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Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
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.
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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August 2024
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.
F. E. Jablonski, R. S. Carter
Nuclear Science and Engineering | Volume 5 | Number 4 | April 1959 | Pages 257-263
Technical Paper | doi.org/10.13182/NSE59-A25594
Articles are hosted by Taylor and Francis Online.
Beam experiment backgrounds can be reduced by splitting the reactor core so that beam ports view moderator rather than fuel. Multigroup calculations have been performed on D2O and H2O split core reactors. Measurements of flux distributions for an H2O split core are in agreement with the calculations. Thermal flux in the center of the moderator gap is greater than a standard core flux at the same power. The fast neutron and gamma ray spectra have been calculated for a beam port viewing moderator and viewing fuel. Measurements of fast neutron current from an H2O reactor using an aluminum threshold detector indicate a factor of 10 reduction in fast flux by viewing moderator. The control characteristics of D2O and H2O split cores do not appear significantly different from those of standard cores.
