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
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.
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.
Yukio Ishiguro, Satoru Katsuragi, Masayuki Nakagawa, Hideki Takano
Nuclear Science and Engineering | Volume 40 | Number 1 | April 1970 | Pages 25-37
Technical Paper | doi.org/10.13182/NSE70-A18877
Articles are hosted by Taylor and Francis Online.
A new method has been proposed for the selection of a single resonance structure or ladder used for the calculation of the cross sections in the unresolved resonance region. This method is especially useful for fissile nuclides, where level spacings are quite narrow, and is capable of taking the rather complicated energy-variation of alpha values into consideration. By use of the present method, studies have been made of the cross sections of 235U, 238U, 239Pu, and 240Pu. For the construction of the cross sections of these nuclides, new evaluations have also been made of the average resonance parameters, which were used in generation of the ladders. The calculated results are shown to be a very good representation of the low-resolution experimental data.
