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Dosimetric application of green luminescence in irradiated TLD-500 detectors |
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| Institution: | 1. Aristotle University of Thessaloniki, Physics Department, Nuclear Physics and Elementary Particles Physics Section, 54124, Thessaloniki, Greece;2. NCSR Demokritos: Institute of Nanoscience and Nanotechnology Demokritos, Ag. Paraskevi, 15310, Athens, Greece;1. Ionizing Radiation Metrology Department, National Institute for Standards, El-Haram, Giza, Egypt;2. Physics Department, Faculty of Science, Fayoum University, Fayoum, Egypt;3. Greek Atomic Energy Commission (GAEC), Ag. Paraskevi PO Box 6009215310, Greece;4. Nuclear Physics and Elementary Particles Physics Section, Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Makedonia, Greece;1. Department of Physics, Faculty of Art and Science, Celal Bayar University, Manisa, Turkey;2. Experimental Science Applications and Research Center, Celal Bayar University, Manisa, Turkey |
| Abstract: | The spectral and kinetic characteristics of thermoluminescence (TL) for anion-defective α-Al2O3 single crystals in the 4.4–2.2 eV range at 300–600 K were studied. Three-dimensional (3D) plots of the luminescence under research for a sample before and after UV irradiation at 623 K for 30 min were analyzed. The increase in the emission response in the 2.4 and 3.7 eV bands for the sample after the photothermal treatment was observed. The dominant contribution of a thermally stimulated process with first-order kinetics in the regularities of the 2.4 eV luminescence was shown. The linearity of the dose dependences for the 2.4 eV TL response in different samples at 10−5–1 Gy was demonstrated. The advantage of using the green thermoluminescence in the TLD-500 for solid state dosimetry was discussed. |
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