Resumo

CORRECHER, V.; GOMEZ-ROS, J.M.; DELGADO, A.  e  GARCIA-GUINEA, J.. Reconstrucción de dosis a partir del efecto pre-dosis del cuarzo: procedimiento combinado de dosis aditiva y activación múltiple. Rev. mex. fis. [online]. 2009, vol.55, n.5, pp.354-358. ISSN 0035-001X.

The pre-dose effect of the 110° C thermoluminescence (TL) peak of quartz gives rise to the use of a sensitive technique to estimate of low-level doses under retrospective conditions. However, one can appreciate how aliquots of quartz, from the same mineral fraction, display different sensitivities. In this sense, we herein report on a new measurement protocol based on the aforementioned pre-dose effect. Such procedure includes additive dose (DA) and multiple activation (MA) steps and allows us to determine simultaneously (i) the sensitivity changes induced by the thermal activation and (ii) the TL dose dependence. This behaviour let us calculate the field accrued dose by interpolation thus permitting an increase of both precision and accuracy.

Palavras-chave : Thermoluminescence; quartz; pre-dose effect; additive dose; multiple activation.

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