Cooling rate effects in the thermal and optical excitation of LiF:Mg,Ti

L. Oster, S. Druzhyna, Y. S. Horowitz

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The effects of cooling rate following the 400 °C pre-irradiation anneal on the structure of the TL glow-curve of LiF:Mg,Ti and the optical conversion of peak 5a→4 following beta irradiation are investigated in both "slow-cooled" and "naturally-cooled" samples. Computerised glow curve deconvolution is employed with constrained "peak-shape" parameters deduced from anciliary studies using 4 eV and 5 eV optical excitation. It is demonstrated that "slow-cooling" using linear cooling rates of 100 °C/h and 30 °C/h increases the intensity of glow peak 5a and decreases the intensity of peaks 4 and 5 relative to the normal/rapid cooling rates. Serendipitously, the conversion efficiency of peak 5a→4 at a cooling rate of 100 °C/h is found to be ∼ unity indicative of an approximate one-to-one correspondence between the peak 5a and peak 4 configurations.

Original languageEnglish
Pages (from-to)1406-1409
Number of pages4
JournalRadiation Measurements
Issue number12
StatePublished - 1 Dec 2011


  • Conversion Efficiency
  • Cooling Rate
  • LiF:Mg,Ti
  • Thermoliminescence

ASJC Scopus subject areas

  • Radiation
  • Instrumentation


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