Development and underground test of radiopure ZnMoO4 scintillating bolometers for the LUMINEU 0 nu 2 beta project
E. Armengaud
(1)
,
Q. Arnaud
(2)
,
C. Augier
(2)
,
A. Benoit
(3)
,
L. Berge
(4)
,
S. Boiko R.
(5)
,
T. Bergmann
(6)
,
J. Blueme
(6)
,
A. Broniatowski
(4)
,
V. Brudanin
(7)
,
P. Camus
(8)
,
A. Cazes
(2)
,
M. Chapellier
(4)
,
F. Charlieux
(2)
,
M. Chernyak D.
(4)
,
N. Coron
(9)
,
P. Coulter
(10)
,
A. Danevich F.
(5)
,
T. de Boissiere
(1)
,
R. Decourt
(11)
,
M. de Jesus
(2)
,
L. Devoyon
(12)
,
A. Drillien
(4)
,
L. Dumoulin
(4)
,
K. Eitel
(6)
,
C. Enss
(13)
,
D. Filosofov
(7)
,
A. Fleischmann
(13)
,
N. Foerster
(6)
,
N. Fourches
(1)
,
J. Gascon
(2)
,
L. Gastaldo
(13)
,
G. Gerbier
(1)
,
A. Giuliani
(4)
,
D. Gray
(1)
,
M. Gros
(1)
,
L. Hehn
(6)
,
S. Henry
(10)
,
S. Herve
(4)
,
G. Heuermann
(6)
,
V. Humbert
(4)
,
M. Ivanov I.
(14)
,
A. Juillard
(2)
,
C. Kefelian
(2)
,
M. Kleifges
(6)
,
H. Kluck
(6)
,
V. Kobychev V.
(5)
,
F. Koskas
(12)
,
V. Kozlov
(6)
,
H. Kraus
(10)
,
A. Kudryavtsev
(15)
,
Hélène Le Sueur
(4)
,
M. Loidl
(16)
,
P. Magnie
(1)
,
P. E. Makarov
(14)
,
M. Mancuso
(4)
,
P. de Marcillac
(4)
,
S. Marnieros
(4)
,
C. Marrache-Kikuchi
(4)
,
A. Menshikov
(6)
,
G. Nasonov S.
(14)
,
F. X. Navick
(1)
,
C. Nones
(1)
,
E. Olivieri
(4)
,
P. Pari
(17)
,
B. Paul
(1)
,
Y. Penichot
(1)
,
G. Pessina
(18)
,
M.C. Piro
(4)
,
O. Plantevin
(4)
,
V. Poda D.
(4)
,
T. Redon
(9)
,
M. Robinson
(15)
,
M. Rodrigues
(16)
,
S. Rozov
(7)
,
V. Sanglard
(2)
,
B. Schmidt
(6)
,
S. Scorza
(6)
,
N. Shlegel V.
(14)
,
B. Siebenborn
(6)
,
O. Strazzer
(1)
,
D. Tcherniakhovski
(6)
,
M. Tenconi
(4)
,
I. Tretyak V.
(5)
,
L. Vagneron
(2)
,
V. Vasiliev Ya
(14)
,
Matias Velázquez
(19)
,
Oudomsack Viraphong
(11)
,
J. Walker R.
(6)
,
M. Weber
(6)
,
E. Yakushev
(7)
,
X. Zhang
(10)
,
N. Zhdankov V.
(20)
,
L. Torres
(21)
1
IRFU -
Institut de Recherches sur les lois Fondamentales de l'Univers
2 IPNL - Institut de Physique Nucléaire de Lyon
3 NEEL - HELFA - Hélium : du fondamental aux applications
4 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
5 KINR - Kiev Institute for Nuclear Research
6 KIT - Karlsruhe Institute of Technology = Karlsruher Institut für Technologie
7 DLNP - Dzhelepov Laboratory of Nuclear Problems [Dubna]
8 NEEL - Cryo - Cryogénie
9 IAS - Institut d'astrophysique spatiale
10 University of Oxford
11 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
12 CEA - Commissariat à l'énergie atomique et aux énergies alternatives
13 Kirchhoff Institute for Physics
14 NIC - Nikolaev Institute of Inorganic Chemistry [Novosibirsk]
15 University of Sheffield [Sheffield]
16 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)
17 SPEC - UMR3680 - Service de physique de l'état condensé
18 INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
19 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
20 CML Ltd
21 IAS - Institut d'astrophysique spatiale
2 IPNL - Institut de Physique Nucléaire de Lyon
3 NEEL - HELFA - Hélium : du fondamental aux applications
4 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
5 KINR - Kiev Institute for Nuclear Research
6 KIT - Karlsruhe Institute of Technology = Karlsruher Institut für Technologie
7 DLNP - Dzhelepov Laboratory of Nuclear Problems [Dubna]
8 NEEL - Cryo - Cryogénie
9 IAS - Institut d'astrophysique spatiale
10 University of Oxford
11 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
12 CEA - Commissariat à l'énergie atomique et aux énergies alternatives
13 Kirchhoff Institute for Physics
14 NIC - Nikolaev Institute of Inorganic Chemistry [Novosibirsk]
15 University of Sheffield [Sheffield]
16 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)
17 SPEC - UMR3680 - Service de physique de l'état condensé
18 INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
19 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
20 CML Ltd
21 IAS - Institut d'astrophysique spatiale
E. Armengaud
- Fonction : Auteur
- PersonId : 980046
- IdRef : 117614165
V. Humbert
- Fonction : Auteur
- PersonId : 1292456
- IdHAL : vhumbert
- ORCID : 0000-0002-1259-7612
Hélène Le Sueur
- Fonction : Auteur
- PersonId : 180518
- IdHAL : helene-le-sueur
Matias Velázquez
- Fonction : Auteur
- PersonId : 1200371
- ORCID : 0000-0002-8822-8207
- IdRef : 070439060
Résumé
The LUMINEU (Luminescent Underground Molybdenum Investigation for NEUtrino mass and nature) project envisages a high-sensitivity search for neutrinoless double beta (0 nu 2 beta) decay of Mo-100 with the help of scintillating bolometers based on zinc molybdate (ZnMoO4) crystals. One of the crucial points for the successful performance of this experiment is the development of a protocol for producing high quality large mass ZnMoO4 crystal scintillators with extremely high internal radiopurity.
Here we report a significant progress in the development of large volume ZnMoO4 crystalline boules (with mass up to 1 kg) from deeply purified materials. We present and discuss the results achieved with two ZnMoO4 samples (with mass of about 0.3 kg each): one is a precursor of the LUMINEU project, while the other one was produced in the framework of LUMINEU with an improved purification / crystallization procedure. The two crystals were measured deep underground as scintillating bolometers in the EDELWEISS dilution refrigerator at the Laboratoire Souterrain de Modane (France) protected by a rock overburden corresponding to 4800 m w.e. The results indicate that both tested crystals are highly radiopure. However, the advanced LUMINEU sample shows a clear improvement with respect to the precursor, exhibiting only a trace internal contamination related with Po-210 at the level of 1 mBq/kg, while the activity of Ra-226 and Th-228 is below 0.005 mBq/kg. This demonstrates that the LUMINEU purification and crystal-growth procedures are very efficient and leads to radiopurity levels which exceedingly satisfy not only the LUMINEU goals but also the requirements of a next-generation 0 nu 2 beta experiment.
Mots clés
GRADIENT CZOCHRALSKI TECHNIQUE
DARK-MATTER SEARCH
SINGLE-CRYSTALS
gas and liquid scintillators)
CRYSTAL SCINTILLATORS
Hybrid detectors
Cryogenic detectors
Scintillators
LUMINESCENCE
Double-beta decay detectors
TUNGSTATES
scintillation and light emission processes (solid
GROWTH
PARTICLE PHYSICS
RADIOACTIVE CONTAMINATION
DOUBLE-BETA-DECAY
Domaines
Science des matériaux [cond-mat.mtrl-sci] Instrumentations et Détecteurs [physics.ins-det] Matière Condensée [cond-mat]
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