Investigation of the emission spectra of LiF:Mg,Ti (LTD-100) during thermoluminescence

S. Biderman, Y. Horowitz, L. Oster

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


The thermoluminescence (TL) of LiF:Mg,Ti has been studied using a high resolution CCD spectrophotometer, which simultaneously measures the emission intensity and the emission spectrum as a function of sample temperature. Computerised deconvolution was used to resolve the emission spectrum into individual Gaussian bands and the TL glow curve into glow peaks. Correction for spectral response and non-linear changes in dispersion were taken into account in the evaluation of the emission spectra. The emission spectra of all TL glow peaks following 200 Gy β irradiation were found to consist of a common set of five emission bands at 2.49 eV, 2.64 eV, 2.84 eV, 3.1 eV and 3.59 eV, of which the 2.95 eV and 3.59 eV bands have not been previously observed at these dose levels. The band characteristics (E, ΔE) are not sample temperature or dose dependent indicating that the same LCs or the same single centre with several excited states are common to all the glow peaks. The relative intensities of the emission bands do, however, change as a function of readout temperature and dose, a behaviour that could be connected to a temperature and dose dependent perturbation between spatially coupled TCs and LCs.

Original languageEnglish
Pages (from-to)369-372
Number of pages4
JournalRadiation Protection Dosimetry
Issue number1-4
StatePublished - 1 Jan 2002

ASJC Scopus subject areas

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


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