Scintillation response of Y3Al5O12:Pr3+ single crystal scintillators |
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| Institution: | 1. Department of Physics, King Mongkut''s University of Technology Thonburi, 126 Pracha-uthit Rd., Bangkok 10140, Thailand;2. Institute of Physics, AS CR, Cukrovarnicka 10, 16253 Prague, Czech Republic;3. CRYTUR Ltd., Palackeho 175, 50001 Turnov, Czech Republic;1. Department of Engineering Physics, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433, USA;2. Vlokh Institute of Physical Optics, Dragomanov 23, L’viv 79005, Ukraine;3. Department of Physics and Astronomy, West Virginia University, Morgantown, WV 26506, USA;1. Institute for Physical Research, National Academy of Sciences, 0203 Ashtarak, Armenia;2. Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Villeurbanne Cédex, France;3. European Organization for Nuclear Research, CERN, 1211 Geneva 23, Switzerland;1. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, Powstańców Wielkopolskich Str., 2, 85090, Bydgoszcz, Poland;2. Electronic Department, Ivan Franko National University in Lviv, Dragomanova Str., 5, 79005, Lviv, Ukraine;3. Institute for Scintillation Materials, National Academy of Sciences of Ukraine, Av. Nauki 60, 61001, Kharkiv, Ukraine;4. Institute of Physics, Academy of Sciences of Czech Republic, Cukrovarnicka Str., 10, 16200, Prague, Czech Republic;5. Faculty of Technical Physics, Poznan University of Technology, Piotrowo Str., 3, 60-965, Poznan, Poland;1. Centro de Investigación Científica y de Educación Superior de Ensenada, Posgrado en Fisica de materiales, Carretera Ensenada-Tijuana No. 3918, Zona Playitas, C.P. 22860 Ensenada, B.C., Mexico;2. Universidad Nacional Autónoma de México—Centro de Nanociencias y Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Ensenada, B.C. 22860, Mexico;1. The Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. Department of Physics, University of Science and Technology of China, Hefei 230026, PR China;4. Laboratory for Advanced Scintillation Materials & Performance, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, PR China |
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| Abstract: | In this paper we present the photoluminescence (PL) and scintillation response of Pr3+-doped Y3Al5O12 (YAG:Pr) single crystals grown by the Czochralski method with different Pr3+ concentrations of 0.16, 0.33, and 0.65 mol%. PL spectra and decay curves were measured for both the fast 5d → 4f and slow 4f → 4f emissions. The PL decay times were evaluated which evidence concentration quenching especially in 1D2 → 3H4 emission for the highest Pr3+ concentration. Light yield (LY) of 15,600 photons per MeV and energy resolution of 6.4% at 662 keV γ-rays were obtained with the YAG:Pr (0.33%) crystal. The LY non-proportionality and energy resolution versus γ-ray energy were measured and the intrinsic resolution was calculated. A good proportionality of the LY was found within 7% over the energy range from 1274.5 keV down to 32 keV. The estimated photofraction in the pulse height spectra of 320 and 662 keV γ-rays was also determined and compared with the theoretical one calculated using WinXCom program. |
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| Keywords: | Energy resolution Light yield Photofraction Scintillation detectors YAG:Pr |
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