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Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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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.
D. Kwiat
Nuclear Science and Engineering | Volume 76 | Number 2 | November 1980 | Pages 255-257
Technical Note | doi.org/10.13182/NSE76-255
Articles are hosted by Taylor and Francis Online.
It is known that, based on Wigner's rational approximation, the escape probability function can be improved by the insertion of geometry dependent constants. Bonalumi improved this method by replacing these constants by a function. The formulas derived here, based on general considerations, justify the form given by Bonalumi and generalize it to spheres as well. The results for a cylinder and a sphere are compared to the exact tabulated values, and show an error of <0.3% through the whole spectral region. Only one parameter is needed here. The method is shown to be insensitive to this parameter to a certain extent. Comparison is also made with the results achieved by the P0 + AP2 method. The treatment here is limited to an isolated lump, for cylinders and spheres only.