Article
Nuclear Science & Technology
Ao Zhang, Qingye Li, Chaoyong Zong, Fuwen Liu, Tianhang Xue, Jian Xiao, Xueguan Song
Summary: In this study, a high-fidelity computational fluid dynamics model was established to investigate the flow characteristics of a novel balanced globe valve. The study found that the size of the throttle orifice and valve disc displacement have a significant impact on fluid force. The findings provide a basis for the design and dynamic control of globe valves, and also have potential value for energy utilization.
ANNALS OF NUCLEAR ENERGY
(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
Nuclear Science & Technology
Shuhang Zhou, Jianfa Li, Peixun Yang, Haozhi Bian, Ming Ding
Summary: In this study, the influence of curvature and inclination on steam-air condensation characteristics was investigated through numerical simulations, and an inflection point in the influence of inclination effect on condensation characteristics was discovered. With the change of curvature, the effect of inclination angle on condensation capability also reverses.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Materials Science, Multidisciplinary
Shihao Wu, Dong Wang, Yapei Zhang, Koji Okamoto, Marco Pellegrini, Wenxi Tian, Suizheng Qiu, G. H. Su
Summary: The oxidation and degradation mechanisms of Cr coating on Zr alloy cladding under high temperature steam atmosphere are summarized, and a mathematical analysis model is established to predict the changes in coating thickness. The model is applied in the analysis of structure evolution under different conditions.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Nuclear Science & Technology
Aigen Xie, Yi-fan Liu, Hong-Jie Dong
Summary: This paper presents a theoretical model for backscattered electron emission (BEE) and derives universal formulas for certain parameters within a specific energy range. These formulas can be used to calculate the backscattering coefficient and the maximum penetration depth distribution of backscattered electrons for different metals.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Chemistry, Physical
Yuta Yoshikawa, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida
Summary: In this study, Tl-doped NaI transparent ceramics with different doping concentrations were synthesized and their optical and scintillation properties were investigated. The 0.1% Tl-doped NaI sample showed the best optical and scintillation performance.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
H. Hashemi Jozani, M. Khorsandi, H. Jafari
Summary: Monitoring radioactive contamination and radiation type is crucial for protection. Phoswich detector is a useful tool to identify and separate different radiations. However, its design needs optimization for maximum efficiency.
RADIATION PHYSICS AND CHEMISTRY
(2024)
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
Nuclear Science & Technology
Hyungi Byun, Jong Dae Park, Sihyun An, Jinu Kim, Juyub Kim, Doo Yong Lee, Bongsoo Lee
Summary: In this study, a software called COSMOS has been developed with Artificial Intelligence models for site characterization. COSMOS has the capability to significantly reduce processing time, improve efficiency, and conduct comprehensive statistical tests, serving as a total solution for site characterization.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
Dandan Yin, Yunlong Zhou, Xintian Guo
Summary: This paper investigates the heat transfer characteristics of supercritical CO2/propane mixtures in a vertical tube and proposes new correlations to accurately predict the heat transfer trend. It is found that the addition of propane can reduce heat transfer deterioration and the proposed correlations have a maximum prediction deviation of +/- 14%.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
Minghua Luo, Jianwen Huo, Manlu Liu, Mingrun Ling, Xulin Hu
Summary: This paper proposes a distributed collaborative decision algorithm for multi-robot radioactive source search, which estimates the posterior probability distribution of source parameters using cognitive consistency and Gaussian parameter fusion. Experimental results show that the algorithm achieves a high success rate and short search time, reducing the risk of losing radioactive sources.
ANNALS OF NUCLEAR ENERGY
(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
Nuclear Science & Technology
Pingping Wang, Jiahua Chen
Summary: An improved residual network fault diagnosis model for spent fuel shearing machines is proposed in this study, which achieves higher diagnostic accuracy by improving the residual network with soft thresholding and pyramid squeezing attention, and fully utilizes multi-scale feature information.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
Donny Hartanto, Friederike Bostelmann, Benjamin R. Betzler, Kursat B. Bekar, Shane W. Hart, William A. Wieselquist
Summary: The study of simulation and the development of simulation tools for liquid-fueled nuclear reactor systems are crucial for enhancing safety, improving fuel-cycle outcomes, and achieving more efficient isotope production configurations.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
Tianbao Lan, Qian Ren, Feng Sheng, Wei Tan
Summary: The design and analysis of transport casks are crucial in the nuclear power industry, as they need to maintain integrity and tightness even after severe accidents. This study focused on key factors such as impact limiter design, assembly clearance, analysis model, environmental factors, dropping angle, and buffer materials' dispersion. Important conclusions were drawn regarding the design considerations and factors affecting the acceleration response.
ANNALS OF NUCLEAR ENERGY
(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
Nuclear Science & Technology
Y. Fontenla, A. Vidal-Ferrandiz, A. Carreno, D. Ginestar, G. Verdu
Summary: FEMFFUSION is an open source code that solves the multigroup neutron transport equation using the diffusion and the SPN approximations. It uses the finite element method to handle various geometries and problem dimensions, and has been verified against the C5G7 benchmark.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
A. de Lara, A. Schubert, E. Shwageraus, P. Van Uffelen
Summary: This study presents a new methodology to derive the radial form factor in the TRANSURANUS burnup model using simulations. The proposed methodology can be applied to different types of reactors, including LWRs and HWRs, and is suitable for advanced technology fuels.
ANNALS OF NUCLEAR ENERGY
(2024)
Article
Nuclear Science & Technology
Guangchun Zhang, Hu Zhang
Summary: In this study, a neutron transport code called TARS is introduced, which is based on the discrete-ordinates discontinuous finite element method. TARS provides accurate and efficient solutions to the neutron transport equation, addressing existing challenges in the field. The evaluation results demonstrate that TARS generates highly accurate solutions and achieves high parallel computation efficiency.
ANNALS OF NUCLEAR ENERGY
(2024)
