Radiopure ZnMoO4 scintillating bolometers for the LUMINEU double-beta experiment

V. Poda 1 E. Armengaud 2 Q. Arnaud 3 C. Augier 3 S. Barabash 4 A. Benoît 5 L. Berge 1 R. Boiko 6 T. Bergmann 7 J. Blumer 8 A. Broniatowski 1 V. Brudanin 9 P. Camus 10 A. Cazes 3 B. Censier 3 M. Chapellier 1 F. Charlieux 3 M. Chernyak 1 N. Coron 11 P. Coulter 12 G. Cox 7 A. Danevich 6 T. De Boissiere 2 R. Decourt 13 M. De Jesus 3 L. Devoyon 14 A. Drillien 1 L. Dumoulin 15 K. Eitel 16 C. Enss 17 D. Filosofov 9 A. Fleischmann 17 N. Fourches 2 J. Gascon 3 L. Gastaldo 17 G. Gerbier 2 A. Giuliani 15 M. Gros 2 L. Hehn 7 S. Henry 18 S. Hervé 2 G. Heuermann 7 V. Humbert 19 M. Ivanov 20 A. Juillard 3 C. Kefelian 3 M. Kleifges 7 H. Kluck 7 V. Kobychev 6 F. Koskas 14 V. Kozlov 7 H. Kraus 18 V. Kudryavtsev 21 H. Le Sueur 19 M. Loidl 22 P. Magnier 2 E. Makarov 20 M. Mancuso 19 P. De Marcillac 19 S. Marnieros 19 C. Marrache-Kikuchi 19 A. Menshikov 23 S. Nasonov 20 X-F. Navick 2 C. Nones 2 E. Olivieri 19 P. Pari 24 B. Paul 2 Y. Penichot 2 G. Pessina 25 M. Piro 19 O. Plantevin 19 T. Redon 11 M. Robinson 21 M. Rodrigues 22 S. Rozov 26 V. Sanglard 3 B. Schmidt 7 V. Shlegel 20 B. Siebenborn 7 O. Strazzer 14 D. Tcherniakhovski 7 M. Tenconi 15 L. Torres 11 V. Tretyak 6 L. Vagneron 3 V. Vasiliev 20 M. Velazquez 13 O. Viraphong 13 R. Walker 7 M. Weber 7 E. Yakushev 26 X. Zhang 19 V. Zhdankov 27
10 Cryo - Cryogénie
NEEL - Institut Néel
15 CSNSM PS1
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
22 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
24 LC - Laboratoire de Cryogénie
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : The results of R&D of radiopure zinc molybdate (ZnMoO4) based scintillating bolometers for the LUMINEU (Luminescent Underground Molybdenum Investigation for NEUtrino mass and nature) double-beta decay experiment are presented. A dedicated two-stage molybdenum purification technique (sublimation in vacuum and recrystallization from aqueous solutions) and an advanced directional solidification method (the low-thermal-gradient Czochralski technique) were utilized to produce high optical quality large mass (∼1 kg) ZnMoO4 crystal boules and first 100Mo (99.5%) enriched Zn100MoO4 crystal scintillator (mass of ∼0.2 kg). Scintillating bolometers based on ZnMoO4 (≈ 0.33 kg) and Zn100MoO4 (≈ 0.06 kg) scintillation elements and high purity Ge wafers were tested in the EDELWEISS set-up at the Modane Underground Laboratory (France). Long term low temperature tests demonstrate excellent detectors’ performance and effectiveness of the purification and solidification procedures for the achievement of high radiopurity of the material, in particular with a bulk activity of 228Th and 226Ra below 4 µBq/kg. The adopted protocol was used to produce for the first time a large volume Zn100MoO4 crystal scintillator (mass of ∼1.4 kg, 100Mo enrichment is 99.5%) to search for neutrinoless double-beta decay of 100Mo in the framework of the LUMINEU project.
Type de document :
Communication dans un congrès
John L. Orrell. LOW RADIOACTIVITY TECHNIQUES 2015 (LRT 2015): Proceedings of the 5th International Workshop in Low Radioactivity Techniques, Mar 2015, Seattle, United States. AIP Conference Proceedings (ISSN : 0094-243X, ESSN : 1551-7616), 1672 (1), pp.040003, 2015, LOW RADIOACTIVITY TECHNIQUES 2015 (LRT 2015). 〈10.1063/1.4927985〉
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https://hal.archives-ouvertes.fr/hal-01891564
Contributeur : Marie-France Robbe <>
Soumis le : mardi 9 octobre 2018 - 17:01:58
Dernière modification le : mercredi 13 février 2019 - 10:06:06

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V. Poda, E. Armengaud, Q. Arnaud, C. Augier, S. Barabash, et al.. Radiopure ZnMoO4 scintillating bolometers for the LUMINEU double-beta experiment. John L. Orrell. LOW RADIOACTIVITY TECHNIQUES 2015 (LRT 2015): Proceedings of the 5th International Workshop in Low Radioactivity Techniques, Mar 2015, Seattle, United States. AIP Conference Proceedings (ISSN : 0094-243X, ESSN : 1551-7616), 1672 (1), pp.040003, 2015, LOW RADIOACTIVITY TECHNIQUES 2015 (LRT 2015). 〈10.1063/1.4927985〉. 〈hal-01891564〉

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