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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Keeping up with Kewaunee
In October 2012, Dominion Energy announced it was closing the Kewaunee nuclear power plant, a two-loop 574-MWe pressurized water reactor located about 27 miles southeast of Green Bay, Wis., on the western shore of Lake Michigan. At the time, Dominion said the plant was running well, but that low wholesale electricity prices in the region made it uneconomical to continue operation of the single-unit merchant power plant.
Walter A. Hackler, Chihiro Kikuchi
Nuclear Science and Engineering | Volume 31 | Number 2 | February 1968 | Pages 175-182
Technical Paper | doi.org/10.13182/NSE68-A18229
Articles are hosted by Taylor and Francis Online.
The effects of fast-neutron and electron-induced defects on the diffusion properties of lithium in silicon have been studied. Lithium-diffused diodes were irradiated and later drifted with reverse bias at a constant temperature. Results show that fast-neutron and 0.9-MeV electron induced vacancies provide sites for the precipitation of lithium. Moreover, the lithium vacancy precipitate behaves like a solute in equilibrium with ions and ionized vacancies. The analysis of the lithium vacancy precipitate in this manner is analogous to the analysis of slightly soluble salts in water. The lithium diffusion coefficient for silicon exposed to fast neutrons, NN = 1.1 to 2.7 × 1014 n/cm2, can be expressed The range of (T) in the above expression is from 300 to 410°K. In addition, the lithium diffusion coefficient for silicon exposed to 0.9-MeV electrons, NE = 5 × 1015 to 3.3 × 1016 electrons/cm2 can be represented by The range of (T) in the above expression is from 300 to 330°K. Relative radiation damage between neutron and electrons was found to be in reasonable agreement with predictions based on radiation damage theory.