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Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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.
Tadashi Yoshida, Jun-ichi Katakura
Nuclear Science and Engineering | Volume 93 | Number 2 | June 1986 | Pages 193-203
Technical Paper | doi.org/10.13182/NSE86-A17668
Articles are hosted by Taylor and Francis Online.
The beta-delayed emission process of gamma rays was treated with a gross theory of beta decay and a cascade gamma transition model. The method proposed was applied to calculations of the delayed gamma-ray energy spectra for short-lived fission product nuclides that lack experimental information on their gamma-ray transition properties. The calculated results were used to complement the summation calculation of the aggregate gamma-ray spectrum from an irradiated sample of fissile material after a short cooling time. A satisfactory agreement was obtained between the calculated and the measured spectra, which supported the appropriateness of the coupled gross beta and cascade gamma model. The method was also applied to the calculation of the equilibrium energy spectrum of the delayed gamma rays in operating reactors. The resulting shape resembles the prompt fission-gamma-ray spectrum.