Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay
Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay
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DOI：
10.1016/j.jcrysgro.2010.06.034
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发表时间：
2010-10-01
影响因子：
1.8
通讯作者：
Zhu, Y.
中科院分区：
文献类型：
--
作者：
Arnaboldi, C.;Brofferio, C.;Zhu, Y.
高纯TeO2晶体被用来研究Te-130的无中微子双β衰变。为原料合成、晶体生长和表面处理建立了专门的生产线，符合稀有事件物理实验特有的放射性纯度限制。报道了用于TeO2晶体生产的原料、反应物、耗材、辅料和中间产品中放射性同位素浓度的高灵敏度测量。说明了晶体的完好性，以及如何在大规模生产过程中实现和维护它。介绍了生产和认证协议，并描述了得到的即用TeO2晶体。(C)2010 B.V.Elsevier by.版权所有。
High purity TeO2 crystals are produced to be used for the search for the neutrinoless double beta decay of Te-130. 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. Indications are given on the crystals perfection and how it is achieved and maintained in a large scale production process. Production and certification protocols are presented and resulting ready-to-use TeO2 crystals are described. (C) 2010 B.V. Elsevier By. All rights reserved.