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Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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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.
André Mackel
Nuclear Science and Engineering | Volume 22 | Number 3 | July 1965 | Pages 339-349
Technical Paper | doi.org/10.13182/NSE65-A20938
Articles are hosted by Taylor and Francis Online.
Reflection and transmission of monoenergetical particles with a known ingoing distribution by a strongly absorbing slab is studied from the numerical standpoint. Various approximation methods based on known theoretical solutions are presented: in section III we propose an approximation based on Chandrasekhar X and Y functions; in section IV we obtain the reflection and transmission by using a variational technique, and we show that a successive-collision technique gives identical results; and in section V we propose a diffusion-like approximation, with adjusted coefficients, of the form The first approximation gives good results for low c values; the second one, for high c values. The diffusion-like approximation, however, is accurate to more than 2% for all values of c between 0.1 and 0.9. Moreover it is far easier to compute than any of the former ones.