Absorbed dose evaluation in feldspar using a single-aliquot regenerative-dose (SAR) infrared-stimulated red luminescence protocol

摘要

The potential of the IR (833 +/- 5 nm) stimulated red emission (lambda(emission) = 600-750 nm) luminescence (red IRSL) from potassium feldspar, as a dosimeter is discussed. A series of experiments are presented to examine the performance of single-aliquot regenerative dose (SAR) protocol for equivalent dose determination using red IRSL signal. Outlines of the SAR protocols are presented, and tests of their performance are discussed. It is shown that, for the samples under study, SAR can successfully and accurately recover a known laboratory dose in red IRSL from potassium feldspar separates. It has additionally been demonstrated that reconstruction of a laboratory dose is easily achieved using a SAR protocol. Equivalent doses (DeS) for natural samples examined give results that are consistent with the far-red emission circumventing the effects of anomalous fading. (C) 2003 Elsevier Ltd. All rights reserved. [References: 17]