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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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.
Y. Ronen, D. Shvarts, J. J. Wagschal
Nuclear Science and Engineering | Volume 60 | Number 1 | May 1976 | Pages 97-101
Technical Note | doi.org/10.13182/NSE76-A26862
Articles are hosted by Taylor and Francis Online.
A comparison of the limitations of the eigenvalues for the effective neutron multiplication factor per neutron generation, k, the multiplication factor per collision, γ, and the fundamental multiplication rate, α, is presented as they concern the neutron spectrum and the spectral properties of the integral transport operators. Numerical examples of analyses of fastneutron plutonium systems are given. Advantages of the rarely used γ eigenvalue are discussed, leading to the main conclusion of this presentation that it should be used more often.
