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.
Yigal Ronen, Yaakov Fahima
Nuclear Technology | Volume 73 | Number 2 | May 1986 | Pages 210-219
Technical Paper | Performance of Borosilicate Glass High-Level Waste Forms in Disposal System / Fission Reactor | doi.org/10.13182/NT86-A33785
Articles are hosted by Taylor and Francis Online.
A high convertor pressure tube reactor is presented and analyzed from the standpoint of neutronics. High conversion and for some cases even breeding are obtained because of the hard neutron spectrum in a tight lattice reactor as well by reducing the parasitic absorptions through constant refueling. Eight different cases are analyzed with different fuels (232Th, 233U, 235U, 238U, and plutonium) and different coolants (H2O and D2O). The advantage of pressure tube reactors compared to pressure vessel reactors is demonstrated from the standpoint of the neutronics. This advantage is demonstrated by the improved fuel utilization associated with pressure tube reactors.
