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Luminescence and scintillation properties of BaF2Ce transparent ceramic
Affiliation:1. School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang, 330063, China;2. Department of Physics, The University of Texas at Arlington, Arlington, TX, 76019-0059, USA;3. Department of Life and Physical Sciences, Fisk University, Nashville, TN, 37208-3051, USA;4. Department of Chemistry, The University of Western Ontario, London, Ontario, N6A 5B7, Canada;5. Department of Electrical Engineering, The University of Texas at Arlington, TX, 76019, USA;6. Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH, 43403, USA;1. Department of Physics, Faculty of Sciences, University of Birjand, Birjand, Iran;2. Department of Physics, Islamic Azad University, Science and Research Branch, Tehran, Iran;3. School of Physics, Damghan University, Damghan, Iran;1. Department of Physics, The University of Texas at Arlington, Arlington, TX 76019-0059, USA;2. Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7;3. School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China;4. Department of Life and Physical Sciences, Fisk University, Nashville, TN 37208-3051, USA;5. Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;6. Department of Physics, Beihang University, Beijing 100191, China;1. School of Science, Wuhan University of Technology, Wuhan 430070, China;2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;3. Center of Materials Research and Analysis, Wuhan University of Technology, Wuhan 430070, China;1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;2. Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
Abstract:Cerium doped Barium Fluoride (BaF2single bondCe) transparent ceramic was fabricated and its luminescence and scintillation properties were studied. The photoluminescence shows the emission peaks at 310 nm and 323 nm and is related to the 5d-4f transitions in Ce3+ ion. Photo peak at 511 keV and 1274 keV were obtained with BaF2single bondCe transparent ceramic for Na-22 radioisotopes. Energy resolution of 13.5% at 662 keV is calculated for the BaF2single bondCe transparent ceramic. Light yield of 5100 photons/MeV was recorded for BaF2single bondCe(0.2%) ceramic and is comparable to its single crystal counterpart. Scintillation decay time measurements shows fast component of 58 ns and a relatively slow component of 434 ns under 662 keV gamma excitation. The slower component in BaF2single bondCe(0.2%) ceramic is about 200 ns faster than the STE emission in BaF2 host and is associated with the dipole-dipole energy transfer from the host matrix to Ce3+ luminescence center.
Keywords:Barium fluoride  Transparent ceramic  Scintillation  Photo peak  Luminescence  Scintillation decay time
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