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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.
M. Segev
Nuclear Science and Engineering | Volume 79 | Number 1 | September 1981 | Pages 113-118
Technical Note | doi.org/10.13182/NSE81-2
Articles are hosted by Taylor and Francis Online.
Equivalence principles reduce the lattice resonance integral of an absorber to I(σ), a resonance integral of the absorber in a homogeneous mixture with hydrogen, where σ is a microscopic cross section determined by the equivalence approximation. In practice, usually I(σ) is not a densely tabulated function; therefore, the need for an adequate σ interpolation arises. Two such interpolation schemes are found to be inaccurate for high and/or low σ values: the WIMS code interpolation , where a and b are determined from two tabulation entries I(σ2), I(σ2), and the 1DX code interpolation 1(σ) = I(∞) × (1 + A{tanh[B ln(σ) + C] − 1}), where A, B, and C are determined from three tabulation entries. The interpolation I(σ) = I(∞)[σ/(σ + η)]P is found to be accurate for all σ values. The determination of p and η involves solving a transcendental equation. An efficient technique for obtaining a numerical solution to the equation is given. In practice, the solution of the equation on a computer is virtually instantaneous.