Abstract
This work describes the construction of a simple thermoluminescence (TL) and optically stimulated luminescence (OSL) reader using commercial components such as temperature and power controllers for thermal stimulation, as well as green laser diodes (532 nm) for optical stimulation. To evaluate the performance of the equipment, TL measurements were carried out on the built equipment and Risø TL/OSL reader using Al2O3:C chip dosimeters. Both measurements showed the same glow curve with two TL peaks, one with low intensity at 85 °C and the other with high intensity at 220 °C. OSL measurements in Al2O3:C chips showed a well-behaved exponential decay signal and linear behavior of OSL intensity for doses between 2 and 10 mGy with a rough calculation of minimum detection dose of ∼2 µGy.
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