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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.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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
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 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. 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.”
M. Tanaka, T. Sugiyama, T. Ohshima, I. Yamamoto
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1391-1394
Detritiation and Isotope Separation | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12690
Articles are hosted by Taylor and Francis Online.
To develop a tritium monitoring system with a membrane gas separator, the extraction characteristics of a hydrogen isotope pump using CaZr0.9In0.1O3- as proton conductor were evaluated over the temperature range from 873 K to 1073 K by electrolysis of tritiated water vapor. Although the isotope ratio between proton and tritium in the anode compartment was extremely low, tritium gas (HT) could be extracted along with hydrogen gas (H2) to the cathode compartment by the electrochemical hydrogen pump. The T/H isotope ratio in the cathode compartment was lower than that in the anode compartment because of the isotope effect in the hydrogen pump. However, when the hydrogen recovery rate increased, the ratio of hydrogen isotopes approached unity, which might be caused by variation in the T/H ratio along the axial direction. With respect to the tritium memory effect in the proton conductor, the isotope exchange reaction using wet gas was found to be an efficient method for tritium decontamination.