Development of Ag doped crystalline SiO2 for possible applications in real-time in-vivo OSL dosimetry |
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| Affiliation: | 1. Institute of Science, R.T. Road Civil Lines, Nagpur, India;2. Institute of Forensic Science, R.T. Road Civil Lines, Nagpur, India;3. R.T.M Nagpur University, Nagpur, India;4. RP & AD, Bhabha Atomic Research Centre, Mumbai, India;5. D.S.T Fellow, C/o RP & AD, Bhabha Atomic Research Centre, Mumbai, India;1. Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Ji׳nan 250100, People׳s Republic of China;2. School of Chemistry and Chemical Engineering, Shandong University, Ji׳nan 250100, People׳s Republic of China;1. Laboratório de Qumica do Estado Sólido, Departamento de Qumica Fundamental – CCEN, Universidade Federal de Pernambuco, BR 101 s/n, 50670-901, Recife, PE, Brazil;2. Programa de Pós-graduacão em Ciência de Materiais – PPGMTR, CCEN, Universidade Federal de Pernambuco, BR 101 s/n, 50670-901, Recife, PE, Brazil;1. The Research Institute of Natural Science and Department of Physics, Gyeongsang National University, Jinju 660-701, Republic of Korea;2. Health Physics Team, Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejeon 305-600, Republic of Korea;1. Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel;2. Redwood Scientific Incorporated, Pacifica, CA 94044-4300, USA;3. Physics Department, McDaniel College, Westminster, MD 21157, USA;1. Luminescence Dating and Dosimetry Laboratory, Department of Archaeology, Durham University, Durham DH1 3LE, UK;2. Department of Physics, Science Laboratories, Durham University, Durham DH1 3LE, UK |
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| Abstract: | A new Ag-doped crystalline SiO2 based OSL phosphor is developed. This phosphor shows good OSL properties and the sensitivity is comparable to that of the commercial Al2O3:C. For the luminescence integrated over initial 3s, BSL (blue stimulated luminescence) and GSL (green stimulated luminescence) sensitivities were found to be 0.54 and 3.1 times the respective BSL and GSL sensitivities of the commercial Al2O3:C. The PL emission is found to vary from UV to visible range with the change in the Ag concentration. Thus the material can be used as BSL or GSL phosphor. The simple preparation procedure, fast decay, very good sensitivity will make this phosphor suitable for real-time dosimetric applications, using OSL technique. |
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| Keywords: | Photoluminescence OSL Transition metal ions In vivo dosimetry |
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