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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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Latest News
New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
James T. Waber, Mary Repar Kline, Leah K. Johnson
Nuclear Science and Engineering | Volume 4 | Number 3 | September 1958 | Pages 341-353
Technical Paper | doi.org/10.13182/NSE58-A25533
Articles are hosted by Taylor and Francis Online.
The effect of alloying on the amount of plutonium required in forming a critical mass of each alloy has been expressed in terms of an inventory requirement ratio, RI. This quantity was obtained for twenty-seven potential alloying elements at three compositional levels. The effectiveness of using Vegard’s law to estimate the density of the alloys was appraised by comparing the estimated densities and RI values of nine intermetallic compounds with their x-ray densities and the RI values computed from them. The parametric variation of RI with fT, the number of excess neutrons per collision was also studied.