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Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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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.
J. M. Sicilian
Nuclear Science and Engineering | Volume 56 | Number 3 | March 1975 | Pages 291-300
Technical Paper | doi.org/10.13182/NSE75-2
Articles are hosted by Taylor and Francis Online.
Space-dependent reactor kinetics problems can be solved by response techniques in which subassemblies of the core (called cells) are treated as “black box” transducers of neutron currents. In this paper we present a continuous integral theory of space-time neutronics, reduce this theory to an approximate response-matrix method, and solve some monoenergetic one-dimensional problems.The principal advantage over more usual reactor kinetics methods is the achievement of accuracy with a coarse spatial grid. Previously, criticality calculations using response-matrix methods had established this principle. The present work extends the result to time-dependent situations.The author believes that development of the response-matrix technique can significantly reduce the computational effort required for solution, without loss of accuracy, of a broad class of space-time reactor problems.