Article
Radiology, Nuclear Medicine & Medical Imaging
Zhuxin Li, Claire Michelet, Sebastien Incerti, Vladimir Ivanchenko, Mihaly Novak, Susanna Guatelli, Herve Seznec
Summary: This paper describes the detailed implementation of Geant4 Livermore electromagnetic physics models based on the EPICS2017 database for low energy photon transport. Four photon processes, including gamma conversion, Compton scattering, photoelectric effect, and Rayleigh scattering, are described by these models. New parameterizations based on EPICS2017 were performed to improve the precision of fitted values compared to tabulated values for the scattering functions of Compton effect, subshell cross-sections of the photoelectric effect, and form factors of Rayleigh scattering. The precision of the new parameterizations was evaluated by comparing them with the old parameterizations. The models were tested through a comparative study, in which the mass attenuation coefficient was calculated for total photon interaction and each process using Geant4 simulations based on EPICS2017 and EPDL97. The results showed good agreement with the XCOM reference data.
PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Chaitali V. More, Ferdi Akman, Kamuran Dilsiz, Hasan Ogul, Pravina P. Pawar
Summary: This study calculates the mass attenuation coefficient, radiation protection efficiency, and transmission factor of barium, strontium, manganese, copper, and cadmium ferrites using Geant4 and FLUKA simulations, providing important insights for the protection against neutron-gamma mixed radiation in nuclear applications. Among the studied ferrites, barium ferrite and copper ferrite exhibit superior gamma ray and fast neutron attenuation capability, respectively. This research offers a comprehensive investigation of the application of iron oxides in the field of neutron and gamma ray.
APPLIED RADIATION AND ISOTOPES
(2023)
Article
Nuclear Science & Technology
Mehmet Fatih Turhan, Ferdi Akman, Ahmet Taser, Kamuran Dilsiz, Hasan Ogul, Mustafa Recep Kacal, Osman Agar
Summary: The study investigated photon shielding parameters of Cu-Ag based alloys, revealing that Cu0.2Ag0.8 alloys were more effective against high energetic photon radiations compared to traditional absorbers. These findings hold promising potential for applications in nuclear laboratory and reactor core design.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Norah A. M. Alsaif, Najeh Rekik, Youssef Elmahroug, G. Lakshminarayana, Umer Farooq, Hira Affan, A. Wahab M. A. Husseinb, Chedly Souga
Summary: This study presents a comprehensive theoretical investigation on the gamma-ray, fast neutron, and thermal neutron shielding properties of compositionally graded Pb-free lithium borate glasses doped with barite. The results show that the G20 glass exhibits excellent gamma-ray shielding effectiveness, while the G00 glass demonstrates superior performance in fast neutron and thermal neutron attenuation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Ezgi Eren Belgin
Summary: The most widely used technique for determining theoretical mass attenuation coefficients is the XCOM database, while gamma spectrometry is commonly used for experimental determination. This study compared the results obtained from both methods for composite materials and found good agreement, with higher agreement observed for composites with higher reinforcement density, purity, loading ratio, and gamma energy of interest.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
M. A. M. Uosif, Shams A. M. Issa, Antoaneta Ene, V. Ivanov, A. M. A. Mostafa, Ali Atta, E. F. El Agammy, Hesham M. H. Zakaly
Summary: This study focuses on nuclear security and the radiation shielding capabilities of borate glasses against gamma attenuation. Through simulation experiments, it is found that the glass samples with the chemical composition of (100-x)[30B2O3-70TeO2]-xCuO have excellent shielding effects against gamma radiation in the range of 238-1408 MeV. In addition, compared with traditional shielding materials, these glasses have the potential for application in nuclear radiation protection, which can improve nuclear safety.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nuclear Science & Technology
M. S. Sadeq, I. I. Bashter, S. M. Salem, S. F. Mansour, H. A. Saudi, M. I. Sayyed, A. G. Mostafa
Summary: In this study, borosilicate glasses doped with mixed heavy metals were investigated for their transparency and gamma-ray shielding properties. The results showed that these doped glasses were transparent to visible light and exhibited effective shielding against gamma rays.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Materials Science, Ceramics
Amar Mullankandy Vadavathi, Sai Kumar Chinthakayala, Vijay Sai Kollipara, Gowrishankar Ramadurai, Paramesh Gadige
Summary: Dense glasses in the binary bismuth-borate system were prepared through conventional melt-quenching process, exhibiting excellent optical clarity, high density, and promising radiation shielding properties, making them a potential candidate for radiological applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Ahmed M. El-Khatib, Mohamed Elsafi, Mohamed N. Almutiri, R. M. M. Mahmoud, Jamila S. Alzahrani, M. Sayyed, Mahmoud Abbas
Summary: The gamma-ray shielding ability of various Bentonite-Cement mixed materials from northeast Egypt has been studied by determining their theoretical and experimental mass attenuation coefficients at different photon energies. The results suggest that these materials have the potential to be used for radiation shielding.
Article
Materials Science, Multidisciplinary
Recep Kurtulus, Taner Kavas, Iskender Akkurt, Kadir Gunoglu
Summary: In this study, waste CRT-derived glass systems doped with varying amounts of CoO were synthesized to evaluate their radiation shielding abilities. It was found that increasing CoO content in the glass resulted in improved radiation shielding properties.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Polymer Science
Hanan Akhdar
Summary: Polymers are widely used materials with various applications in medical and industrial fields. In this study, the interaction of photons and neutrons with polysulfone (PSU) was investigated using the Geant4 simulation toolkit. The findings were compared to those of other commonly used polymer materials.
Article
Nuclear Science & Technology
Patricia-Laurelle Degbe, Cebastien Joel Guembou Shouop, Daniel Bongue, Merylle Glawdys Beyinda, Maurice Ndontchueng Moyo, Moise Godfroy Kwato Njock
Summary: This study utilized EDXRF spectrometry to determine the elemental composition and mass attenuation coefficients of nineteen rock samples from the Pouma sub-division of Cameroon. The results showed that the mass attenuation coefficients calculated by GEANT4 simulation were in good agreement with experimental results, with uncertainties less than 4%.
RADIATION EFFECTS AND DEFECTS IN SOLIDS
(2022)
Article
Nuclear Science & Technology
Ali Arvaneh, Ali Asadi, Seyyed Aboalfazl Hosseini
Summary: In this study, the MCNP Monte Carlo (MC) code was used to evaluate the properties of a glass system composed of (55-x)Bi2O3-15Pb3O4-20Al2O3-10ZnO-xTiO2 for protection against gamma-rays. Various parameters related to photon attenuation were investigated at different energy levels. The simulation results were compared with experimental data from the XCOM database, showing good agreement. The study demonstrated that the new combination of materials had more effective attenuation parameters compared to conventional materials like concrete and lead.
PROGRESS IN NUCLEAR ENERGY
(2023)
Article
Chemistry, Physical
O. Kilicoglu, Chaitali V. More, F. Akman, K. Dilsiz, H. Ogul, M. R. Kacal, H. Polat, O. Agar
Summary: Research on advanced composites for protecting the environment from radioactive pollution has shown that polymer micro composites loaded with micro lead (Pb) have high attenuation coefficients for photon radiation, making them promising for applications in protective enclosures and other protective measures.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Polymer Science
M. S. Al-Buriahi, E. Kavaz, U. Perisanoglu, A. Alalawi, T. cakici, S. Alomairy, Y. S. Rammah
Summary: The study explored the nuclear shielding properties of glasses doped with different proportions of SrO, revealing that increasing SrO content leads to a decrease in EBF, EABF, and MFP values, with BPS6 glass exhibiting the best performance in radiation shielding properties.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
