Residual Hole Concentration in Recombination Centres after Bleaching

Abstract Trapped charge dating method using electron spin resonance (ESR) of quartz is progressively used for sediment dating. ESR signals can be accurate age estimation only when these are zeroed by sunlight exposure before the layer creation or one knows their residual level (the part signal that not bleached). It well known related to Al-hole centres in has a significant signal. From point view luminescence models, as hole trap, centre considered recombination quartz. Recently, it was demonstrated experimentally dependent on total dose absorbed sample past. The same effect confirmed simulations transport processes model including two centres. Here, dependence concentration (RHC) past studied detail computer wide range parameters. impact various relations parameters have function investigated and implications practice discussed.