Speaker
Description
Luminescence dating accuracy relies on the precise determination of the total dose rate (Dr). While alpha and beta radiation effects are highly localized, gamma radiation forms a complex, continuous field influenced by the heterogeneous distribution of radionuclides throughout a sediment profile. Standard dosimetry often overlooks these spatial fluctuations, potentially leading to age inaccuracies in stratified deposits.
In this study, we present a spatial modelling approach to map the gamma radiation field within an aeolian sediment profile located near Toruń, Poland. In this early-stage work we propose a model that illustrates how different-activity layers influence more distant sampling points, by accounting for the discrete distribution of natural decay chain radionuclides across the profile, our model.