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Luminescence and OSL study of the inorganic compounds Tl+-doped (NH4)2BeF4and (NH4)2SiF6

Authors
Journal
Radiation Measurements
1350-4487
Publisher
Elsevier
Publication Date
Volume
38
Identifiers
DOI: 10.1016/j.radmeas.2003.12.012
Keywords
  • (Nh4)2Sif6
  • Thallium Luminescence
  • Osl

Abstract

Abstract The search of materials with efficient optically stimulated luminescence (OSL) properties and a high hydrogen content for fast neutron dosimetry has led to the development of Tl +-doped ammonium salts (NH 4) 2SiF 6 and (NH 4) 2BeF 4. Preliminary OSL studies have shown that the OSL in (NH 4) 2SiF 6:Tl + and (NH 4) 2BeF 4:Tl +is efficient. In order to optimise the OSL emission and its detection, the identification of the luminescent centres in the OSL process is necessary. This study focuses on the identification of the luminescent centres associated with Tl + based on optical studies in the vacuum UV (VUV) at different temperatures.

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