Determination of gamma and fast neutron shielding parameters of magnetite concretes |
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| Affiliation: | 1. Department of Marine Engineering, Faculty of Marine, Yuzuncu Yil University, 65080, Van, Turkey;2. Department of Chemistry, Faculty of Science, Yuzuncu Yil University, 65080, Van, Turkey;3. Department of Physics, Faculty of Science, Ataturk University, 25240, Erzurum, Turkey;4. Department of Biophysics, Faculty of Medical, Yuzuncu Yil University, 65080, Van, Turkey;5. Department of Civil Engineering, Faculty of Engineering, Yuzuncu Yil University, 65080, Van, Turkey;1. Mersin University, Chemical Engineering Department, 33343 Yeni?ehir, Mersin Turkey;2. ?stanbul Technical University, Energy Institute, ?stanbul Turkey;1. Accelerators & Ion Sources Department, Basic Nuclear Science Division, Nuclear Research Center, Atomic Energy Authority, 13759 Cairo, Egypt;2. North Carolina State University, Department of Nuclear Engineering, Raleigh, NC 27695, USA;1. Central Iran Research Complex (Yazd), Nuclear Science and Technology Research Institute (NSTRI), Yazd, Iran;2. Radiation Application Research School, Nuclear Science and Technology Research Institute (NSTRI), P.O.Box: 14395-836, Tehran, Iran;3. Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran;1. Mersin University, Chemical Engineering Department, 33343 Yeni?ehir-Mersin, Turkey;2. ?stanbul Technical University, Energy Institute, ?stanbul, Turkey;1. Akdeniz University, Faculty of Science, Department of Physics, 07058 Antalya, Turkey;2. Kocaeli University, Department of Chemical Engineering, 41380 Kocaeli, Turkey;3. Selcuk University, Faculty of Engineering, Department of Mechanical Engineering, 42000 Konya, Turkey;4. F?rat University, Faculty Education, Department of Science Education, 23169 Elaz??, Turkey;5. F?rat University, Faculty of Science, Department of Physics, 23169 Elaz??, Turkey;1. Department of Physics, Faculty of Science, Yüzüncü Y?l University, 65080 Van, Turkey;2. Department of Nuclear Energy Engineering, Faculty of Engineering, Sinop University, 57000 Sinop, Turkey;3. Department of Physics, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey |
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| Abstract: | In this study, some gamma shielding parameters such as mass attenuation coefficient (μρ), effective atomic number (Zeff), electron density (Nel) and buildup factors have been investigated for concretes with and without magnetite aggregate. The measurements have been carried out using 1.25 MeV (mean energy of 1.1732 MeV and 1.3325 MeV photons of a 60Co radioactive source) gamma photons. The theoretical values of μρ have been calculated in the energy range from 1 keV to 100 GeV by WinXCom computer code and these values were used in order to calculate the values of Zeff and Nel. And fast neutron shielding parameter namely effective removal cross-sections (ΣR, cm?1) have been calculated. In addition, Energy absorption buildup factors (EABF) and exposure buildup factors (EBF) values of concrete samples have been calculated for photon energy 0.015–15 MeV up to 40 mfp (mean free path) penetration depths. The results of this study showed that the magnetite concrete is more efficient than the ordinary concrete for fast neutrons and gamma rays. |
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| Keywords: | Mass attenuation coefficient Effective atomic number Electron density Effective removal cross-section Buildup factor Magnetite concrete |
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