Article
Nuclear Science & Technology
Riccardo Martellucci, Daniele Torsello
Summary: This study investigates the potential use of biochar as a neutron shielding material in concrete and finds that it has comparable or better shielding performance than commonly used materials, making it an interesting and greener alternative.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jamila S. Alzahrani, Z. A. Alrowaili, Canel Eke, Zakaria M. M. Mahmoud, C. Mutuwong, M. S. Al-Buriahi
Summary: This paper presents an extensive evaluation of the nuclear shielding features of Ni-, Fe-, Pb-, and W-based alloys using FLUKA simulations and XCOM nuclear database. The findings show that FLUKA is an accurate technique for developing new alloys for shielding applications in nuclear sites. The radiation protection efficiency varies for different alloys at 0.284 MeV, while the neutron cross sections of the studied alloys are similar, with no significant variation with chemical compositions.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Materials Science, Ceramics
A. S. Abouhaswa, M. I. Sayyed, Abeer S. Altowyan, Y. Al-Hadeethi, K. A. Mahmoud
Summary: A new glass system with varying Sm2O3 content was synthesized using a solid-state conventional approach. The density, structure, optical properties, and radiation shielding capacity of the glasses were studied, showing that the insertion of Sm2O3 enhanced their shielding capabilities.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Jesus A. Caraveo-Frescas, Martin G. Reyes-Banda, Leunam Fernandez-Izquierdo, Manuel A. Quevedo-Lopez
Summary: This study combines novel techniques to enhance the efficiency of perovskite-based microstructured thermal neutron detectors and demonstrates significant improvement in gamma-ray discrimination.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Nuclear Science & Technology
Nassreldeen A. A. Elsheikh
Summary: Monte Carlo simulations were used to model a portable Neutron backscattering (NBT) sensor for detecting plastic anti-personnel mines (APMs) buried in dry and moist soils. The optimal configuration was determined through parameter optimization, and the sensor was tested for detection.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Bunyamin Aygun, Erdem Sakar, Abdulhalik Karabulut, Bunyamin Alim, Mohammed Sayyed, Vishwanath P. Singh, Nergiz Yildiz Yorgun, Ozgur Firat Ozpolat
Summary: This study investigates the fast neutron and gamma-ray absorption capacities of new glasses by doping different compounds and using Monte Carlo simulation codes. The experimental neutron absorbed dose measurements reveal that GS4 glass has the best neutron protection capacity. Additionally, the gamma-ray shielding properties were calculated with newly developed software, showing that GS1 and GS2 glasses are equivalent to Pb-based glass.
Article
Nuclear Science & Technology
Jamila S. Alzahrani, Z. A. Alrowaili, I. O. Olarinoye, Miysoon A. Alothman, Ateyyah M. Al-Baradi, Imen Kebaili, M. S. Al-Buriahi
Summary: The study demonstrates the radiation attenuation properties and buildup factors of ferroalloys with the chemical structure of Cr-Fe-Si-C using simulations and theoretical approaches. The results show that the density and atomic numbers of Cr and Fe are crucial in enhancing the radiation attenuation properties and nuclear shielding performance of the alloys. The energy response analysis reveals that the studied ferroalloys are superior radiation shields compared to ordinary concrete, barite concrete, and RS360, indicating their high potential for radiation protection functions.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Multidisciplinary Sciences
Jan Kessler, Francesco Calcavecchia, Thomas D. Kuehne
Summary: Inspired by the universal approximation theorem and the widespread adoption of artificial neural network techniques, feed-forward neural networks are proposed as a general purpose trial wave function for quantum Monte Carlo simulations of continuous many-body systems. The accuracy of the trial wave functions was demonstrated by studying an exactly solvable model system of two trapped interacting particles and the hydrogen dimer. The whole many-body wave function can be represented by a neural network for simple model systems, while the antisymmetry condition of non-trivial fermionic systems is incorporated by means of a Slater determinant.
ADVANCED THEORY AND SIMULATIONS
(2021)
Article
Materials Science, Multidisciplinary
Jeongkwon Kwak, Boravy Muth, Hyeon-Woo Yang, Chang Je Park, Woo Seung Kang, Sun-Jae Kim
Summary: Radiation can cause harm to the human body, the environment, and electronic equipment. The commonly used gamma ray shields containing Pb pose problems due to the toxicity of lead. A new multilayer structure consisting of ZrH2, U, and W has shown potential as a replacement for traditional shielding materials to block both neutron and gamma rays.
KOREAN JOURNAL OF METALS AND MATERIALS
(2021)
Article
Engineering, Biomedical
Leanderson P. Cordeiro, Lidia de Sa, Rafael A. Kitamikado, Marcelo T. Sapienza, Daniel A. B. Bonifacio
Summary: In this study, the GATE Monte Carlo code and its variance reduction techniques were used to evaluate the calculation of S values (absorbed dose) of organs for radionuclides such as lutetium-177, iodine-131, yttrium-90, and radium-223. Comparison with data from the OpenDose collaboration showed that certain variance reduction techniques can significantly reduce simulation time while maintaining the statistical quality of the absorbed dose values, demonstrating the feasibility of the Monte Carlo method in internal dosimetry.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Article
Chemistry, Physical
Gharam A. Alharshan, Z. A. Alrowaili, Canel Eke, Imed Boukhris, I. O. Olarinoye, Jamila S. Alzahrani, Chahkrit Sriwunkum, M. S. Al-Buriahi
Summary: In this study, the transparency data of charged and uncharged radiation in ZnO-CaO-Na2B4O7-CuO glasses were obtained and analyzed to investigate their potential for radiation protection. The results showed that the gamma-ray absorption abilities of the glasses were improved by the addition of ZnO.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Instruments & Instrumentation
S. Ghosh, P. Das
Summary: Tracking of single cells, especially metastatic cancer cells, immune cells, and stem cells, is crucial for developing new therapeutic techniques. The feasibility of utilizing the Compton-PET system for single-cell tracking was evaluated and compared to PET scanners. The combination of double and single events in the Compton-PET system improved tracking performance.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Chemistry, Physical
M. S. Al-Buriahi
Summary: This study focuses on the nuclear security and radiation shielding properties of borate glasses containing zinc, bismuth, and lithium. The results indicate that the borate glass with 20 mol% Bi2O3 and 5 mol% Li2O has potential advantages in radiation shielding applications.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
Danijel Velimirovic, Dusan Mrdja, Kristina Bikit, Jan Hansman, Jovana Knezevic, Sofija Forkapic, Tomas Nemes, Istvan Bikit
Summary: Low-energy continuous gamma radiation from cosmic sources and skyshine radiation from environmental radionuclides contribute to the gamma flux on Earth's surface. Monte Carlo simulations were used to analyze the backscattering of gamma radiation and compare the results with experimental measurements. The study also investigates the effect of height and distance from the shore on the reduction of skyshine intensity.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Nuclear Science & Technology
Mansour Asgari, Hossein Afarideh, Hassan Ghafoorifard, Eskandar Asadi Amirabadi
Summary: The study revealed a direct relationship between the linear attenuation coefficients of the absorbent and filler ratio in polymer composites used for radiation shielding, with decreasing particle size of the shielding material improving radiation shielding features.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Ozge Kilicoglu, H. O. Tekin
CERAMICS INTERNATIONAL
(2020)
Article
Physics, Multidisciplinary
Yasser B. Saddeek, Shams A. M. Issa, T. Alharbi, H. O. Tekin, O. Kilicoglu, T. T. Erguzel, K. Aly, Mahmoud Ahmad
Article
Materials Science, Ceramics
Ozge Kilicoglu, H. O. Tekin
CERAMICS INTERNATIONAL
(2020)
Article
Materials Science, Ceramics
Mohamed M. Abuzaid, G. Susoy, Shams A. M. Issa, W. Elshami, O. Kilicoglu, H. O. Tekin
CERAMICS INTERNATIONAL
(2020)
Article
Chemistry, Physical
H. O. Tekin, O. Kilicoglu
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Ceramics
H. O. Tekin, L. R. P. Kassab, Ozge Kilicoglu, Evellyn Santos Magalhaes, Shams A. M. Issa, Guilherme Rodrigues da Silva Maltos
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Materials Science, Ceramics
M. A. M. Uosif, A. M. A. Mostafa, Shams A. M. Issa, H. O. Tekin, Z. A. Alrowaili, O. Kilicoglu
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Materials Science, Multidisciplinary
G. Susoy, E. E. Altunsoy Guclu, Ozge Kilicoglu, M. Kamislioglu, M. S. Al-Buriahi, M. M. Abuzaid, H. O. Tekin
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Materials Science, Ceramics
Yasser B. Saddeek, Shams A. M. Issa, E. E. Altunsoy Guclu, O. Kilicoglu, G. Susoy, H. O. Tekin
CERAMICS INTERNATIONAL
(2020)
Article
Materials Science, Ceramics
Gokhan Kilic, Shams A. M. Issa, Erkan Ilik, O. Kilicoglu, H. O. Tekin
Summary: This study successfully synthesized zinc-borate glasses with different Eu2O3 concentrations and investigated their optical, physical, and nuclear radiation shielding properties. The addition of Eu2O3 was found to affect the density, molar volume, and optical band gaps of the glasses. The glass with 3% mol Eu2O3 showed superior nuclear shielding competence.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Gokhan Kilic, Shams A. M. Issa, Erkan Ilik, O. Kilicoglu, U. Gokhan Issever, R. El-Mallawany, Bashar Issa, H. O. Tekin
Summary: The direct effect of samarium (III) oxide reinforcement on physical, thermal, optical, structural and nuclear radiation attenuation properties of novel borotellurite glasses was investigated through experimental and numerical studies. The results showed that TBVS1.5 sample with the highest Sm2O3 additive exhibited the lowest transmittance and highest absorbance, indicating superior nuclear radiation shielding properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Ozge Kilicoglu, Umit Kara, Ibrahim Inanc
Summary: This study explores the effectiveness of gamma rays attenuation of various N95 respirator samples by analysing theoretical parameters and found that the N2 sample has the best performance in terms of radiation attenuation.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Physics, Multidisciplinary
H. O. Tekin, A. S. Abouhaswa, Ozge Kilicoglu, Shams A. M. Issa, Iskender Akkurt, Y. S. Rammah
Article
Physics, Multidisciplinary
Yasser B. Saddeek, H. O. Tekin, Shams A. M. Issa, O. Kilicoglu, W. Elshami, T. Alharbi
Article
Chemistry, Multidisciplinary
H. O. Tekin, F. Akman, Shams A. M. Issa, M. R. Kacal, O. Kilicoglu, H. Polat
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2020)
Article
Chemistry, Physical
A. Khallouqi, A. Halimi, O. El Rhazouani
Summary: A pediatric head phantom made of epoxy resin was used to evaluate radiation exposure in CT scans. The phantom demonstrated dosimetric properties comparable to commercially available phantoms, making it a practical and economical option for assessing radiation dose in children.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. Y. Shoeib, Doaa A. Ahmed, A. F. Abd-Elraheem
Summary: The research aims to measure and analyze the levels of radon concentration, radium concentration, and radon exhalation rates in geopolymer cement mixes, and assess their impact on indoor air quality. Results indicate that geopolymer cement materials are safe for use in construction, except for specific mixes.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. J. Leotlela
Summary: This article presents the results of radiochemical events/processes that occur when water is exposed to ionising radiation of charged particles (beta and alpha-particles). The idea of cogeneration becomes even more lucrative if we consider that hydrogen energy generation is clean (also known as green energy) because of its insignificant contribution to environmental pollution. These results supplement the fluctuation in effective dose theory/hypothesis of a previous study on time-dependent variations in the radiological health impact of an interim SNFS facility presented in 2021 (Leotlela, 2021).
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Vyacheslav Ivanovich Pavlenko, Roman Vladimirovich Sidelnikov, Vitaly Valerievich Kashibadze, Mikhail Igorevich Dobynde, Dmitry Alexandrovich Kartashov, Vyacheslav Alexandrovich Shurshakov
Summary: This work explores the possibility of using a polymer composite to protect against neutron radiation in space conditions. The study shows that the proposed polymer composite has high structural properties necessary for use in space. Monte Carlo simulation is used to evaluate the neutron radiation passage through the material. The results demonstrate that the protective layer made of the polymer composite is thinner and more suitable for spacecraft, which is crucial due to limited space on board.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Islam G. Alhindawy, M. I. Sayyed, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, Mohammad S. Alomar, Gaber A. Elawadi, K. A. Mahmoud
Summary: This study investigated the effects of Neodymium (III) nitrate hexahydrate and lanthanum nitrate hexahydrate on the structural and radiation shielding properties of zircon mineral, and a new La/Nb-doped ZrO2 nanocomposite was fabricated. Experimental techniques such as energy-dispersive X-ray, scanning electron microscope, transmission electron microscopy, and X-ray diffraction pattern were used to analyze the structure and composition of the fabricated nanocomposites. Monte Carlo simulation was employed to evaluate the gamma-ray shielding properties. The results showed that the fabricated composites had good shielding characteristics, with a shielding capacity of 30-50% compared to pure lead in the intermediate energy range of 0.244-2.506 MeV.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Hassan Salah, Mohammed Alkhorayef, Layal Jambi, Mohammed Almuwanis, Abdelmoneim Sulieman
Summary: Cardiovascular nuclear medicine imaging examinations expose patients to high doses of ionizing radiation. This study assessed the radiation doses and public exposure in cardiac rest and stress SPECT scans. The effective dose from cardiac stress was higher than previous studies, which may be influenced by clinical indication imaging protocols and radiation safety measures.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Leandro Barbosa da Silveira Gatto, Delson Braz, Leonardo Pacifico, Paulo Travassos, Luis Alexandre Goncalves Magalhaes
Summary: This study evaluated the mean glandular dose (MGD) in mammography using a computed radiography (CR) system with a solid-state detector. Irradiations and simulations were conducted to determine the MGD and spectra for the same conditions. The results showed that the glandular dose was below the acceptable levels and the spectra were mostly in accordance with the literature.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Mawya Khafaji, Rashid Barnawi, Salma Amoudi, Hassan Gabbani, Rayan Alhazmi, Rayan Ahyad, Khalid Alsafi, Khuld Saeedi, Hassan Salah, Nissren Tamam, David Bradley, Sarah Albahiti, Abdelmoneim Sulieman
Summary: This study aimed to calculate typical values for common pediatric studies at King Abdulaziz University Hospital and compare them with other studies. The results showed that radiation dose levels in pediatric CT examinations were generally lower compared to other studies.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Faisal Almisned, Iskender Akkurt, Nurdan Karpuz
Summary: In this study, cross sections of medical radioisotopes were calculated using level density models. The results were compared with experimental data and it was found that the GSM level density models generally yielded consistent conclusions.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Shokufeh Saeid, Neda Mollakhalili-meybodi, Fateme Akrami Mohajeri, Farzan Madadizadeh, Elham Khalili Sadrabad
Summary: This study found that gamma irradiation significantly reduces the saponin and phytic acid content of quinoa. At a dose of 2.5 kGy, it can effectively reduce saponin and phytic acid without significantly damaging the antioxidant compounds.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Maria Demeter, Ion Calina, Anca Scarisoreanu, Valentina Mitran, Marcela Popa, Anisoara Cimpean, Mariana Carmen Chifiriuc, Marin Micutz, Elena Matei, Bogdana Mitu
Summary: Novel biocompatible composite hydrogels with good elastic and antimicrobial properties were synthesized by e-beam cross-linking using chitosan, water-soluble polymers, and silver nanoparticles (AgNP). The composite hydrogels showed high stability, absorption capability specific to infected wounds, and biocompatibility. The antimicrobial activity was influenced by the amount of AgNP and cross-linking degree, with significant inhibition against Gram-negative bacteria.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Anuor AT. Ayoub, Yushou Song, Mamoun IA. Sagiroun
Summary: This paper presents an assessment of the radiological hazard for humans from nuclear power plant effluent released into a river under normal operation scenarios. The study concludes that the radiological hazard from this effluent is minimal and within acceptable limits according to international standards. It also highlights the potential hazards related to the higher concentration of 137Cs in sediments over time.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Irabati Chakraborty, Nidhi Sinha, Bobby Antony
Summary: This article investigates the electron impact ionization of prebiotic molecules within the interstellar medium. By calculating the electron impact ionization cross section, the study provides insights into the chemistry of these molecules and their interaction with electrons, which play a vital role in the emergence of life's essential building blocks.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
C. V. Vishnu, Antony Joseph
Summary: This study investigated the gamma-ray shielding properties of composite materials made from natural rubber with different proportions of Barium Tungstate. The addition of Barium Tungstate significantly improved the characteristics of gamma radiation shielding. The experimental measurements showed good agreement with theoretical calculations obtained from simulation results.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Derya Mutlu, Idris Karagoz, Harun Sepetcioglu, Urkiye Akar Tarim, Orhan Gurler
Summary: This study examined the properties of epoxy composites with dendritic copper particles and found that the addition of copper particles improved the electrical conductivity and mechanical properties of the composites. The glass transition temperature of the composites could be adjusted by varying the copper particle ratio. The study also evaluated the shielding properties of epoxy-based composites against gamma radiation and found that the addition of copper particles significantly altered the microstructure and mechanical properties of the composites.
RADIATION PHYSICS AND CHEMISTRY
(2024)
