Component-resolved thermal stability and recuperation study of the LM-OSL curves of four sedimentary quartz samples

Thermal stability as well as recuperation stands among the crucial general characteristics of different OSL components in quartz. Through a series of thermal stability and recuperation experiments, in conjunction with curve fitting studies, a component resolved analysis is carried out, studying these two aspects for the OSL components identified in quartz samples collected from sites around Istanbul. A thermally unstable ultra-fast component is reported, which is almost totally removed by heating up to 250–280∘C. Most slow and medium components show a stability temperature region between 200 and 350∘C, whereas the thermal stability of the final slow component is limited up to almost 300∘C. No detectable recuperation occurs for the first five components reported. The greatest recuperation occurred in the sixth component, despite the fact that it was less than 1%.