Results 41 to 50 of about 6,408 (256)

Inverse modeling of the Chernobyl source term using atmospheric concentration and deposition measurements [PDF]

Atmospheric Chemistry and Physics, 2017
This paper describes the results of an inverse modeling study for the determination of the source term of the radionuclides 134Cs, 137Cs and 131I released after the Chernobyl accident.
N. Evangeliou, T. Hamburger, T. Hamburger, A. Cozic, Y. Balkanski, A. Stohl   +5 more
doaj   +1 more source

Efficiency calibration and coincidence summing correction for a NaI(Tl) spherical detector

Nuclear Engineering and Technology, 2021
Spherical NaI(Tl) detectors are used in gamma-ray spectrometry, where the gamma emissions come from the nuclei with energies in the range from a few keV up to 10 MeV.
Salam F. Noureddine, Mahmoud I. Abbas, Mohamed S. Badawi   +2 more
doaj   +1 more source

Multiscale Coupling From Mastication to Retronasal Aroma Perception: The PG‐DTCFN Model and Multiphysics Simulation

Advanced Science, EarlyView.
Using grilled lamb skewers as a model system, this work builds a multiscale coupling framework from oral processing to retronasal aroma perception, reveals dual‐kinetic release patterns and Electroencephalogram‐characterized central encoding features, and proposes an interpretable physics‐guided deep learning model validated by multiphysics simulation,
Che Shen, Xiongfeng He, Zihao Li, Zidong Chen, Jiajin Sun, Xinyu Jiang, Yunhui Zhang, Lizhang Wu, Ran Wang, Jingnan Lu, Bo Wang, Kezhou Cai, Baocai Xu   +12 more
wiley   +1 more source

Analysis of typical atmospheric emissions from light-water NPPs for regulatory purposes

Nuclear Engineering and Technology
Background: Regulating radioactive atmospheric emissions from nuclear power plants (NPPs) requires focusing on key dose-contributing radionuclides. A universal, typical radionuclide vector would simplify monitoring but its feasibility remains unproven ...
A.V. Vukolova, A.P. Dolgikh
doaj   +1 more source

Evidence for the radioactive decay of 226Ra by 14C emission

Physics Letters B, 1985
Using a magnetic spectrometer and an intense 226Ra source, first evidence for the radioactive decay of 226Ra by 14C emission was obtained leading to a measured branching ratio relative to α-particles of (3.2±1.6)×10−11. In addition, the decay of 222Ra by 14C emission, previously reported, was clearly observed and an upper limit was set for the emission
Hourani, E., Hussonnois, M., Stab, L., Brillard, L., Gales, S., Schapira, J.P.   +5 more
openaire   +1 more source

CA9‐Targeted PET Imaging for Noninvasive Discrimination of Clear Cell Renal Cell Carcinoma and Associated Tumor Biological Features

Advanced Science, EarlyView.
CA9‐targeted PET imaging could be a noninvasive approach to characterize clear cell renal cell carcinoma and associated tumor biology. PET uptake correlates with tumor CA9 expression and is linked to angiogenic activity, immune remodeling, and metabolic reprogramming.
Kailei Chen, Sixuan Cheng, Jian Shi, Ruijie Liu, Yilong Wu, Xin Zheng, Xinlun Song, Yunxuan Zhang, Lei Liu, Zhihao Wei, Qi Wang, Xinwei Li, Zirui Dong, Yuenan Liu, Hongmei Yang, Xiaoli Lan, Chunxia Qin, Dawei Jiang, Keshan Wang, Xiaoping Zhang   +19 more
wiley   +1 more source

Analysis of carbon‐14 discharges from Korean nuclear power plants

Energy Science & Engineering
The routine practice accompanying the operation of nuclear facilities involves the discharge of radioactive effluents from nuclear power plants (NPPs). Regulation of this discharge to the environment hinges on three criteria: radioactivity concentration,
Hwapyoung Kim, Tae Young Kong, Seongjun Kim, Jinho Son, Changju Song, Jiung Kim, Hee Geun Kim   +6 more
doaj   +1 more source

14C Research at the Laboratory for the Analysis of Radiocarbon with AMS (LARA), University of Bern

CHIMIA, 2020
The Laboratory for the Analysis of Radiocarbon with AMS (LARA) at the University of Bern measures the radioactive carbon isotope 14C with accelerator mass spectrometry (AMS) in different applications.
Sönke Szidat
doaj   +1 more source

Enhancement of low-energy electron emission in 2D radioactive films [PDF]

Nature Materials, 2015
High-energy radiation has been used for decades; however, the role of low-energy electrons created during irradiation has only recently begun to be appreciated. Low-energy electrons are the most important component of radiation damage in biological environments because they have subcellular ranges, interact destructively with chemical bonds, and are ...
Alex Pronschinske, Philipp Pedevilla, Colin J. Murphy, Emily A. Lewis, Felicia R. Lucci, Garth Brown, George Pappas, Angelos Michaelides, E. Charles H. Sykes   +8 more
openaire   +3 more sources

Solvent Oxidation‐Directed Synthesis of Highly Crystalline Iron Oxide Nanoparticles With Near‐Bulk Magnetization

Advanced Science, EarlyView.
Controlled oxidation of benzyl ether is established as a key synthetic parameter in the thermal decomposition of iron(III) acetylacetonate. Oxygenated solvent species alter precursor coordination and nucleation–growth kinetics, producing highly crystalline, magnetite‐rich nanoparticles with tunable size, controlled morphology, and near‐bulk ...
Lukas Hertle, Valentin Gantenbein, Joaquim Llacer‐Wintle, Mingchen Ma, Ziyu Li, Pu Luo, Zhengwei Tan, Fei Chen, Chen Chen, Chuanyi Wu, Chenxin Gao, Chenyi Zhou, Carlos Franco, Pere Bruna, Josep Puigmartí‐Luis, Xiang‐Zhong Chen, Bradley J. Nelson, Salvador Pané   +17 more
wiley   +1 more source