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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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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Latest News
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.
H. Oka, M. Nishikawa, T. Takeishi, J. Yamaguchi, M. Nishi, T. Hayashi, K. Kobayashi
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 658-662
Safety and Safety System | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22669
Articles are hosted by Taylor and Francis Online.
The system effect of tritium arises from the interaction of tritium in the gas phase with water on the surface of piping materials. It has been reported that the system effect can be quantified by applying the serial reactor model to the piping system, connection of perfect mixed flow type reactors and plug flow type reactors, and that adsorption and isotope exchange reactions play the main roles in the trapping of tritium. In this study we made a calculation code of the system effect using the serial reactor model where 304SS, aluminum, copper or graphite is used for the piping material. Comparison of the calculated value using this code gives the good agreement with the experimental data taken at the cooperative experiment using a box made of stainless steel type 304 in Tritium Processing Laboratory in JAERI and that is called as the Caisson. It is observed that the isotope exchange reaction between tritiated water in the air and surface water on the 304SS surface controls the tritium trapping performance at the room temperature although HTO/HT ratio is around 0.1 in this experiment.