61-67

• Subedi, B.
• Afouxenidis, D.
• Polymeris, G., S.
• Τσιρλιγκάνης, Νέστωρ
• Paraskevopoulos, K.M.
• Kitis, George

Turquoise is one of the amongst first gem stones used in jewelry and possessing cultural value since 2000 BC (at least). This work attempts haracterize this stone scientifically using both thermally (TL) and optically stimulated luminescence (OSL) techniques. The experimental investigation included 1) the study of the natural TL and OSL signals, 2) the reproducibility of TL sensitivity overrepeated irradiation and TL readout cycles, 3) dependence of sensitivity on annealing temperatures and 4) the TL and OSL dose response curves. The potential use of the TL and OSL techniques in determinationof provenance, accidental dosimetry and probably to authenticity and dating purposes are then discussed.

• History and Archaeology

• Αρχαιολογία

Turquoise gemstone, TL and OSL, Luminescence, Dose response, Accidental dosimeter, Authenticity and dating

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