Effect of Eu and Pb doping on the dosimetric properties of LiCAF

M. Fasoli, A. Vedda, F. Moretti, A. C. Chenus, I. Veronese, M. C. Cantone, M. Nikl, A. Yoshikawa, A. Novoselov

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

LiCaAlF6 (LiCAF) crystals doped with two different ions (europium and lead) have been investigated as potential new dosimetric materials. The stability of thermally stimulated luminescence (TSL) glow peaks in LiCAF:Eu was evaluated by means of the initial rise technique. The decay times at room temperature of the traps related to the dosimetric glow peaks were found to range between 40 and 2 × 104 years confirming the good dosimetric characteristics of this crystal. The glow curve of LiCAF:Pb is dominated by a peak at approximately 300 °C emitting in the UV region ( 3P0,1-1S0 transition of Pb 2+) superimposed to a very broad structure at lower temperature (20-200 °C) featuring recombination at an intrinsic defect centre. The anomalous behavior of the low temperature structure during thermal cleaning procedures prevented any reliable numerical analysis of the TSL glow peak at 300 °C.

Original languageEnglish
Pages (from-to)556-558
Number of pages3
JournalRadiation Measurements
Volume45
Issue number3-6
DOIs
Publication statusPublished - 2010 Mar 1

Keywords

  • Dosimetry
  • LiCAF:Eu
  • LiCAF:Pb

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

Fingerprint Dive into the research topics of 'Effect of Eu and Pb doping on the dosimetric properties of LiCAF'. Together they form a unique fingerprint.

Cite this