Study of the TL response of LiF:Mg,Ti to 3 and 7.5 MeV helium ions: Measurements and interpretation in terms of the track interaction model

M. Rodríguez-Villafuerte, A. E. Buenfil, I. Gamboa-Debuen, C. Ruiz-Trejo, M. E. Brandan, D. Yossian, D. Satinger, Y. S. Horowitz

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

We have measured the LiF:Mg,Ti (TLD-100) thermoluminescent response, efficiency and supralinearity, to 3 and 7.5 MeV helium ions in the fluence interval between 6×107 to 1.5×1011 cm-2. Ion irradiations were performed using a flux of elastically scattered ions from a thin gold target. The measured efficiencies with respect to 60Co γ-rays are equal to 0.074 and 0.174 at 3 and 7.5 MeV, respectively, for the response of peak 5. The supralinearity functions for peaks 4, 5, 6a, 6b, 7, 8, 9 and the total TL signal indicate that supralinearity is an increasing function of energy and that it increases with peak temperature. The data for peaks 5, 8 and 9 have been successfully described by Monte Carlo simulations of the track interaction model. The fitted parameters show that peak 5 displays a special behaviour which requires the use of a much larger effective track radius than the higher temperature peaks.

Original languageEnglish
Pages (from-to)377-386
Number of pages10
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume160
Issue number3
DOIs
StatePublished - 1 Mar 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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