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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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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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.
Carlos Ruiz, Carlos Rinaldi
Nuclear Technology | Volume 198 | Number 3 | June 2017 | Pages 319-326
Technical Paper | doi.org/10.1080/00295450.2017.1297170
Articles are hosted by Taylor and Francis Online.
This work presents the effects that produce the change in entropy during separation processes; it takes into account the dilution of UF6 in a carrier gas (H2, He, N2, Ar, Xe, SF6, etc.). Comparisons were made between two technologies: one a mature process currently used, i.e., centrifugation (process A), and the other in development, i.e., processes based on a laser [Condensation Repression Isotope Separation by Laser (CRISLA), Molecular Laser Isotope Separation (MLIS), etc.] (process B). The calculations were made using the principles of mix thermodynamics. The results indicate that entropy expenditure is two orders of magnitude higher than that necessary to separate isotopes when the amount (of isotopes) is the same in both process A and process B.