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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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.
Li Mao, J. C. Nimal
Nuclear Science and Engineering | Volume 136 | Number 3 | November 2000 | Pages 409-414
Technical Note | doi.org/10.13182/NSE00-A2169
Articles are hosted by Taylor and Francis Online.
The non-equally-probable step-function (NEPSF) representation has been proposed as a new method for selecting scattering angles from a multigroup transfer matrix for a medium of a single nuclide or a mixture. This technique avoids the disadvantage of the equally-probable step-function representation, which cannot well present the group-to-group transfer lax for a mixture. Similar to the discrete angle representation, the NEPSF representation can preserve precisely the moments of the scattering law; moreover, it has the advantage of eliminating ray effects. We give semianalytical procedures for obtaining P3 and P5 NEPSF representations, which will facilitate greatly low-order transfer matrix treatment in multigroup Monte Carlo.