Low temperature photoluminescence of pure and doped paratellurite (TeO2) crystals

✍ Scribed by Dafinei, Ioan ;Dujardin, Christophe ;Longo, Egidio ;Vignati, Marco

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 207 KB
• Volume: 204
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200622458

✦ Synopsis

Abstract

Photoluminescence measurements aimed at defining the precise nature of scintillation reported in paratellurite (TeO~2~) crystals [Coron et al., Nucl. Instrum. Methods Phys. Res. A 520, 159 (2004)] are presented. Measurement results are discussed for TeO~2~ crystal samples (pure and Mg, Mn, Nb, Zr doped) studied for their photoluminescence properties in the 30–300 K temperature range and the nature of scintillation peaks reported on these samples is explained. Conclusions are drawn concerning the possibility to improve the scintillation yield of TeO~2~ crystals to be used as cryogenic bolometers operated at 10 mK in experiments studying the ββ decays of ^130^Te. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)