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Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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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.
R. C. Lloyd, S. R. Bierman, E. D. Clayton
Nuclear Science and Engineering | Volume 55 | Number 1 | September 1974 | Pages 51-57
Technical Paper | doi.org/10.13182/NSE74-A23965
Articles are hosted by Taylor and Francis Online.
Results are presented from a series of criticality experiments with homogeneous plutonium-uranium fuel mixtures with plutonium content in the range of 5 to 8 wt%. The H:(Pu+U) atomic ratios covered a range from 19.5 to a high of 80.7: the experiments provide data in the region of moderation where the minimum critical volume occurs for homogeneous plutonium-uranium systems with a plutonium content of 8 wt%. The minimum critical spherical radius for material containing 8 wt% Pu in PuO2-UO2-water mixtures was determined to be 14.98 cm., The criticality factors were computed with neutron transport theory and Monte Carlo calculations, using the DTF-IV and the KENO-II codes with both ENDF/B-II and ENDF/B-III version cross sections. The calculated values were found to be within ±2% of unity.