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Nuclear Science and Engineering
Fusion Science and Technology
China on course to lead in nuclear by 2030, says IEA
China will have the world's largest nuclear power fleet within a decade, an International Energy Agency official noted during a session at the High-Level Workshop on Nuclear Power in Clean Energy Transitions, World Nuclear News reported on March 3.
The workshop was held jointly by the IEA and the International Atomic Energy Agency.
The IEA official, Brent Wanner, head of Power Sector Modelling & Analysis for the agency's World Energy Outlook publication, said that as nuclear fleets in the United States, Canada, and Japan reach their original design lifetimes, decisions will have to be made about what will happen after that. Absent license renewals, the contribution of nuclear power could decline substantially in those countries while China’s reactor building program will boost it into the first position.
J. E. Rice, J. L. Terry, K. B. Fournier, E. S. Marmar
Fusion Science and Technology | Volume 51 | Number 3 | April 2007 | Pages 451-459
Technical Paper | Alcator C-Mod Tokamak | dx.doi.org/10.13182/FST07-A1432
Articles are hosted by Taylor and Francis Online.
The Rydberg series (1s2 to 1snp) up to n = 14 of helium-like argon (Z = 18) has been observed from Alcator C-Mod plasmas using a high-resolution X-ray spectrometer array. High-n satellites to these lines of the form 1s22s to 1s2snp and 1s22p to 1s2pnp with 3 n 12 have been recorded. X-ray spectra of 2l - nl' transitions with 3 n 18 in molybdenum (Z = 42) and 3 n 12 in krypton (Z = 36) and niobium (Z = 41) from charge states around neon-like have also been measured. Numerous examples of the configuration interaction, which alters the line intensities in some transitions of neon-like ions with nearly degenerate upper levels, have been observed. Accurate wavelengths of all of these transitions (±0.5 mÅ) have been determined by comparison to neighboring reference lines from H- and He-like charge states. Line identifications have been made by comparison to ab initio atomic structure calculations, using a fully relativistic, parametric potential code. Measured line intensities have been compared with collisional radiative modeling that includes the contributions from dielectronic recombination and inner shell excitation rates, with good agreement.