Variation of luminescence sensitivity, characteristic dose and trap parameters of quartz from rocks and sediments

We investigated the optically stimulated luminescence (OSL) and thermoluminescence (TL) characteristics of quartz from sediments parent rocks across South America. OSL TL sensitivities were compared with characteristic dose response curves. Additionally, we estimated electron trap parameters contrasting sensitivities. Our results show that natural (initial 0.8 s) (110 °C peak) are positively correlated range over six four orders magnitude respectively. The corresponding doses around 30 Gy–3000 Gy for curves described by a single exponential function. Quartz igneous metamorphic Andean short-transported report low-sensitivity high dose. studied initial signal has significant contribution medium slow components in sediments, while Brazilian long-transported is dominated fast component. trend sensitivity increase decrease attributed to relative low emission. Regarding parameters, high, statistically similar values activation energy frequency factor, but both have larger variations quartz.