Articles | Volume 4, issue 2
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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Cited articles

Aitken, M. J.: Thermoluminescence dating, Academic Press, ISBN-13: 978-0120463817, 1985. 
Aitken, M. J. and Xie, J.: Moisture correction for annual gamma dose, Ancient-TL, 8, 6–9, 1990. 
Bell, W. T.: Attenuation Factors for the Absorbed Radiation Dose in Quartz Inclusions for Thermoluminescence Dating, Ancient-TL, 2–13, 1979. 
Brennan, B. J.: Beta doses to spherical grains, Radiat. Meas., 37, 299–303,, 2003. 
Carvalho, F., Chambers, D., Fernandes, S., Fesenko, S., Goulet, R., Howard, B., Kim, C. K., Martin, P., Moore, W. S., and Phaneuf, M.: The environmental behaviour of radium: revised edition, International Atomic Energy Agency,ISBN-13: 978-9201433107, 2014. 
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.