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Peculiarities of optically stimulated luminescence in halite
Institution:1. Jan Dlugosz University, Institute of Physics, Ul. Armii Krajowej 13/15, 42-200 Częstochowa, Poland;2. Universite du Maine, Avenue O. Messiaen, 72087 Le Mans, Cedex 9, France;1. Institute of Physics, Bhubaneswar, Odisha 751005, India;2. Nanophotonics Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India;3. Department of Physics, University of North Texas, Denton, TX 76203, USA;4. UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata 700 098, India;5. Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400 085, India;6. Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India;1. Institute of Physics, Jan Dlugosz University, ul. Armii Krajowej 13/15, 42-202 Częstochowa, Poland;2. Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5/7, 87-100 Torun, Poland;3. Institute of Nuclear Sciences, Ankara University, TR-06100 Beşevler, Ankara, Turkey;1. Department of Archaeometry and Physicochemical Measurements, R.C. ‘Athena’, P.O. Box 159, Kimmeria University Campus, 67100 Xanthi, Greece;2. Nuclear Physics Laboratory, Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;3. General Hospital of Xanthi, 67100 Xanthi, Greece
Abstract:Sodium chloride – NaCl is one of materials indicating strong OSL signal after exposure on ionizing radiation. Previous studies of the OSL response in pure sodium chloride showed coexistence of fading and regeneration of the signal using the newly developed variable delay optically stimulated luminescence technique (VD-OSL). This paper presents investigations of some peculiarities of long time scale OSL properties of rock salt (halite) including sensitization phenomena for various bleaching methods. Dose response characteristics were studied in the range from 200 mGy to 1 Gy for series of halite aliquots without signal bleaching and for single aliquot using zeroing by blue and green light.
Keywords:Optically stimulated luminescence (OSL)  Halite  Sodium chloride (NaCl)  Fading  Regeneration effect
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