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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.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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NRC cuts fees by 50 percent for advanced reactor applicants
The Nuclear Regulatory Commission has announced it has amended regulations for the licensing, inspection, special projects, and annual fees it will charge applicants and licensees for fiscal year 2025.
M. Tomlinson, J. L. Smee, E. B. Winters, and M. C. Arneson
Nuclear Science and Engineering | Volume 26 | Number 4 | December 1966 | Pages 547-558
Technical Paper | doi.org/10.13182/NSE66-A18426
Articles are hosted by Taylor and Francis Online.
The hydrogenated terphenyl mixture HB-40, which is of interest as a reactor coolant, has been irradiated in a loop in the NRX reactor under conditions simulating those that might pertain in an organic-cooled reactor. High Boiler decomposition products were removed by distillation and the recovered coolant was recycled to attain a stationary-state composition. Irradiation temperatures ranged from 250 to 375°C. Rates of coolant consumption and properties of the partly decomposed coolant mixture were determined. These are compared with the properties of the terphenyl coolant mixture, Santowax OM, irradiated under the same conditions. Important differences were noted between the properties of the stationary-state coolant mixtures and the properties of the starting materials. The HB-40 mixture appears suitable for use as a reactor coolant at temperatures up to at least 375°C. It has the advantage of remaining liquid under all conditions of use.