Effects of gamma irradiation on optical and structural properties of PbO–Bi2O3–B2O3 glasses |
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| Institution: | 1. Department of Physics, Guru Nanak Dev University, Amritsar 143005, India;2. Department of Electronics Communication, Guru Nanak Dev University, Amritsar 143005, India;1. Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand;2. Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;3. Department of Physics, Faculty of Science, King Mongkut''s University of Technology Thonburi, Bangkok, Thailand;1. Department of physics, college of science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia;2. Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India;3. Department of physics, Faculty of Science, Isra University, Amman, Jordan;4. Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman bin Faisal University (IAU), P.O. Box 1982, Dammam 31441, Saudi Arabia;5. University College, Benra, Dhuri, Punjab 148024, India;6. Department of Physics, Punjabi University, Patiala, Punjab 147002, India |
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| Abstract: | Optical and structural properties of xPbO·2xBi2O3(1?3x)B2O3 glasses of different composition have been studied using UV-VIS and FTIR spectroscopic techniques. Effects of gamma radiations on glass network and structural units have been studied by irradiating glass samples with a 60Co radioisotope to the overall dose of 2.5 kGy. It is shown that irradiation causes compaction of the borate network by breaking the bonds between trigonal elements, which leads to a decrease in the optical band gap energy. Changes in the atomic structure before and after the irradiation are observed and explained. |
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