Testing single aliquot regenerative dose (SAR) protocols for violet stimulated 
luminescence (advance online)

Colarossi, Debra; Chapot, Melissa S.; Duller, Geoff A. T.; Roberts, Helen M.

doi:10.1016/j.radmeas.2018.02.005

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Testing single aliquot regenerative dose (SAR) protocols for violet stimulated luminescence (advance online)

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Colarossi, Debra
Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Citation

Colarossi, D., Chapot, M. S., Duller, G. A. T., & Roberts, H. M. (2018). Testing single aliquot regenerative dose (SAR) protocols for violet stimulated luminescence (advance online). Radiation Measurements. doi:10.1016/j.radmeas.2018.02.005.

Cite as: https://hdl.handle.net/21.11116/0000-0000-B90D-2

Abstract

Basic assumptions of the single aliquot regenerative dose (SAR) protocol are tested using the violet stimulated luminescence (VSL) signal from quartz. The VSL signal is shown to be reduced to a sufficiently low background level between SAR steps, and the SAR protocol appears to adequately correct for sensitivity changes during measurement. The VSL SAR protocol can recover a large (405 Gy) laboratory beta dose within uncertainties, however the mean value for the dose recovery ratio is commonly 0.8 or less. This poor behaviour is echoed in the measurements of equivalent dose (De) for a sample with an expected De of ∼354 Gy, which underestimates De by 50–70%. Further investigations are required to understand the mechanisms underlying these underestimations in VSL SAR De values.