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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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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.
D. C. Leslie, J. G. Hill
Nuclear Science and Engineering | Volume 26 | Number 2 | October 1966 | Pages 222-229
Technical Paper | doi.org/10.13182/NSE66-A28164
Articles are hosted by Taylor and Francis Online.
In resonance capture calculations, it is usual to assume that the capture in any one resonance is unaffected by the existence of other resonances: this is known as the “flux recovery” assumption. This assumption is exact for hydrogenous moderation in a homogeneous situation. However, in highly heterogeneous lattice cells such as that of the Steam Generating Heavy Water Reactor (SGHW), in which the fuel is intimately associated with a powerful moderator, the resonance flux in the fuel is depressed below that in the bulk moderator. In this paper, this flux depression effect is investigated by using a model in which all moderation is hydrogenous and the resonances are square. This model suggests that the flux recovery assumption will overestimate 238U capture in a typical SGHW Lattice by about 5%.
