Review
Chemistry, Physical
Xiaoxuan Huang, Donghui Wen, Jianlong Wang
Summary: This paper summarizes the recent advances in the radiation-induced degradation of sulfonamide and quinolone antibiotics in aqueous solution. It focuses on analyzing the influencing factors and degradation pathways, providing references for optimizing experimental conditions and exploring the treatment mechanism of these two types of antibiotics in actual wastewater.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. T. Ozsahin, S. Kalecik, O. Toker, Y. Kurucu, O. Icelli
Summary: Researchers have long been searching for different methods to determine the effective atomic number of materials, but existing methods have limitations. This study proposes a practical simulation method that considers all parameters in a virtual environment, and its results are in good agreement with other methods.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
S. Al-Omari, F. Afaneh, R. A. Elsad, Y. S. Rammah, Z. Y. Khattari
Summary: This study investigates the indirect influence of temperature on the radiation attenuation capabilities of berlinite by examining its intrinsic parameters and crystal structure modulations.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Lucas Tasinato, David Tisseur
Summary: The paper proposes a method for the on-line reconstruction of the Bremsstrahlung spectrum by measuring the energy deposited in a scintillator irradiated on its edge. The method is implemented using Tikhonov regularization and allows for a multi-parametric study to optimize the choice of scintillator and acquisition system for on-line measurement.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Mohamed Y. Hanfi, Ahmed E. Abdel Gawad, Atef M. Abu-Donia, Hanaa A. Abu Khoziem, Hamed I. Mira, Mayeen Uddin Khandaker, Mohammed S. Alqahtani, A. Sh. M. Elshoukrofy
Summary: This study investigates the presence of radioactive minerals and their impact on the radioactive hazards in Um Safi rhyolite flow tuffs. The results indicate that the activity concentration of radionuclides exceeds the recommended limit, making these rocks unsafe for use in construction materials. A positive correlation is observed between uranium and thorium concentrations, as well as between potassium and all radiological parameters.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Seung-Hwan Oh, Junhwa Shin, In-Tae Hwang, Joon-Yong Sohn, Seok-In Na, Chan-Hee Jung
Summary: Conductive graphitic carbon films were fabricated from insulating polystyrene (PS) and used as a transparent anode for organic solar cells (OSCs). The films exhibited thickness-dependent conductivity, while their work function and surface roughness remained unchanged. Introducing the graphitic carbon films into OSCs resulted in a power conversion efficiency of 1.40%.
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
Ivan Shchus, Daniil A. Tyurin, Vladimir I. Feldman
Summary: The radiation-induced transformations of isolated dimethyl disulphide molecules in a solid argon matrix were studied using FTIR spectroscopy at 4.5 K. Decomposition was found to be efficient, with a radiation-chemical yield of 4.5 molecules per 100 eV. Two primary channels, yielding CH3SH plus H2CS and CH4 plus H2CSS, were identified during radiolysis. Prolonged radiolysis led to the appearance of various secondary products. The spectroscopic characteristics of these observed products and their implications are discussed.
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
J. M. Maia, R. M. Curado da Silva, J. Mingacho
Summary: Terrestrial Gamma-ray Flashes (TGFs) are intense and fast gamma-ray emissions generated within the Earth's atmosphere. This study estimates the effective doses of TGFs gamma-ray emissions and examines the dependence on energy spectrum models and atmosphere mass thickness. The findings highlight the potential threat posed by TGFs to aircraft passengers and crew in terms of radiation exposure.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Samia Ladjouzi, Lakhdar Guerbous
Summary: In this study, nanocomposite hydrogels based on PVA/ZrO2NPs/Eu3+ were prepared and their physical and optical properties were modified by gamma irradiation.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Ferdi Akman, Hasan Ogul, Mehmet Fatih Turhan, Cansu Seyma Agrili
Summary: In this study, the interaction of X-rays and gamma rays with different materials used in dental braces was comprehensively analyzed using advanced simulation codes and theoretical calculations. The results highlight that elgiloy alloy demonstrates the highest attenuation of X-ray and gamma ray intensities. This research offers valuable insights into the behavior of dental braces when exposed to ionizing radiation, with potential implications for patient safety and diagnostic accuracy in dental radiology.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
E. Teimoory, M. Athari Allaf, J. Mokhtari, M. H. Choopan Dastjerdi
Summary: In this research, two fission chamber neutron detectors were designed and constructed to evaluate their performance in a radiation field. The detectors consist of stainless steel cylinders with anode and cathode, where the anode is coated with a thin layer of uranium-235 oxide and filled with a mixture of argon and nitrogen gas. The results showed that both detectors have a suitable linear response in the tested neutron flux range.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Nikola Jovancevic, David Knezevic, Miodrag Krmar, Dimitrije Maletic, Alexey Zhemchugov, Milomir Milakovic
Summary: This work explores the possibility of assessing high energy bremsstrahlung spectrum through photonuclear reactions. Experimental and simulation results were compared to determine the accuracy of the method.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Leticia Irazola, Veronica Moran, Evangelina Martinez-Frances, Leticia Soria, Pablo Cabello, Miguel Garcia-Cutillas, P. Borja Aguilar-Redondo, J. Diego Azcona-Armendariz, Rocio Bermudez, Josep M. Marti-Climent
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Osman Vefa Gul
Summary: This study evaluated the out-of-field doses at different depths relative to the beam center axis using five high-energy electron beams and four commonly used electron applicators. The results showed a significant reduction in out-of-field doses as the distance and depth to the field edge increased. The study also found that the out-of-field dose did not always decrease linearly with distance but depended on the applicator and depth. It is recommended that out-of-field doses be considered in electron treatments.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Tharange Lakmal, Manuja Lamabadusuriya, Duminda Satharasinghe, Rasuni Thilakshika, Aruna Pallewatte, Jeyasingam Jeyasugiththan
Summary: This study aims to evaluate the radiation dose from both PET and CT components and establish diagnostic reference levels (DRLs) for dose optimization in PET-CT procedures. The results indicate that the levels of injected activity for adult patients in Sri Lanka are lower than internationally published levels, but dose optimization is required for procedures involving both PET and CT in pediatric patients.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Hicham Satti, O. El Hajjaji
Summary: OpenNode is an advanced reactor core simulation tool designed for educational purposes. It solves complex neutron diffusion equations in multi-group scenarios, achieving a balance between computational efficiency and accuracy. With its intuitive graphical interface, it offers users a user-friendly experience and versatility in solving problems in both 2D and 3D geometries.
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
Sergey A. Vyrko, Yulia G. Polynskaya, Nikita A. Matsokin, Andrey M. Popov, Andrey A. Knizhnik, Nikolai A. Poklonski, Yurii E. Lozovik
Summary: In this study, carbon nanobracelets, which are cyclic molecules composed of alternating polycyclic regions and double carbon chains, were investigated using spin-polarized density functional theory. The results show that carbon nanobracelets with odd number of monomers exhibit distinct electronic energy levels, band gaps, and carbon chain deformation compared to those with even number of monomers.
CHEMICAL PHYSICS LETTERS
(2024)
