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Mathematics & Computation
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
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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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.
L. Hjärne, M. Leimdörfer
Nuclear Science and Engineering | Volume 24 | Number 2 | February 1966 | Pages 165-174
Technical Paper | doi.org/10.13182/NSE66-A18301
Articles are hosted by Taylor and Francis Online.
A new approach is presented in the formulation of removal-diffusion theory. The removal cross section is redefined and the slowing down between the multigroup diffusion equations is treated with a complete energy-transfer matrix rather than in an age theory approximation. The method, based on the new approach, contains an adjustable parameter. Examples of neutron spectra and thermal flux penetrations are given in a number of differing shield configurations, and the results compare favorably with experiments and Moments-Method calculations.
