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
Nuclear Science & Technology
Shuai Chen, Zehuan Zhang, Tao Qing, Li Zhang
Summary: This study develops a dependency analysis method for HFEs in Level 2 PSA, filling a research gap in this field and being of great significance for accurately evaluating the risk level of nuclear power plants.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
Lanfei Yuan, Zhipeng Liu, Chenglong Wang, Wenxi Tian, Suizheng Qiu, G. H. Su
Summary: In this study, the flow and heat transfer of lead-bismuth eutectic (LBE) under moving conditions were investigated using a sliding mesh method. Experimental validation was conducted, showing good agreement with the numerical model. The results reveal that the flow rate fluctuation is consistent with the motion period, with the amplitude increasing as the maximum range of motion increases and the motion period decreases. Rolling has a more severe influence on system parameters compared to heaving.
ANNALS OF NUCLEAR ENERGY
(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
Nuclear Science & Technology
Xiao Luo, Kefan Zhang, Junjia Zhang, Rui Pan, Aoguang Wu, Shuai Wang, Hongli Chen
Summary: With the advancement of high-performance computing technology, it is now possible to conduct pin-by-pin thermal-hydraulic simulations. Various parallelization and optimization strategies have been proposed and implemented to expedite the analysis process.
ANNALS OF NUCLEAR ENERGY
(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
Nuclear Science & Technology
Gui Zhou, Min -jun Peng, Hang Wang
Summary: This study presents a novel deep learning method for accurately predicting the break size of loss of coolant accidents. By leveraging data augmentation and optimization, this method combines CNN and LSTM networks within a hybrid architecture to accurately extract both spatial and temporal information from limited sample data. The proposed method is evaluated through comparative analysis and testing on multiple cases, demonstrating its superior prediction accuracy.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
A. Bousbia Salah, M. Di Giuli, P. Foucaud, R. Iglesias, A. Malkhasyan, M. Salmaoui, L. E. Herranz
Summary: In the framework of the R2CA project, the application of advanced codes for evaluating radiological release under design basis accidents was considered. The study focused on a specific scenario and assessed the results obtained by different organizations using different computational tools and approaches. The outcomes highlighted modeling differences and challenges in carrying out such analysis.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
M. Hadouachi, H. Boukhal, El. Chakir, O. Belhaj, K. Laazouzi, H. El Yaakoubi, Abdelhamid Nouayti, T. El Ghalbzouri
Summary: In nuclear reactor physics, there are biases and uncertainties in the estimation of integral quantities using calculation codes. Conducting sensitivity/uncertainty analysis helps understand the propagation of uncertainties and identify isotopes and reactions that contribute to the uncertainties in integral parameters.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Instruments & Instrumentation
B. Kronheim, A. Belloni, T. K. Edberg, S. C. Eno, C. Howe, C. Palmer, C. Papageorgakis, M. Paranjpe, S. Sriram
Summary: This paper presents measurements of the relative decrease of light output during irradiation of small plastic scintillator tiles read out by silicon photomultipliers. The study found substantial temporary damage during low-temperature irradiation, regardless of oxygen concentration and wrapping material. The wrapping material had an impact on the relative light loss, with the 3M(TM) Enhanced Specular Reflector Film showing the largest loss. The light loss was less at warmer temperatures and similar to that in standard atmosphere with 3% oxygen concentration. Evidence of a plateau in the radical density was seen for the data at 0 degrees C.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(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
Instruments & Instrumentation
Kevin Nash
Summary: This article discusses the need for extensive upgrades of the LHC detectors, particularly the Outer Tracker, due to the demanding conditions and radiation of the High Luminosity LHC scenario. The design choices, technological approaches, and R&D activities for the Outer Tracker Phase-2 upgrade are highlighted.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
R. Cardarelli, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciaccio, L. Di Stante, B. Liberti, E. Pastori, L. Pizzimento, G. Proto
Summary: The Resistive Cylindrical Chamber (RCC) is a new generation of gaseous particle detectors that overcome the limitations of Resistive Plate Chambers (RPC) and expand their application range. By transitioning from planar to cylindrical geometry, while maintaining an almost planar electric field, the RCC achieves improved detection efficiency, increased gas pressure, and the possibility of using eco-friendly gases.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Chemistry, Physical
Neha Bansal, Geetanjali Jagdeva, Sohan Lal, Sanjiv Arora
Summary: Gamma radiation technology is widely used to modify the properties of natural fiber reinforced polymer composites. In this study, composites of recycled-polypropylene reinforced with bio-waste Delonix regia pods were prepared and irradiated with gamma dose. The effects of different fiber loadings and gamma doses on the mechanical properties were investigated. The results showed that both Delonix regia and gamma dose had a positive influence on the properties of the composites.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Beriham Basha, Mine Kirkbinar, Khadijah Mohammedsaleh Katubi, Erhan Ibrahimoglu, Fatih Caliskan, I. O. Olarinoye, Halil Arslan, Sultan J. Alsufyani, M. S. Al-Buriahi
Summary: This study examines the shielding properties of CRT screen glass and Bi2O3 mixtures for radiation protection, and identifies TVS-Bi20 as a low-cost, transparent, and environmentally safe glass shield material.
RADIATION PHYSICS AND CHEMISTRY
(2024)
