Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1888863 | Radiation Measurements | 2007 | 10 Pages |
Monte Carlo simulations of single aliquot regeneration (SAR) optically stimulated luminescence (OSL) dosimetry measurements of natural quartz are used to investigate the behaviour of the measured equivalent dose (DE)(DE) as a function of absorbed dose (palaeodose). The mean DEDE is shown to overestimate the palaeodose, particularly for larger luminescence measurement errors and larger palaeodoses. The median DEDE is shown to be a more accurate estimate of the palaeodose at moderate palaeodoses. Simulations show that exponential dose sequences yield similar accuracy and precision as linear dose sequences while reducing the total irradiation time. A minimal dose sequence is proposed and shown to require even less total irradiation per sample than exponential dose sequences, while maintaining accuracy (within 1%) and precision (standard deviation of 1–6%) for 24 aliquots measured with a reasonable luminescence measurement error of 2%. The results of this study demonstrate that significant savings in total irradiation time per sample are possible.