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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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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Shelly X. Li
Nuclear Technology | Volume 162 | Number 2 | May 2008 | Pages 144-152
Technical Paper | First International Pyroprocessing Research Conference | doi.org/10.13182/NT08-A3941
Articles are hosted by Taylor and Francis Online.
Idaho National Laboratory and Argonne National Laboratory have developed and demonstrated a pyroprocessing technology for the U.S. Department of Energy to reprocess spent nuclear fuel. One of the key steps in the pyroprocessing was electrorefining the spent fuel in a metal form in a molten LiCl-KCl-UCl3/liquid cadmium (Cd) system using the Mark-IV, an engineering-scale electrorefiner (ER). This paper summarizes experimental observations and engineering aspects for the roles of the Cd in electrorefining spent fuel in the Mark-IV ER. It was found that the Cd pool acted as an intermediate electrode during the electrorefining process. The Cd level gradually decreased because of its high vapor pressure at the ER operating temperature. The low Cd level caused the anode assembly to electrically short with the ER vessel hardware, which resulted in difficulty determining the endpoint of uranium dissolution from the anode baskets and reduced the current efficiency. A reflux Cd vapor trap successfully prevented the Cd level from decreasing and mitigated Cd vapor deposition on the cold metal surface inside the ER.