Dose recovery performance in double IRSL/pIRIR SAR protocols

Luminescence dating at Border Cave: attempts, questions, and new results

“…First, the preheat temperatures have been adjusted in order to obtain dose recovery ratios consistent with unity: aliquots of sample BDC4 were bleached for about 1.25 hour in a solar simulator (Höhnle UVACube 400). Then they were given a dose of about 417 Gy and the post-IR50 IR225 protocol was applied (as in Figure 6, without any annealing time), using only one regenerative dose identical to the first dose, following Lamothe et al (2018). The preheat temperature was increased from 190°C for 60 s to 310°C for 60 s. The residual dose was estimated for a single preheat of 250°C for 60 s, but applied to correct all data.…”