Magnesium lactate mixed with EVA polymer/paraffin as an EPR dosimeter for radiation processing application |
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| Authors: | YS Soliman AA Abdel-Fattah |
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| Institution: | 1. Fellow of Surgery, Division of Coloproctology, Department of Surgery, Botucatu Medical School, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil;2. Associate Professor, Department of Statistics, Faculdade de Tecnologia (FATEC), Marilia, SP, Brazil;3. Associate Professor, Division of Coloproctology, Department of Surgery, Botucatu Medical School, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil;1. School of Medical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Melbourne 3083, Australia;2. Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne 3052, Australia;3. Department of Chemistry and Biology, Rider University, Lawrenceville, NJ 08648, USA;1. Department of Chemistry, Amasya University, 05100 Amasya, Turkey;2. Department of Chemistry, Gazi University, 06500 Ankara, Turkey;1. College of Chemistry and Material Engineering, Chaohu University, Chaohu, Anhui 238000, China;2. School of Biotechnology and Food Engineering, The Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, Anhui 230009, China |
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| Abstract: | The dosimetric characteristics of γ-radiation-induced defects in magnesium lactate (ML) rods (3.5 mm×10 mm) formulated by mixing ML with molten mixtures of paraffin wax and EVA copolymer have been investigated using electron paramagnetic resonance (EPR). The EPR spectrum of irradiated ML rods was characterized by a quartet signal with the spectroscopic splitting g-factor of 2.0048±0.0003 at 0.4 mT. The useful dose range of the rod dosimeter was 100 Gy to 80 kGy. The mass attenuation coefficient, μ/ρ, and the mass energy-absorption coefficient, μen/ρ, versus energy in the range of 10 keV to 20 MeV indicate that the prepared ML dosimeter is typically adipose tissue equivalent overall this energy range. The overall combined uncertainties (at 2σ) associated with routine dose monitoring in the dose range of 0.1–10 kGy and 10–80 kGy were found to be 6.14% and 6.36%, respectively. |
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