a next-generation tonne-scale bolometric experiment to search for neutrinoless double-beta decay. In the present paper we report the investigation of performance and radiopurity of 158-g and 13.5-g scintillating bolometers based on a first large-mass (230 g) Li 2 MoO 4 crystal scintillator developed within the CLYMENE project. In particular, a good energy resolution (2–7 keV FWHM in the energy range of 0.2–5 MeV), one of the highest light yield (0.97 keV/MeV) amongst Li 2 MoO 4 scintillating bolometers, an efficient alpha particles discrimination (10σ) and potentially low internal radioactive contamination (below 0.2–0.3 mBq/kg of U/Th, but 1.4 mBq/kg of 210 Po) demonstrate prospects of the CLYMENE in the development of high quality and radiopure Li 2 MoO 4 scintillators for CUPID.
KW - Bolometer
KW - Cryogenic detector
KW - Crystal scintillator
KW - Double-beta decay
KW - Lithium molybdate
KW - Radiopurity
UR - http://www.scopus.com/inward/record.url?scp=85042940645&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85042940645&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2018.02.101
DO - 10.1016/j.nima.2018.02.101
M3 - Article
AN - SCOPUS:85042940645
VL - 891
SP - 87
EP - 91
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -