Development of enriched 106CdWO4 crystal scintillators to search for double β decay processes in 106Cd

Autor: O.S. Kolesnyk, D. M. Chernyak, V.M. Kudovbenko, V.Ya. Degoda, V.B. Brudanin, R.B. Podviyanuk, V.N. Shlegel, G. P. Kovtun, D. Prosperi, S. d'Angelo, R. Cerulli, Yu. G. Stenin, D.V. Poda, N. Bukilic, A. Incicchitti, A. P. Shcherban, R. Bernabei, A.L. Mikhlin, V.P. Shcherbatskyi, P. Belli, V. I. Tretyak, A.E. Dossovitskiy, F.A. Danevich, Ya.V. Vasiliev, O. G. Polischuk, E.N. Galashov, S.S. Nagorny, S.V. Ildyakov, Yu.A. Hyzhnyi, A. S. Nikolaiko, Stefano Nisi, V.D. Virich, V.V. Kobychev, J.R. De Laeter, S.G. Nedilko, D. A. Solopikhin, R. S. Boiko
Rok vydání: 2010
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 615:301-306
ISSN: 0168-9002
DOI: 10.1016/j.nima.2010.01.081
Popis: A cadmium tungstate crystal scintillator enriched in 106 Cd was developed for an experiment to search for double beta processes in 106 Cd. With this aim samples of cadmium with natural isotopic composition and enriched in 106 Cd were purified by vacuum distillation. Cadmium tungstate compounds were synthesized from solutions. The absolute isotopic composition of the enriched cadmium was accurately determined as 66.4% by thermal ionisation mass-spectrometry. A 106 CdWO 4 crystal boule was grown by the low-thermal-gradient Czochralski technique. The total irrecoverable loss of the enriched cadmium in all the stages of the crystal scintillator production does not exceed 2.3%. The produced 106 CdWO 4 crystal scintillator with mass of 216 g exhibits good optical and scintillation properties.
Databáze: OpenAIRE