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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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.
P. E. Labeau, Z. Ould Amar
Nuclear Science and Engineering | Volume 126 | Number 2 | June 1997 | Pages 146-157
Technical Paper | doi.org/10.13182/NSE97-A24468
Articles are hosted by Taylor and Francis Online.
Monte Carlo games especially designed for probabilistic dynamics problems have been shown to be very efficient for the calculation of a pressurized water reactor (PWR) pressurizer unreliability. However, these methods rely on the implicit hypothesis that transition rates and probabilities, as well as control means response times, can be precisely determined. But reality is different: Because of a lack of knowledge, only crude estimations of transition rates can be obtained. Moreover, control device response times cannot be assumed constant for rapid transients. Therefore, considering distributed values of these quantities seems more realistic. Several attempts to take into account these uncertainties, while conserving as many advantages as possible of the high-efficiency simulation techniques, are summarized. The PWR pressurizer application is used to compare the capabilities of the proposed methods.