Turkish Journal of Nuclear Sciences 2791-7185 T.C. Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu AN INTERNATIONAL COMPARISON STUDY ON OSL DATING https://orcid.org/0000-0002-3301-2863 Yüce Ülkü Rabia TÜRKİYE ATOM ENERJİSİ KURUMU BAŞKANLIĞI 12 31 2019 31 2 60 66 04 02 2019 12 26 2019 Copyright © 1981, Turkish Journal of Nuclear Sciences 1981 Turkish Journal of Nuclear Sciences

To compare our experiment results with other laboratories byparticipating in international inter-laboratory comparison tests is animportant need to ensure the accuracy of our measurements. However, so far,international comparison tests or measurements on OSL dating are unfortunatelyorganized very limited in number. The latest inter-laboratory comparison studywas conducted between 2006 and 2012 years by the Nordic Luminescence Laboratoryin Denmark. In this paper, within the scope of the aforementioned comparisonstudy, the result of Optical Stimulated Luminescence (OSL) dating of inter-comparison sample based on quartz-rich aeolian and/or coastal marine sandsample was presented. Equivalent dose (De) of the samplewas determined using Single Aliquot Regenerative Dose (SAR) protocol. For the calculation of annual dose rate (Da),concentrations of radioactive isotopes (U, Th, K) were measured by using ahigh-purity germanium detector. OSL age was determined as 4530 ± 41 years forthe sample. Consequently, within the errorlimits, we have determined the age of the sample close to the expected age. Byparticipating in this comparison test, we have had the opportunity to compare ourresults with other luminescence dating laboratories and to ensure the accuracyof our results. At the same time, we hadthe chance to interpret each step of our dating measurements (preparation ofpure quartz minerals, determination of equivalent dose and annual dose etc.) onan international scale, separately.

 OSL dating interlaboratory comparison equivalent dose quartz sar Aitken, M.J. (1985). Thermoluminescence Dating. Academic Press, London. https://doi.org/10.1016/0033-5894(86)90112-2 Aitken, M.J. (1998). An Introduction to Optical Dating. Oxford University Press, Oxford. Bøtter-Jensen, L., McKeever, S.W.S. and Wintle, A.G. (2003). Optically stimulated luminescence dosimetry. Elsevier Science B.V., 355 p., Netherlands. Guerin, G., Jain, M., Thomsen, K. J., Murray, A. S., Mercier N. (2015). Modelling dose rate to single grains of quartz in well-sorted sand samples: The dispersion arising from the presence of potassium feldspars and implications for single grain OSL dating. Quaternary Geochronology, 27, 52-65. G. Guérin, N. Mercier, G. Adamiec. (2011). Dose-rate conversion factors: update. Ancient TL. 29, pp. 5-8. Huntley, D.J., Godfrey-Smith, D.I., Thewalt, M.L.W. (1985). Optically dating of sediments. Nature, 313, 105-107 Huntley, D.J., Hutton, J.T. and Prescott, J.R. (1993). Optical dating using inclusions within quartz grains. Geology, 21 (12), 1087-1090. https://doi.org/10.1130/0091-7613(1993)021<1087:ODUIWQ>2.3.CO;2 Huntley, D. J. and M. Lamothe. (2001). Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating. Canadian Journal of Earth Sciences. 38(7): 1093-1106. https://doi.org/10.1139/e01-013 Madsen A.T., Murray A.S., Andersen T.J. (2007). Optical dating of Dune Ridges on Romo, A Barrier Island in Wadden Sea, Denmark. Journal of Coastal Research. 23 (5) 1259-1269. DOI: 10.2112/05-0471.1 Madsen A.T and Murray A.S. (2008). Optically stimulated luminescence dating of young sediments: A review Geomorphology. 109, 23-16. https://doi.org/10.1016/j.geomorph.2008.08.020 Murray, A.S., Wintle, A.G. (2000). Luminescence dating of quartz using an improved single-aliquot regenerative-dose protocol. Radiation Measurements. 32, 57. https://doi.org/10.1016/S1350-4487(99)00253-X Murray, A.S., Funder, S. (2003). Optically Stimulated Luminescence dating of a Danish Eemian coastal marine deposit: a test of accuracy. Quaternary Science Reviews 22, 1177-1183. doi: 10.1016/S0277-3791(03)00048-9 Mejdahl, V. (1979). Thermoluminescence Dating: dose attenuation in quartz grains. Archaometry. 21, 61-72. https://doi.org/10.1111/j.1475-4754.1979.tb00241.xMurray, A.S., Buylaert, J., Thiel C. (2015). A luminescence dating intercomparison based on a Danish beach-ridge sand. Radiation Measurements. 81, 32-38 https://doi.org/10.1016/j.radmeas.2015.02.012 Prescott, J.R., Hutton, J.T. (1994). Cosmic ray contributions to dose-rates for luminescence and ESR dating: large depths and long-term time variations. Radiation Measurements. 23(2/3), 497-500. https://doi.org/10.1016/1350-4487(94)90086-8 McKeever S.W.S. (2001). Optically stimulated luminescence dosimetry Nucl. Instrum. Methods Phys. Res. B, 184 (1–2), pp. 29-54 https://doi.org/10.1016/S0168-583X(01)00588-2 Vandenberghe, D. 2004. Investıgatıon of the optically stimulated luminescence dating method for application to young geologıcal sediments. Phd. Thesis. Universiteit Gent, 298s. Holland. Wintle, A.G., Murray, A.S., 2006. A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols. Radiat. Meas., 41, 369. https://doi.org/10.1016/j.radmeas.2005.11.001