arXiv 1005.36862010-05-20cond-mat.mtrl-scinucl-exphysics.ins-det

用于无中微子双β衰变研究的高纯度TeO2单晶的制备

Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay

C. Arnaboldi, C. Brofferio, A. Bryant, C. Bucci, L. Canonica, S. Capelli, M. Carrettoni, M. Clemenza, I. Dafinei, S. Di Domizio, F. Ferroni, E. Fiorini, Z. Ge, … 展开作者

C. Arnaboldi, C. Brofferio, A. Bryant, C. Bucci, L. Canonica, S. Capelli, M. Carrettoni, M. Clemenza, I. Dafinei, S. Di Domizio, F. Ferroni, E. Fiorini, Z. Ge, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, E. Guardincerri, R. Kadel, K. Kazkaz, L. Kogler, Y. Kolomensky, J. Larsen, M. Laubenstein, Y. Li, C. Maiano, M. Martinez, R. Maruyama, S. Nisi, C. Nones, Eric B. Norman, A. Nucciotti, F. Orio, L. Pattavina, M. Pavan, G. Pessina, S. Pirro, E. Previtali, C. Rusconi, Nicholas D. Scielzo, M. Sisti, Alan R. Smith, W. Tian, M. Vignati, H. Wang, Y. Zhu

备注：: 11 pages, 5 figures, 3 tables
DOI：: 10.1016/j.jcrysgro.2010.06.034

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摘要：

制备了高纯TeO_2晶体，用于寻找~（130）Te的无中微子双β衰变。根据稀有事件物理实验特定的放射性纯度限制，建造了原料合成、晶体生长和表面处理的专用生产线。本文报道了TeO_2晶体生产中原料、反应物、消耗品、辅料和中间产品中放射性同位素浓度的高灵敏度测量。生产和认证协议，并得到的准备使用的TeO 2晶体进行了说明。

英文摘要：

High purity TeO2 crystals are produced to be used for the search for the neutrinoless double beta decay of 130Te. Dedicated production lines for raw material synthesis, crystal growth and surface processing were built compliant with radio-purity constraints specific to rare event physics experiments. High sensitivity measurements of radio-isotope concentrations in raw materials, reactants, consumables, ancillaries and intermediary products used for TeO2 crystals production are reported. Production and certification protocols are presented and resulting ready-to-use TeO2 crystals are described.

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