Development and underground test of radiopure ZnMoO4 scintillating bolometers for the LUMINEU 0 nu 2 beta project

E. Armengaud; Q. Arnaud; C. Augier; A. Benoit; L. Berge; S. Boiko R.; T. Bergmann; J. Blueme,; A. Broniatowski; V. Brudanin; P. Camus; A. Cazes; M. Chapellier; F. Charlieux; M. Chernyak D.; N. Coron; P. Coulter; A. Danevich F.; T. de Boissiere; R. Decourt; M. de Jesus; L. Devoyon; A. Drillien; L. Dumoulin; K. Eitel; C. Enss; D. Filosofov; A. Fleischmann; N. Foerster; N. Fourches; J. Gascon; L. Gastaldo; G. Gerbier; A. Giuliani; D. Gray; M. Gros; L. Hehn; S. Henry; S. Herve; G. Heuermann; V. Humbert; M. Ivanov I.; A. Juillard; C. Kefelian; M. Kleifges; H. Kluck; V. Kobychev V.; F. Koskas; V. Kozlov; H. Kraus; A. Kudryavtsev,v.; Hélène Le Sueur; M. Loidl; P. Magnie,; P. Makarov E.; M. Mancuso; P. de Marcillac; S. Marnieros; C. Marrache-Kikuchi; A. Menshikov; G. Nasonov S.; -F. Navick X.; C. Nones; E. Olivieri; P. Pari; B. Paul; Y. Penichot; G. Pessina; M.C. Piro; O. Plantevin; V. Poda D.; T. Redon; M. Robinson; M. Rodrigues; S. Rozov; V. Sanglard; B. Schmidt; S. Scorza; N. Shlegel V.; B. Siebenborn; O. Strazzer; D. Tcherniakhovski; M. Tenconi; Lionel Torres; I. Tretyak V.; L. Vagneron; V. Vasiliev Ya; Matias Velázquez; Oudomsack Viraphong; J. Walker R.; M. Weber; E. Yakushev; X. Zhang; N. Zhdankov V.

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 ¹³ C. Enss ¹⁴ D. Filosofov ⁷ A. Fleischmann ¹⁴ N. Foerster ¹³ N. Fourches ¹ J. Gascon ² L. Gastaldo ¹⁴ 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. ¹⁵ 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,v. ¹⁶ Hélène Le Sueur ⁴ M. Loidl ¹⁷ P. Magnie, ¹ P. Makarov E. ¹⁵ M. Mancuso ⁴ P. de Marcillac ⁴ S. Marnieros ⁴ C. Marrache-Kikuchi ⁴ A. Menshikov ⁶ G. Nasonov S. ¹⁵ -F. Navick X. ¹ C. Nones ¹ E. Olivieri ⁴ P. Pari ¹⁸ B. Paul ¹ Y. Penichot ¹ G. Pessina ¹⁹ M.C. Piro ⁴ O. Plantevin ⁴ V. Poda D. ⁴ T. Redon ⁹ M. Robinson ¹⁶ M. Rodrigues ¹⁷ S. Rozov ²⁰ V. Sanglard ² B. Schmidt ⁶ S. Scorza ⁶ N. Shlegel V. ¹⁵ B. Siebenborn ⁶ O. Strazzer ¹ D. Tcherniakhovski ⁶ M. Tenconi ⁴ Lionel Torres ⁹ I. Tretyak V. ⁵ L. Vagneron ² V. Vasiliev Ya ¹⁵ Matias Velázquez ¹¹ Oudomsack Viraphong ¹¹ J. Walker R. ⁶ M. Weber ⁶ E. Yakushev ²⁰ X. Zhang ¹⁰ N. Zhdankov V. ²¹

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

2 IPNL - Institut de Physique Nucléaire de Lyon

3 HELFA - Hélium : du fondamental aux applications

NEEL - Institut Néel

4 CSNSM PS1

CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière

5 KINR - Kiev Institute for Nuclear Research

6 KIT - Karlsruhe Institute of Technology

7 JINR-DUBNA - Laboratory of Particle Physics

8 Cryo - Cryogénie

NEEL - Institut Néel

9 IAS - Institut d'astrophysique spatiale

10 University of Oxford [Oxford]

11 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

12 CEA - Commissariat à l'énergie atomique et aux énergies alternatives

13 KIT - Karlsruher Institut für Technologie

14 Kirchhoff Institute for Physics

15 NIC - Nikolaev Institute of Inorganic Chemistry [Novosibirsk]

16 University of Sheffield [Sheffield]

17 LNHB - Laboratoire National Henri Becquerel

DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I

18 IRAMIS - Institut Rayonnement Matière de Saclay

19 INFN - Istituto Nazionale di Fisica Nucleare [Milano]

20 JINR - Joint Institute for Nuclear Research

21 CML Ltd

Abstract : 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.

Keywords : scintillation and light emission processes (solid Scintillators Cryogenic detectors DOUBLE-BETA-DECAY Hybrid detectors CRYSTAL SCINTILLATORS gas and liquid scintillators) GRADIENT CZOCHRALSKI TECHNIQUE DARK-MATTER SEARCH SINGLE-CRYSTALS TUNGSTATES Double-beta decay detectors LUMINESCENCE GROWTH PARTICLE PHYSICS RADIOACTIVE CONTAMINATION

Document type :

Journal articles

Domain :

Physics [physics] / Condensed Matter [cond-mat] / Materials Science [cond-mat.mtrl-sci]

Physics [physics] / Physics [physics] / Instrumentation and Detectors [physics.ins-det]

Physics [physics] / Condensed Matter [cond-mat]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-01186517
Contributor : Emilie Bonnardel <>
Submitted on : Tuesday, August 25, 2015 - 10:34:21 AM
Last modification on : Wednesday, September 4, 2019 - 1:40:14 PM

Development and underground test of radiopure ZnMoO4 scintillating bolometers for the LUMINEU 0 nu 2 beta project

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Development and underground test of radiopure ZnMoO4 scintillating bolometers for the LUMINEU 0 nu 2 beta project

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