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Further study of CdWO4 crystal scintillators as detectors for high sensitivity double beta experiments: scintillation properties and pulse-shape discrimination

By L. Bardelli, M. Bini, P. G. Bizzeti, L. Carraresi, F. A. Danevich, T. F. Fazzini, B. V. Grinyov, N. V. Ivannikova, V. V. Kobychev, B. N. Kropivyansky, P. R. Maurenzig, L. L. Nagornaya, S. S. Nagorny, A. S. Nikolaiko, A. A. Pavlyuk, D. V. Poda, I. M. Solsky, M. V. Sopinskyy, Yu. G. Stenin, F. Taccetti, V. I. Tretyak, Ya. V. Vasiliev and S. S. Yurchenko

Abstract

Energy resolution, light yield, non-proportionality in the scintillation response, alpha/beta ratio, pulse shape for gamma rays and alpha particles were studied with CdWO4 crystal scintillators. Some indication for a difference in the emission spectra for gamma rays and alpha particles was observed. No dependence of CdWO4 pulse shape on emission spectrum wavelengths under laser, alpha particles and gamma ray excitation was observed. Dependence of scintillation pulse shape for gamma quanta and alpha particles and pulse-shape discrimination ability on temperature was measured in the range of 0-24 degrees.Comment: 22 pages, 14 figures, submitted to NIM

Topics: Nuclear Experiment
Publisher: 'Elsevier BV'
Year: 2006
DOI identifier: 10.1016/j.nima.2006.09.094
OAI identifier: oai:arXiv.org:nucl-ex/0608004

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