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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.
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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.
Ahmed Badruzzaman, James Biffer, Tahmina Badruzzaman, Martin Becker
Nuclear Science and Engineering | Volume 79 | Number 1 | September 1981 | Pages 124-140
Technical Note | doi.org/10.13182/NSE81-A19050
Articles are hosted by Taylor and Francis Online.
The continuous slowing down integral transport theory has been extended to perform criticality iteration with fuel-depletion analysis for evaluating exposure-dependent spectral transitions in fast reactor core-blanket systems. The theory was applied to conventional and heterogeneous configurations, obtaining excellent predictions of the eigenvalue and the spectra. The results indicate the importance of space-dependent analysis involving considerable energy detail. The initial value energy considerations of the theory are the principal advantage in data processing and group collapse procedures requiring such detail. Several simplifying features were observed, further enhancing the advantages of the present method. The transport theory sophistication was attained without significant penalty as the spatial probabilities varied weakly with exposure. Similar insensitivity of the slowing down parameters and resonance self-shielding factors provide substantial savings in computer running time. Nonvariation of these parameters had small effects on fuel cycle characteristics. An analytical solution of the depletion equations was obtained based on the observed weak exposure variation of important microscopic reaction rates. The space-dependent slowing down theory as generalized here is thus shown to be an attractive tool for incorporating the required space-energy detail in a comprehensive fast reactor fuel cycle analysis.