Search for ionisation density effects in the radiation absorption stage in LiF:Mg,Ti

I. Nail, Yigal S. Horowitz, L. Oster, M. E. Brandan, M. Rodríguez-Villafuerte, A. E. Buenfil, C. Ruiz-Trejo, I. Gamboa-deBuen, O. Ávila, V. M. Tovar, P. Olko, N. Ipe

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Optical absorption (OA) dose-response of LiF:Mg,Ti (TLD-100) is studied as a function of electron energy (ionisation density) and irradiation dose. Contrary to the situation in thermoluminescence dose-response where the supralinearity is strongly energy-dependent, no dependence of the OA dose filling constants on energy is observed. This result is interpreted as indicating a lack of competitive process in the radiation absorption stage. The lack of an energy dependence of the dose filling constant also suggests that the charge carrier migration distances are sufficiently large to smear out the differences in the non-uniform distribution of ionisation events created by the impinging gamma/ electron radiation of various energies.

Original languageEnglish
Pages (from-to)180-183
Number of pages4
JournalRadiation Protection Dosimetry
Volume119
Issue number1-4
DOIs
StatePublished - 15 Sep 2006

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