Purification of molybdenum oxide, growth and characterization of medium size zinc molybdate crystals for the LUMINEU program

V.N. Shlegel; L. Berge; R.S. Boiko; M. Chapellier; D.M. Chernyak; N. Coron; F.A. Danevich; R. Decourt; V.Ya. Degoda; L. Devoyon; A. Drillien; L. Dumoulin; C. Enss; A. Fleischmann; L. Gastaldo; A. Giuliani; M. Gros; S. Herve; I.M. Ivanov; V.V. Kobychev; Ya.P. Kogut; F. Koskas; M. Loidl; P. Magnier; E.P. Makarov; M. Mancuso; P. de Marcillac; S. Marnieros; C. Marrache-Kikuchi; S.G. Nasonov; X.F. Navick; C. Nones; E. Olivieri; B. Paul; Y. Penichot; G. Pessina; O. Plantevin; D.V. Poda; T. Redon; M. Rodrigues; O. Strazzer; M. Tenconi; L. Torres; V.I. Tretyak; Ya.V. Vasiliev; M. Velazquez; O. Viraphong; V.N. Zhdankov

doi:10.1051/epjconf/20136503001

All issues

Volume 65 (2014)

EPJ Web of Conferences, 65 (2014) 03001

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 65, 2014 RPSCINT 2013 – International Workshop on Radiopure Scintillators


Article Number		03001
Number of page(s)		6
Section		Scintillator Development
DOI		https://doi.org/10.1051/epjconf/20136503001
Published online		10 January 2014

EPJ Web of Conferences 65, 03001 (2014)
https://doi.org/10.1051/epjconf/20136503001

Purification of molybdenum oxide, growth and characterization of medium size zinc molybdate crystals for the LUMINEU program

V.N. Shlegel¹^a, L. Berge², R.S. Boiko³, M. Chapellier², D.M. Chernyak²^,3, N. Coron⁴, F.A. Danevich³, R. Decourt⁵, V.Ya. Degoda⁶, L. Devoyon⁷, A. Drillien², L. Dumoulin², C. Enss⁸, A. Fleischmann⁸, L. Gastaldo⁸, A. Giuliani², M. Gros⁷, S. Herve⁷, I.M. Ivanov¹, V.V. Kobychev³, Ya.P. Kogut⁶, F. Koskas⁷, M. Loidl⁷, P. Magnier⁷, E.P. Makarov¹, M. Mancuso²^,9, P. de Marcillac⁴, S. Marnieros², C. Marrache-Kikuchi², S.G. Nasonov¹, X.F. Navick⁷, C. Nones⁷, E. Olivieri², B. Paul⁷, Y. Penichot⁷, G. Pessina¹⁰, O. Plantevin², D.V. Poda²^,3, T. Redon⁴, M. Rodrigues⁷, O. Strazzer⁷, M. Tenconi², L. Torres⁴, V.I. Tretyak³, Ya.V. Vasiliev¹, M. Velazquez⁵, O. Viraphong⁵ and V.N. Zhdankov¹¹

¹ Nikolaev Institute of Inorganic Chemistry, 630090 Novosibirsk, Russia
² Centre de Sciences Nucléaires et de Sciences de la Matière, 91405 Orsay, France
³ Institute for Nuclear Research, MSP 03680 Kyiv, Ukraine
⁴ IAS, Bâtiment 121, UMR 8617 Université Paris-Sud 11/CNRS, 91405 Orsay, France
⁵ CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France
⁶ Kyiv National Taras Shevchenko University, MSP 03680 Kyiv, Ukraine
⁷ CEA-Saclay, F-91191 Gif sur Yvette, France
⁸ Institut für Angewandte Physik, Universität Heidelberg, Albert-Ueberle-Strasse 3-5, D-69120 Heidelberg, Germany
⁹ Dipartimento di Scienza e Alta Tecnologia dell’Università dell’Insubria, I-22100 Como, Italy
¹⁰ Dipartimento di Fisica dell’Università di Milano-Bicocca e Sezione di Milano Bicocca dell’INFN, Italy
¹¹ CML Ltd., 630090 Novosibirsk, Russia

^a e-mail: shlegel@niic.nsc.ru

Published online: 10 January 2014

Abstract

The LUMINEU program aims at performing a pilot experiment on neutrinoless double beta decay of ¹⁰⁰Mo using radiopure ZnMoO₄ crystals operated as scintillating bolometers. Growth of high quality radiopure crystals is a complex task, since there are no commercially available molybdenum compounds with the required levels of purity and radioactive contamination. This paper discusses approaches to purify molybdenum and synthesize compound for high quality radiopure ZnMoO₄ crystal growth. A combination of a double sublimation (with addition of zinc molybdate) with subsequent recrystallization in aqueous solutions (using zinc molybdate as a collector) was used. Zinc molybdate crystals up to 1.5 kg were grown by the low-thermal-gradient Czochralski technique, their optical, luminescent, diamagnetic, thermal and bolometric properties were tested.

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