Optical absorption and thermoluminescence studies in irradiated dosimetric Lif:Mg,ti (tld-100)

L. Oster, Y. S. Horowitz, N. Issa

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


The optical absorption (OA) and thermoluminescence (TL) of irradiated LiF:Mg,Ti was studied as a function of the temperature of post-irradiation annealing. The dose response of the OA bands and sensitisation effect were also investigated. The filling and emptying rate 'anti-correlation' and the behaviour with dose of the 5.6 eV and 3.25 eV and 4.0 eV bands lead us to propose that the 5.6 eV band trapping structure actively competes with the 3.25 eV and 4.0 eV bands (or TL peaks 2 and 5) trapping structures in both the excitation and recombination stages and may be the 'deep' competitor responsible for the supralinearity of these peaks. Preferential population of the 2.78 eV band at high ionisation density suggests that this band may arise from a 'two-hit' charge carrier trapping structure. The similarity between the thermal bleaching behaviour of the F band and the 2.78 eV band leads to the suggestion that the 2.78 eV band arises from an F2 centre.

Original languageEnglish
Pages (from-to)17-20
Number of pages4
JournalRadiation Protection Dosimetry
Issue number1-4
StatePublished - 1 Jan 1999

ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health


Dive into the research topics of 'Optical absorption and thermoluminescence studies in irradiated dosimetric Lif:Mg,ti (tld-100)'. Together they form a unique fingerprint.

Cite this