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Division Spotlight
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
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.
Sadao Uchikawa
Nuclear Science and Engineering | Volume 85 | Number 1 | September 1983 | Pages 36-44
Technical Paper | doi.org/10.13182/NSE83-A17149
Articles are hosted by Taylor and Francis Online.
A procedure for numerically solving neutron diffusion equations in two-dimensional multiconnected regions with arbitrarily shaped boundaries is developed by using a boundary-fitted curvilinear coordinate transformation. The equation is solved in the transformed rectangular coordinate system where some of the straight coordinate lines represent the boundaries, so that the boundary conditions are represented accurately. Features of the present solution include the automatic generation of coordinate grids, as well as geometric versatility. It can be applied to nuclear design calculations for all types of reactors.