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 3 L. Berge 1 R. Boiko 5 T. Bergmann 6 J. Blumer 7 A. Broniatowski 1 V. Brudanin 8 P. Camus 9 A. Cazes 3 B. Censier 3 M. Chapellier 1 F. Charlieux 3 M. Chernyak 1 N. Coron 10 P. Coulter 11 G. Cox 6 A. Danevich 5 T. De Boissiere 2 R. Decourt 12 M. De Jesus 3 L. Devoyon 13 A. Drillien 1 L. Dumoulin 14 K. Eitel 15 C. Enss 16 D. Filosofov 8 A. Fleischmann 16 N. Fourches 2 J. Gascon 3 L. Gastaldo 16 G. Gerbier 2 A. Giuliani 14 M. Gros 2 L. Hehn 6 S. Henry 17 S. Hervé 2 G. Heuermann 6 V. Humbert 18 M. Ivanov 19 A. Juillard 3 C. Kefelian 3 M. Kleifges 6 H. Kluck 6 V. Kobychev 5 F. Koskas 13 V. Kozlov 6 H. Kraus 17 V. Kudryavtsev 20 H. Le Sueur 18 M. Loidl 21 P. Magnier 2 E. Makarov 19 M. Mancuso 18 P. De Marcillac 18 S. Marnieros 18 C. Marrache-Kikuchi 18 A. Menshikov 22 S. Nasonov 19 X-F. Navick 2 C. Nones 2 E. Olivieri 18 P. Pari 23 B. Paul 2 Y. Penichot 2 G. Pessina 24 M. Piro 18 O. Plantevin 18 T. Redon 10 M. Robinson 20 M. Rodrigues 21 S. Rozov 25 V. Sanglard 3 B. Schmidt 6 V. Shlegel 19 B. Siebenborn 6 O. Strazzer 13 D. Tcherniakhovski 6 M. Tenconi 14 L. Torres 10 V. Tretyak 5 L. Vagneron 3 V. Vasiliev 19 M. Velazquez 12 O. Viraphong 12 R. Walker 6 M. Weber 6 E. Yakushev 25 X. Zhang 18 V. Zhdankov 26
9 Cryo - Cryogénie
NEEL - Institut Néel
14 CSNSM PS1
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
21 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
23 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〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01891564
Contributeur : Marie-France Robbe <>
Soumis le : mardi 9 octobre 2018 - 17:01:58
Dernière modification le : mercredi 10 octobre 2018 - 17:22:06

Identifiants

Citation

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〉

Partager

Métriques

Consultations de la notice

76