Articles | Volume 4, issue 2
https://doi.org/10.5194/gchron-4-517-2022
https://doi.org/10.5194/gchron-4-517-2022
Research article
 | 
15 Aug 2022
Research article |  | 15 Aug 2022

Attenuation of beta radiation in granular matrices: implications for trapped-charge dating

Alastair C. Cunningham, Jan-Pieter Buylaert, and Andrew S. Murray

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Latest update: 05 Dec 2023
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Short summary
Mineral grains within sediment or rock absorb a radiation dose from the decay of radionuclides in the host matrix. For the beta dose component, the estimated dose rate must be adjusted for the attenuation of beta particles within the mineral grains. We show here that the mean dose rate to dosimeter grains in a granular matrix is dependent on the grain-size distributions of the source grains, the bulk sediment, and the grain size of the dosimeters.