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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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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.
Joseph J. Devaney
Nuclear Science and Engineering | Volume 51 | Number 3 | July 1973 | Pages 272-277
Technical Paper | doi.org/10.13182/NSE73-A26605
Articles are hosted by Taylor and Francis Online.
The importance of the multiple reaction correction to cross sections above ∼0.1 MeV is demonstrated by deriving a simple formula for a thin-slab sample utilizing a limited multigroup, spatially averaged, transport theory, and applying the formalism to a few examples. To illustrate the immediate relevance of the correction, we also apply it to revise an important cross section in current use, (238U σ nγ, ENDF/B-III). The correction can be large with thicker samples and at higher energies, especially for radiative capture (exceeding a factor of 10). Our examples indicate that multiple reaction effects must be checked in measuring or evaluating radiative capture, fission, reaction, and gamma production cross sections and their consequent spectra.