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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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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.
L. E. Beghian, A. E. Profio, J. Weber, S. Wilensky
Nuclear Science and Engineering | Volume 17 | Number 1 | September 1963 | Pages 82-90
Technical Paper | doi.org/10.13182/NSE63-A17213
Articles are hosted by Taylor and Francis Online.
Nanosecond bursts of monoenergetic neutrons in the 1 Mev range are injected into various size assemblies of iron. The flux in these assemblies is observed to decay exponentially with characteristic nanosecond decay constants (λ). λ is shown to be composed of a sum of terms which represent loss of neutrons by leakage and through energy degradation by both nonelastic and elastic scattering. The sum of these two last effects can be represented by a total removal cross section which can be determined by measuring λ as a function of assembly size. A theoretical development is given for calculating the contribution to this total cross section due to elastic scattering; hence the total nonelastic cross section can be determined. Nonelastic cross sections for iron have been measured by this technique in the range of primary neutron energies 0.8–1.5 Mev.