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
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
October 2025
Nuclear Technology
September 2025
Fusion Science and Technology
Latest News
PR: American Nuclear Society welcomes Senate confirmation of Ted Garrish as the DOE’s nuclear energy secretary
Washington, D.C. — The American Nuclear Society (ANS) applauds the U.S. Senate's confirmation of Theodore “Ted” Garrish as Assistant Secretary for Nuclear Energy at the U.S. Department of Energy (DOE).
“On behalf of over 11,000 professionals in the fields of nuclear science and technology, the American Nuclear Society congratulates Mr. Garrish on being confirmed by the Senate to once again lead the DOE Office of Nuclear Energy,” said ANS President H.M. "Hash" Hashemian.
Yasunori Iwai, Katsumi Sato, Toshihiko Yamanishi
Fusion Science and Technology | Volume 62 | Number 1 | July-August 2012 | Pages 83-88
Hydrogen/Tritium Behavior | Proceedings of the Fifteenth International Conference on Fusion Reactor Materials, Part A: Fusion Technology | doi.org/10.13182/FST12-A14117
Articles are hosted by Taylor and Francis Online.
In the case of a fire accident in a fusion plant, tritiated organic substances will be produced. We have developed a Pd/ZrO2 catalyst applicable for the oxidation of tritiated organic substances. In this study, two different weight ratios of palladium, 5 and 10 g/l, were selected. The overall reaction rate constant of tritiated methane oxidation with the palladium catalysts in a flow-through system were determined as a function of space velocity from 1200 to 7000 h-1 , methane concentration in carrier from 0.004 to 100 ppm, and temperature of catalyst from 323 to 673 K. As-received catalysts showed a large overall reaction rate constant over the whole tested temperature range. However, the constants gradually decreased after a while. The considerable decrease was evaluated especially over the lower temperature range. The decrease has been explained as caused by the layers of produced water that formed on the surface of the catalyst playing the role of obstacle to reactant transport onto the noble metal deposited on the catalyst. The performance of 10 g/l catalyst was superior to that of 5 g/l over the whole tested temperature range. The overall reaction rate constant was dependent on the space velocity and independent of methane concentration in the carrier.