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The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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.
A. B. Smith
Nuclear Science and Engineering | Volume 18 | Number 1 | January 1964 | Pages 126-129
Technical Paper | doi.org/10.13182/NSE64-A18149
Articles are hosted by Taylor and Francis Online.
The differential cross section for the elastic scattering of neutrons from U235 was measured at ∼ 50-keV intervals throughout the incident neutron energy range 0.3 to 1.5 MeV. Pulsed-beam time-of-flight techniques were employed to resolve the elastically scattered neutrons from those inelastically scattered and from the spectrum of fission neutrons. The experimental resolution extended from ∼ 25 to ∼ 65 keV at respective neutron energies of 0.3 and 1.5 MeV. All neutrons incurring an energy loss at the time of scattering, equal to or less than the respective resolution function, were considered “elastically” scattered. The experimental results were expressed in the form where σ(el) is the total elastic cross section, Pi are Legendre polynomials, and Wi are experimentally determined coefficients. The elastic transport cross section was derived from the measurements.