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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.
Wolfgang Rothenstein
Nuclear Science and Engineering | Volume 8 | Number 2 | August 1960 | Pages 122-127
Technical Paper | doi.org/10.13182/NSE60-A25787
Articles are hosted by Taylor and Francis Online.
Detailed Monte Carlo studies of the resonance capture in the lowest U238 resonances have been made for uranium-water lattices and a uranium-graphite lattice. Direct comparison with calculated values is a good test of the validity of the assumptions made in obtaining the theoretical estimates. Good agreement is obtained for the over-all capture in a single resonance and for the energy distribution of absorptions. Monte Carlo tests have also shown that the asymptotic flux is fairly well re-established between the two strongest U238 resonances, and that the number of neutrons captured in this energy region is only slightly affected by Doppler broadening and interference between resonance and potential scattering. Finally the calculated resonance escape probability in a uranium-water lattice for 26 resolved resonances is compared with the Monte Carlo value. There is quite close agreement.