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Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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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.
G. J. Safford, W. W. Havens, Jr., B. M. Rustad
Nuclear Science and Engineering | Volume 6 | Number 5 | November 1959 | Pages 433-440
Technical Paper | doi.org/10.13182/NSE59-A25682
Articles are hosted by Taylor and Francis Online.
The absolute value of the total neutron cross section of U235 was measured for neutrons in the energy range 0.000818 to 0.0818 ev for two types of samples, metallic foils and D2O solutions of uranium. Balanced solutions of U235O2(NO3)2 and U238O2(NO3)2 were used to determine the difference between the total cross sections of U235 and U238. This value when combined with the relatively small, known value of the total cross section for U238 gives σT(U235) = 695.0 ± 1.8 barns at 0.0253 ev. The measurements on the metallic U235 foils agreed with the measured total cross section determined from the liquid solution data to better than 1%, yielding σT(U235) = 698.7 ± 4.7 barns at 0.0253 ev. The measured value of the U235 total cross section at 0.00291 ev combined with the scattering cross section, a recent precise value of (1 + α) at 0.00291 ev, and the ratio σf (0.0253 ev)/σf (U235) = 590.8 ± 5.4 barns at the standard neutron energy of 0.0253 ev.
