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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
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
K. Liger, P. Trabuc, X. Lefebvre, M. Troulay, C. Perrais
Fusion Science and Technology | Volume 67 | Number 2 | March 2015 | Pages 455-458
Proceedings of TRITIUM 2013 | doi.org/10.13182/FST14-T53
Articles are hosted by Taylor and Francis Online.
In the framework of the development of fusion thermonuclear reactors, tritiated solid waste is foreseen and will have to be managed. In France, the long-term management of all radioactive waste is under the responsibility of the national waste management agency (ANDRA), which sets out strict specifications on waste drums before their acceptances in disposal. Among all these specifications, the related ones for tritium concern limitations in terms of activity and tritium degassing. The latter is the subject of research developments to improve its control. The degassing tritium can be under the form of tritiated hydrogen, tritiated water and, in some specific cases, negligible amount of tritiated volatile organic compound. Hence, considering the major forms of degassing tritium, CEA has developed a mixed-compound dedicated to tritium trapping in drums. Based on several experiments, the foreseen mixed compound is composed of MnO2, Ag2O, Pt and molecular sieve, the three first species having the ability to convert tritiated hydrogen into tritiated water and the last one acting as a trap for tritiated water. This paper aims at describing the formulation of the mixed solids compound and presenting the first results of experimental lab-scale tests performed on purely tritiated waste confined in a small reactor. It is observed that the rate of tritium degassing from the reactor is reduced drastically during several months by means of the presence of the mixed compound.