Glow curve analysis applied to the discrimination of X-ray versus proton irradiation

M. Skopec, J. L. Price, N. Guardala, M. Loew, M. Moscovitch, Y. S. Horowitz, L. Oster

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Three types of thermoluminescence dosemeters (TLDs): LiF:Mg,Ti (TLD- 100), CaF2,:Tm (TLD-300), and α- Al2,O3,:C (TLD-500). were investigated for their glow curve response to separate X ray and proton irradiations. The glow curve structure for each individual TLD's exposure to the X ray and proton irradiations was analysed and compared. Distinguishable differences between the glow curve structure characteristic of each type of radiation were observed. The proton TLD-100 glow curve has revealed a complex high-temperature peak structure that was used for the proton/X ray discrimination algorithm. Proton irradiation of TLD-300 resulted in an apparent switch in the relative heights of peaks 3 and 5 as compared to X ray. In TLD-500, proton irradiation produced a more subtle difference in the glow curve with an increase in the ratio between high- and low-temperature peaks. Results demonstrate promising differences in glow curve structure present allowing for discrinfination between X ray and proton radiation field expsoures.

Original languageEnglish
Pages (from-to)99-102
Number of pages4
JournalRadiation Protection Dosimetry
Volume101
Issue number1-4
DOIs
StatePublished - 1 Jan 2002

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