Optically stimulated luminescence dosimetry performance of natural Brazilian topaz exposed to beta radiation

R. Bernal*, D. N. Souza, M. E.G. Valerio, C. Cruz-Vázquez, M. Barboza-Flores

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Optically stimulated luminescence (OSL) has become the technique of choice in many areas of dosimetry. Natural materials like topaz are available in large quantities in Brazil and other countries. They have been studied to investigate the possibility of use its thermoluminescence (TL) properties for dosimetric applications. In this work, we investigate the possibility of utilising the OSL properties of natural Brazilian topaz in dosimetry. Bulk topaz samples were exposed to doses up to 100 Gy of beta radiation and the integrated OSL as a function of the dose showed linear behaviour. The fading occurs in the first 20 min after irradiation but it is <6% of the integrated OSL measured shortly after exposure. We conclude that natural colourless topaz is a very suitable phosphor for OSL dosimetry.

Original languageEnglish
Pages (from-to)161-163
Number of pages3
JournalRadiation Protection Dosimetry
Volume119
Issue number1-4
DOIs
StatePublished - 15 Sep 2006

Bibliographical note

Funding Information:
This work is supported by CONACyT (Mexico), under Grants J35222-E, 32069-E, and 37641-E, by SESIC-SEP (Mexico), Grant PROMEP-UNISON-PTC-01-01.

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