ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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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Nuclear Science and Engineering
October 2024
Nuclear Technology
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August 2024
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.
Alan Staub, D. R. Harris, and Mark Goldsmith
Nuclear Science and Engineering | Volume 34 | Number 3 | December 1968 | Pages 263-274
Technical Paper | doi.org/10.13182/NSE68-A21091
Articles are hosted by Taylor and Francis Online.
A group of 11 aqueous critical experiments fueled by 233U and 235U and performed by Gwin and Magnuson have been analyzed to serve as integral tests of nuclear data important in reactor design. Measured eignvalues were corrected for various effects including the presence of the aluminum container, departures from sphericity, delayed-neutron importance, and room return. Eigenvalues were calculated in simplified P-3 approximation using 60 energy groups, and determinations were made of the eigenvalue uncertainties (±0.1%) associated with this treatment. Within the eigenvalue uncertainties (±0.25%) resulting from fuel inventories, it was concluded that fissile nuclide and H(n,γ) cross sections were adequate to match calculations and experiments but that there was evidence of erroneous nuclear data important in determining neutron leakage. In particular, a substantially harder 233U fission neutron spectrum seems to be indicated.