<abstract xmlns="http://www.w3.org/1999/xhtml">

This work considers the impact of the internal alpha and beta dose rates in quartz grains obtained from sandy sediments on the results of luminescence dating. The internal dose rates reported here (ca. 0.01–0.21 Gy · ka−1) play a particularly important role, because of low (ca. 0.8–0.9 Gy · ka−1) or very low (ca. 0.4–0.6 Gy · ka−1) external dose rates. In these cases, the internal dose rates form a significant fraction of the total dose rates, often exceeding 10%. Ignoring this contribution would have made the considered luminescence ages artificially older. In our study, we measure both the internal alpha and beta contributions as the latter is usually neglected in the case of quartz. The dose rate measurements were performed using the innovative μDose system.
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This work considers the impact of the internal alpha and beta dose rates in quartz grains obtained from sandy sediments on the results of luminescence dating. The internal dose rates reported here (ca. 0.01–0.21 Gy · ka−1) play a particularly important role, because of low (ca. 0.8–0.9 Gy · ka−1) or very low (ca. 0.4–0.6 Gy · ka−1) external dose rates. In these cases, the internal dose rates form a significant fraction of the total dose rates, often exceeding 10%. Ignoring this contribution would have made the considered luminescence ages artificially older. In our study, we measure both the internal alpha and beta contributions as the latter is usually neglected in the case of quartz. The dose rate measurements were performed using the innovative μDose system.

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

Institute of Physics – Centre for Science and Education

Geochronometria

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

This work considers the impact of the internal alpha and beta dose rates in quartz grains obtained from sandy sediments on the results of luminescence dating....

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

Publié en ligne: 10 déc. 2022

Pages: 9 - 17

Reçu: 11 mars 2021

Accepté: 17 juin 2022

DOI: https://doi.org/10.2478/geochr-2022-0002

Mots clés
luminescence dating, internal dose rate, dose rate, quartz

© 2022 Agnieszka Szymak et al., published by Sciendo

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

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

Publié en ligne: 10 déc. 2022

Pages: 9 - 17

Reçu: 11 mars 2021

Accepté: 17 juin 2022

DOI: https://doi.org/10.2478/geochr-2022-0002

Mots clésluminescence dating, internal dose rate, dose rate, quartz

© 2022 Agnieszka Szymak et al., published by Sciendo

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

Mots clés
luminescence dating, internal dose rate, dose rate, quartz