<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Difficulties in evaluating accurate equivalent doses for Late Quaternary sediments from the south coasts of Greece arose in the course of SAR measurements. Large scatter among apparent equivalent doses perplexed the evaluation of accurate mean estimates in circumstances where very large doses were involved. Besides, dose recovery experiments revealed that when intersection of the natural signal occurs onto the saturating segment of the growth curve, a distinct relationship between De and growth curve shape occurs. At very low slope angles, SAR tends to overestimate the recovered dose. The mechanism which controls the spread in equivalent dose estimation is investigated.</p></abstract>

Difficulties in evaluating accurate equivalent doses for Late Quaternary sediments from the south coasts of Greece arose in the course of SAR measurements. Large scatter among apparent equivalent doses perplexed the evaluation of accurate mean estimates in circumstances where very large doses were involved. Besides, dose recovery experiments revealed that when intersection of the natural signal occurs onto the saturating segment of the growth curve, a distinct relationship between De and growth curve shape occurs. At very low slope angles, SAR tends to overestimate the recovered dose. The mechanism which controls the spread in equivalent dose estimation is investigated.

Constraints on the precision of SAR in equivalent dose estimations close to saturation in quartz

Laboratory of Archaeometry, Institute of Materials Science, N.C.S.R. ‘Demokritos’, Aghia Paraskevi, 153 10, Athens, Greece

Geochronometria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Difficulties in evaluating accurate equivalent doses for Late Quaternary sediments from the south coasts of Greece arose in the course of SAR measurements....

Constraints on the precision of SAR in equivalent dose estimations close to saturation in quartz

Publié en ligne: 22 sept. 2011

Pages: 413 - 423

DOI: https://doi.org/10.2478/s13386-011-0046-1

Mots clés
SAR precision, equivalent dose distributions, scatter, dose recovery, slope

© 2011 Silesian University of Technology, Gliwice, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Constraints on the precision of SAR in equivalent dose estimations close to saturation in quartz

Publié en ligne: 22 sept. 2011

Pages: 413 - 423

DOI: https://doi.org/10.2478/s13386-011-0046-1

Mots clésSAR precision, equivalent dose distributions, scatter, dose recovery, slope

© 2011 Silesian University of Technology, Gliwice, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
SAR precision, equivalent dose distributions, scatter, dose recovery, slope