Thermoluminescence Dating of Permafrost: New Approaches, Methods, and Instruments

摘要

Using the more strict thermal parameters of timer minerals instead of their absolute optical characteristics allows simplifying greatly the design of the new TL dating tool and reducing the instrumental error, as it requires neither the radiating calibration procedure of the optic channel nor sample weight control. In the optic channel, it is enough to measure relative luminescence to highlight the basic elementary TL peak in the dose curve. The measurements in the temperature channel, however, have to be highly precise. The high precision is possible due to special calibration of the heating system and to a tight contact of the thermocouple junction with the analyzed quartz grains. The advanced tool has a more compact design than its previous counterparts and can be a handy portable device for field work. The study was supported by grant SS-5582.2012.5 from the President of the Russian Federation.