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Division Spotlight
Radiation Protection & Shielding
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.
Meeting Spotlight
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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Latest News
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.
W.F. Sheely
Nuclear Science and Engineering | Volume 29 | Number 2 | August 1967 | Pages 165-175
Technical Paper | doi.org/10.13182/NSE67-A18524
Articles are hosted by Taylor and Francis Online.
Expressions are developed for the rate of production of atomic displacements in iron by neutron spectra found in reactors. Factors considered include anisotropic, elastic high-energy neutron scattering, inelastic high-energy neutron scattering, thermal-neutron capture-gamma recoil-induced displacements, and energy loss by electronic excitation. An evaluation of calculated atomic displacement density as a measure of radiation damage to steel was made by determining if this approach could rationalize the differences in damage rate produced by different reactor spectra. It was found that available data on radiation-induced property changes could be satisfactorily normalized to a common basis by expressing exposure as displacement density when all the above-mentioned factors are given consideration.