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Optically stimulated luminescence in Ag doped Li2B4O7 single crystal and its sensitivity to neutron detection and dosimetry in OSL mode
Affiliation:1. Physics Department, Cukurova University, Arts-Sciences Faculty, 01330, Adana, Turkey;2. Jazan University, Physics Department, P.O. Box 114, 45142, Jazan, Saudi Arabia;3. Department of Physics, Manisa Celal Bayar University, Faculty of Arts and Sciences, Muradiye-Manisa, 45010, Turkey;1. P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninskiy Prosp. 53, 119991 Moscow, Russia;2. Faculty of Physics, Lomonosov Moscow State University, 119991, Leninskiye Gory 1-2, Moscow, Russian Federation;3. Physics Institute of the University of Tartu, 50411, W. Ostwaldi tn 1, Tartu, Estonia;4. Faculty of Science, RUDN University, 117198, Ordzhonikidze Str. 3, Moscow, Russian Federation;5. Moscow Institute of Physics and Technology (State University), Institutskií Per. 9, 141700 Dolgoprudnyí, Moscow Region, Russia;1. Physics Department, Oklahoma State University, Stillwater, OK 74078, USA;2. Departamento de Física, FFCLRP-Universidade de São Paulo, 14040-901 Ribeirão Preto-SP, Brazil;3. Mersin University Science and Letter Faculty Physics Department 33343 Mersin, Turkey;4. R&D Pigments, Ferro Corporation, 251 W. Wylie Ave, Washington, PA 15301, USA;1. University of Zielona Góra, Institute of Physics, Division of Spectroscopy of Functional Materials, 4a Szafrana Str., 65-516 Zielona Góra, Poland;2. Vlokh Institute of Physical Optics, Department of Optical Materials, 23 Dragomanov Str., 79-005 Lviv, Ukraine;3. Institute of Low Temperature and Structure Research of the Polish Academy of Sciences, Division of Optical Spectroscopy, Department of Spectroscopy of Laser Materials, 2 Okólna Str., 50-422 Wrocław, Poland;1. Physics Department, Persian Gulf University, Bushehr, Iran, P. O. Box: 7516913817;2. Physics Department, University of Kashan, Kashan, Iran;3. Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran;4. Physics Department, Faculty of Science, Arak University, Arak, Iran;5. Nuclear Energy Research Center, Persian Gulf University, Bushehr, Iran;6. School of Materials Science and Engineering, Ji Lin Jian Zhu University, Changchun, 130018, China
Abstract:Optically stimulated luminescence (OSL) measurements have been carried out on single crystals of Ag doped Li2B4O7 (LTB:Ag) after exposure to various nuclear radiations. The time integrated OSL intensity is found to be linear in the range from 0.1 Gy to 500 Gy. Fading of the OSL signal was found to be around 36% in 48 h. The presence of 6Li and 10B has been gainfully utilized to measure doses of thermal neutrons. Further, the large difference between the wavelength of the stimulation source (∼460 nm) and emission from the LTB:Ag at 270 nm has enhanced the signal-to-noise ratio in a simple OSL set-up with suitable filters. The high sensitivity of the LTB:Ag to thermal neutrons will be useful in variety of applications including personal dosimetry in mixed-fields and imaging devices for neutron radiography.
Keywords:Single crystal  Lithium tetraborate (LTB)  Photoluminescence (PL)  Thermally stimulated luminescence (TSL)  Optically stimulated luminescence (OSL)
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