ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference 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!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
Nuclear energy for maritime shipping and coastal applications
The Boston-based Deon Policy Institute has published a white paper that examines the applications of nuclear energy in the maritime sector—specifically, floating nuclear power plants and nuclear propulsion for commercial vessels. Topics covered include available technologies, preliminary cost estimates, and a status update on the regulatory framework.
Unique opportunity: The paper points out that nuclear energy has the potential to benefit the shipping industry with high energy efficiency, lower operating costs, and zero carbon emissions. The report has a special focus on Greece, a nation that controls about 20 percent of the global commercial fleet and thus has an opportunity to take a leading role in the transition to nuclear-powered shipping.
I. E. Knudsen, H. E. Hootman and N. M. Levitz
Nuclear Science and Engineering | Volume 20 | Number 3 | November 1964 | Pages 259-265
Technical Paper | doi.org/10.13182/NSE64-A19567
Articles are hosted by Taylor and Francis Online.
This new, dry process employs fluidization and particle-coating techniques and involves direct conversion of uranium hexafluoride to a solid, (uranyl fluoride), by hydrolysis with steam followed by reduction of the uranyl fluoride to the dioxide by reaction with steam-hydrogen mixtures. Process studies were carried out in 3-in.-diameter Monel reactors. The uranium-hexafluoride/steam reaction was conducted continuously at relatively low temperatures, about 200 C, at a uranium hexafluoride rate equivalent to 174 lb uranium h-1 ft-2 of reactor cross section and a steam rate of about 3.25 times the stoichiometric requirement. Seed addition was required to offset particle-growth effects. Uranium losses to the off-gas were less than 0.01% of the hexafluoride fed. Reduction of the uranyl fluoride to the oxide was demonstrated in batch tests. Low-fluoride (<250 parts/106 residual) material was consistently produced in four hours at 650 C and in seven hours at 600 C using a 50:50 mixture of steam and hydrogen. Pellet-fabrication tests on dioxide powders ground to -325 mesh gave sintered densities of about 94% of theoretical.