Article
Chemistry, Physical
S. Kaewjaeng, S. Kothan, N. Wantana, H. J. Kim, R. Rajaramakrishna, C. Jumpee, P. Limsuwan, J. Kaewkhao
Summary: High transparency radiation shielding materials and luminescence materials with stoichiometric ratio of xGd2O3:10La2O3:10ZnO:(79-x) B2O3: 1Sm2O3 (x = 0, 5, 10, 15, and 20 mol%) were developed using melt quenching technique. The physio-optical properties of the glasses, including molar volume, density, concentration of rare-earth ions, polaron radius, inter-ionic radius, optical basicity, average distance between rare-earth ions, and optical packing density, were evaluated. The glass samples exhibited high density, which is important for radiation shielding. The absorption spectra showed significant bands of Sm3+ ions. The glasses doped with Gd2O3 content of 10 mol%, 15 mol%, and 20 mol% showed better performance than X-ray windows at 10 kVp.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
Zhicheng Qian, Jun Cai, Changyuan Li, Zhihong Zhang, Jianhua Wang
Summary: The study found that increasing the content of PbO in the glass can enhance the gamma ray shielding capability, with Pb40B20 glass showing the best shielding effect, having higher HVL and Zeff values.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Erkan Ilik, Esra Kavaz, Gokhan Kilic, Shams A. M. Issa, Hesham M. H. Zakaly, H. O. Tekin
Summary: This study fabricated six different types of reinforced calcium-borate glasses and evaluated their optical, structural, physical, and radiation shielding properties. The experimental results showed that BaO2/V2O5 glasses exhibited the best shielding performance.
CERAMICS INTERNATIONAL
(2022)
Article
Nuclear Science & Technology
Y. S. Rammah, H. O. Tekin, C. Sriwunkum, I. Olarinoye, Amani Alalawi, M. S. Al-Buriahi, T. Nutaro, Baris T. Tonguc
Summary: This paper investigated the gamma-ray shielding properties of the SBC-Bx glass system with different compositions, and found that the shielding effectiveness improved with increasing BaO content. Among the glasses studied, SBCB35 glass exhibited superior shielding capacity.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Zehra Nur Kuluozturk, Recep Kurtulus, Nilgun Demir, Taner Kavas
Summary: In this study, we investigated the effects of lanthanum oxide (La2O3) on barium-lead-borosilicate (BLBS) glass systems. We found that increasing La2O3 content had a positive influence on glass density and molar volumes. In terms of gamma-ray attenuation characteristics, the linear attenuation coefficient (LAC) increased with the addition of La2O3, with the La-20 sample showing the highest protection ability. Our experimental results were consistent with simulations and previous studies. Furthermore, the glass samples with added La2O3 showed potential for photon shielding applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Optics
R. El-Mallawany, W. M. Abou-Taleb, MA. Naeem, ME. Krar, S. Talaat
Summary: In this study, tellurite glasses with varying Bi2O3 concentrations were synthesized and their optical properties and gamma-ray shielding capabilities were investigated. The glass sample containing 20 mol% Bi showed the highest absorption for gamma radiation at 15 keV, attributed to the high atomic number of Bi. The results indicated that Bi-doped glasses are effective for shielding against gamma radiation.
Article
Materials Science, Ceramics
M. H. A. Mhareb, M. Sayyed, M. Kh Hamad, Nouf Almousa, Nidal Dwaikat, Nimitha S. Prabhu, M. Monisha, Sudha D. Kamath
Summary: In this study, the effect of various modifiers on the properties of a new composition of TeO2-SrO-B2O3-MO glass was investigated. The sample containing lead showed the highest density and the best radiation shielding properties.
CERAMICS INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Norah A. M. Alsaif, Z. Y. Khattari, Hesham M. H. Zakaly, Y. S. Rammah, Antoaneta Ene, M. S. Al-Buriahi
Summary: The effects of WO3 on neutron and ionizing radiation defending factors of ternary tellurite-based glass blocks have been investigated. The studied glasses exhibited different shielding factors and kinetics properties at different photon energies. The WO3 content in the glasses influenced parameters such as mass attenuation coefficient and mean free path, with TKW-0, TKW-5, TKW-10, TKW-15, and TKW-20 showing varying values.
Article
Multidisciplinary Sciences
Bekir Oruncak
Summary: This study calculated the radiation shielding properties of a glass system with different silver contents, and the results showed the effect of silver content on the shielding properties of gamma rays.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2023)
Article
Optics
M. I. Sayyed, Ashok Kumar, Badriah Albarzan, J. F. M. Jecong, Recep Kurtulus, Aljawhara H. Almuqrin, Taner Kavas
Summary: The novel TeO2-SrO-B2O3 glass systems show excellent optical, mechanical, and radiation shielding properties. The decrease in TeO2 concentration leads to an increase in density and band gap energy, while a decrease in Urbach energy and elastic moduli. The results of mass attenuation coefficient (mu/rho) calculation using EPICS2017 show good agreement with the XCOM theoretical model, indicating the reliability of the two models for the five glass samples.
Review
Polymer Science
Muhd Afiq Hizami Abdullah, Raizal Saifulnaz Muhammad Rashid, Mugahed Amran, Farzad Hejazii, N. M. Azreen, Roman Fediuk, Yen Lei Voo, Nikolai Ivanovich Vatin, Mohd Idzat Idris
Summary: This article provides a comprehensive review on the subject of radiation shielding concrete (RSC), highlighting its potential and development as an advanced concrete product for nuclear energy applications. The composition, shielding characteristics, mechanical strength, and durability of RSC are discussed, along with avenues for future research. The article emphasizes the advantages and potential of RSC in shielding harmful radiation.
Article
Physics, Multidisciplinary
Jamelah S. Al-Otaibi, Ashok Kumar, K. G. Mahmoud, Aljawhara H. Almuqrin, M. Sayyed
Summary: This study focuses on the fabrication of Bi2O3-CdO-TeO2 glasses using a melt quenching technique. XRD confirms the amorphous nature and FTIR provides information on molecular vibrations. UV-Vis absorption spectra and Tauc's plot method are used to understand the optical properties and indirect allowed band gap energies. The band gap energy decreases with increasing Bi2O3 concentration. Monte Carlo simulation technique is used to evaluate the linear attenuation coefficient (& mu;), which improves by 12% and 7% at 0.15 MeV and 0.662 MeV respectively with an increase in Bi2O3 concentration. The fabricated samples have potential applications in gamma-ray shielding.
Article
Materials Science, Ceramics
Recep Kurtulus, Taner Kavas, Huseyin Ozkan Toplan, Iskender Akkurt
Summary: Recently, high-density glass systems have received significant attention for radiation protection. This study focuses on preparing boro-tellurite glass systems with varying compositions. The physical, structural, thermal, and radiation protection properties of the synthesized samples were evaluated to reveal the differences. The findings suggest that these glass systems have potential for enhancing radiation shielding efficiency.
CERAMICS INTERNATIONAL
(2023)
Article
Construction & Building Technology
M. Humaid, J. Asad, A. Aboalatta, S. K. K. Shaat, H. Musleh, Kh. Ramadan, Y. Alajerami, N. Aldahoudi
Summary: A novel technique was developed to produce borosilicate glass samples with varying concentrations of PbO from 90% solid waste. The method involved obtaining PbO from spent lead-acid batteries and using waste glass from vehicles as the glass matrix. The resulting glass samples demonstrated potential as an alternative to traditional manufacturing processes and had strong shielding properties against gamma and neutron radiation.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Physics, Multidisciplinary
M. Sayyed, K. A. Mahmoud, E. Lacomme, Maha M. AlShammari, Nidal Dwaikat, Y. S. M. Alajerami, Muna Alqahtani, B. O. El-bashir, M. H. A. Mhareb
Summary: The study investigated the radiation shielding properties of five glass samples and found that glass coded as MB20 is the most effective radiation shield. Experimental measurements and theoretical simulation results showed strong correlation.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Chemistry, Analytical
S. Amatullah, Rubina Rahman, J. Ferdous, M. M. . M. Siraz, Mayeen Uddin Khandaker, S. F. Mahal
Summary: This study determines the natural radioactivity levels in common building materials used in Bangladeshi dwellings and assesses their potential radiation hazards. The results show elevated concentrations of radionuclides in most materials, highlighting the need for continuous monitoring to avoid unnecessary radiation exposure.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Al Amin Md Sirajul Islam, Md. Moazzem Hossain Miah, Mahiuddin Ahmed, Shahadat Hossain, Mayeen Uddin Khandaker
Summary: This study measured the concentrations of terrestrial radionuclides in sediments from the Karnaphuli and Halda rivers in Bangladesh using high-purity germanium gamma-ray spectrometry. The results showed that the concentrations of Ra-226, Th-232, and K-40 were similar to the world mean value except for four sampling locations near industrial waste discharge channels which had higher concentrations of primordial radionuclides. In addition, about 200 industrial units were identified as environmental pollution sources. Indicators such as radium equivalent activity, external hazard index, and annual effective dose equivalent were calculated to assess the human health hazards from natural radiation.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Nuraddeen Nasiru Garba, Mukhtar Abdulkadir, Rabiu Nasiru, Muneer Aziz Saleh, Suleiman Bello, Mayeen Uddin Khandaker, Che Azurahanim Che Abdullah, Usman Musa Kankara
Summary: Terrestrial gamma radiation dose rates were measured in different locations in Katsina State, Nigeria using a portable radiation survey meter. The highest TGRD values were found in silicified sheared rock and ferruginous tropical soils, while sandstone formations and alluvial and hydromorphic soils had the lowest TGRD values. The study also calculated human health hazard indices, which were found to be higher than world average values but within safety limits recommended by ICRP.
ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES
(2023)
Article
Materials Science, Multidisciplinary
Ashwitha Nancy D'Souza, Basavaraj Padasale, M. S. Murari, Naregundi Karunakara, M. I. Sayyed, Mohamed Elsafi, Hanan Al-Ghamdi, Aljawhara H. Almuqrin, Sudha D. Kamath
Summary: This study investigated the physical, structural, optical and mechanical properties of 12Bi(2)O(3)-8BaO-12ZnO-0.5CeO(2)-17.5SiO(2)- (50-x) B2O3- xTeO(2) glasses with different CeO2 and TeO2 concentrations, to examine their influence on the heavy metal oxide borosilicate network.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Environmental Sciences
Md. Refat Jahan Rakib, Aniruddha Sarker, Kirpa Ram, Md. Giash Uddin, Tony R. Walker, Tanzin Chowdhury, Jamal Uddin, Mayeen Uddin Khandaker, Mohammed M. Rahman, Abubakr M. Idris
Summary: Microplastics are prevalent pollutants that can be found in aquatic ecosystems globally. They can be ingested by aquatic species and transferred through higher trophic level food webs. However, most studies on microplastic aquatic toxicity have been conducted in laboratory settings, and the impact of microplastics on aquatic species and higher trophic level consumers in natural ecosystems is still relatively unknown. This study provides an overview of microplastic transport pathways, ecotoxicology, food web transfer, and examples of toxic pollutants sorbed onto microplastics in aquatic food webs, aiming to guide future research priorities in understanding microplastic toxicity through aquatic food webs.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Polymer Science
A. Atta, E. Abdeltwab, H. Negm, Nuha Al-Harbi, Mohamed Rabia, M. M. Abdelhamied
Summary: PPy/GO composites formed by graphene oxide nanosheets and polypyrrole (PPy) were successfully synthesized for optical energy applications. The nanosheets of GO were uniformly incorporated into PPy, as confirmed by SEM images. The optical parameters, such as absorption edge, band gap, number of carbon clusters, and Urbach energies, were evaluated using UV-Vis method. The results showed that the PPy/GO composites exhibited a reduced band gap and absorption edge compared to pure PPy. Additionally, the composites demonstrated enhanced optical conductivity and the number of carbon clusters. The findings of this research highlight the potential of producing flexible polymeric nanocomposite films with innovative physico-chemical properties for high-performance optoelectronics devices.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Nuha Al-Harbi, A. Atta, A. M. A. Henaish, Mohamed Rabia, M. M. Abdelhamied
Summary: The purpose of this study is to develop innovative physicochemical characteristics of flexible composite films for exceptional optoelectronics products. The effects of PANI on the structural and optical characteristics of CA were demonstrated through XRD, EDX, SEM, and FTIR techniques. The incorporation of PANI in CA resulted in reduced peak intensity and increased broadness in the XRD, indicating intermolecular interactions. FTIR confirmed the successful incorporation of PANI in CA. SEM showed the homogeneous distribution of PANI in CA. UV/Vis spectroscopy revealed changes in the absorption edge, band tail, band gap, and number of carbon clusters with increasing PANI content.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Instruments & Instrumentation
Mayeen Uddin Khandaker, Animesh Kumer Chakraborty, Kotaro Nagatsu, Katsuyuki Minegishi, Ming-rong Zhang
Summary: Excitation functions of the natW(3He, x)184m,gRe nuclear reactions were measured from respective thresholds up to 55 MeV using a conventional stacked-foil activation technique combined with HPGe γ-ray spectroscopy. By separating individual cross-section values based on interference-free characteristic gamma lines, the production of 184mRe and 184gRe were reported for the first time. The default parameters of the nuclear model code TALYS-1.96 were unable to reproduce the excitation functions, but adjusting the level density model, optical model potentials, and other parameters effectively reproduced the measured excitation functions.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2023)
Article
Chemistry, Physical
S. Arunkumar, K. A. Mahmoud, M. Yoosuf Ameen, K. A. Mahmoud, M. I. Sayyed, K. Marimuthu, D. James Silvia, R. Divina, Mohammed S. Alqahtani, El Sayed Yousef
Summary: A new series of Niobium bariumtelluroborate glasses doped with Dy3+ ions were prepared with varying BaO concentrations. The amorphous nature of the glasses was confirmed by XRD investigation. FTIR spectra revealed diverse functional groups. The optical characteristics of the glasses were studied using UV-Vis spectral measurements. The structural and physical properties, as well as the shielding parameters, were estimated and discussed for the Dy3+ incorporated Niobium bariumtelluroborate glasses. The radiation shield capacity of the glasses was improved by increasing the BaCO3 concentration.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
Moustafa Ahmed, Yas M. Al-Hadeethi, Ali M. Abdel-Daiem, Essam R. Shaaban
Summary: In this study, Gd-doped In2O3 thin films with a wide range of Gd doping concentration were chemically produced and their properties were investigated. The films exhibited a cubic structure and were nearly stoichiometric. The optical properties showed a shift in energy gap towards lower wavelengths with increasing Gd doping. Hall effect studies revealed changes in carrier concentration and hall mobility. The construction of a heterojunction device and investigations into its dark characteristics were carried out. The undoped In2O3 films displayed significant magnetism, while the Gd-doped films showed faint ferromagnetism, which was attributed to the formation of oxygen vacancies during the film production process.
Article
Multidisciplinary Sciences
Zuhal Y. Hamd, H. I. Alrebdi, Eyas G. Osman, Areej Awwad, Layan Alnawwaf, Nawal Nashri, Rema Alfnekh, Mayeen Uddin Khandaker
Summary: A better quality radiographic image aids in proper disease diagnosis by the radiologist. This study analyzes chest X-ray exposure factors for 178 patients with different body mass index (BMI) values using the Python Machine Learning algorithm. The results reveal specific exposure factors for each patient based on their BMI, which can have detrimental effects on patient health if exceeded. The findings provide detailed information on the relationship between BMI and optimal chest X-ray exposure factors without compromising image quality.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2023)
Article
Chemistry, Inorganic & Nuclear
A. Atta, Nuha Al-Harbi, B. M. Alotaibi, M. A. M. Uosif, E. Abdeltwab
Summary: In this study, PVA/NaI films were prepared by doping polyvinyl alcohol with sodium iodide. The films were then irradiated with argon ions at different fluence levels. Various characterization techniques were used to study the structural and electrical changes in the films. The results show that the dielectric behavior of the treated PVA/NaI films was significantly modified, making them more suitable for various devices.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Nuclear Science & Technology
S. Arivazhagan, K. A. Naseer, K. A. Mahmoud, S. A. Bassam, P. N. Naseef Mohammed, N. K. Libeesh, A. S. Sachana, M. I. Sayyed, Mohammed S. Alqahtani, E. El Shiekh, Mayeen Uddin Khandaker
Summary: This study utilizes the Hyperion hyperspectral dataset to explore the radiation shielding aspects of iron ore in Kerala. Reflectance spectra obtained from laboratory conditions and images show various absorptions. The results are validated with geochemical data and GPS points. Monte Carlo simulation is employed to evaluate the radiation shielding ability.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Review
Chemistry, Analytical
Mohammad Nur-E-Alam, Devendra Kumar Maurya, Boon Kar Yap, Armin Rajabi, Camellia Doroody, Hassan Bin Mohamed, Mayeen Uddin Khandaker, Mohammad Aminul Islam, Sieh Kiong Tiong
Summary: Metal oxide thin films grown using PVD have attracted significant attention for pH sensing applications. The precise control over film properties offered by PVD techniques, along with the exploration of various thin film materials, have led to the development of high-performing pH sensors.
Article
Materials Science, Multidisciplinary
Abdel-Haleem Abdel-Aty, A. -B. A. Mohamed, Nuha Al-Harbi, Hichem Eleuch
Summary: Using Wigner-Yanase and Fisher information, we investigate the thermal non-local correlations of two-qubit Heisenberg XYZ non-X states in the presence of the Dzyaloshinskii-Moriya (DM) interaction. The decay of the XYZ-Heisenberg non-local correlation can be weakened by increasing the DM interaction and the spin-spin XYZ-Heisenberg interactions. The LQFI correlation shows greater resistance to thermal degradation and the y-component antiferromagnetic coupling protects the nonlocal correlations against high temperatures.
RESULTS IN PHYSICS
(2023)
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)
