ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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.
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
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 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.”
C. T. Peng, P. C. Souers
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 307-311
Safety; Measurement and Accountability; Operation and Maintenance; Application | doi.org/10.13182/FST92-A29762
Articles are hosted by Taylor and Francis Online.
Tritium incorporation by synthetic and non-synthetic methods shares the common mechanism of labeling, requiring the activation of tritium gas. Activation can be by catalysts, hot tungsten wire, microwave discharge, etc. and results in the formation of tritium atoms and ions. The tritium atoms and ions may form free or sorbed onto a surface to react with substrate yielding different isotopomers and by-products. A third mechanism of labeling is tunneling. Tunneling is significant at near absolute zero temperature with liquid and solid tritium and is also significant when high pressures of tritium gas are used for labeling. Other parameters relating to supports, catalysts, purity of tritium gas, chemical nature of substrates, can also affect labeling. Tritium NMR spectroscopy can determine the tritium distribution in a molecule to aid in interpreting the labeling mechanism. The non-synthetic methods have the potential of labeling complex molecules of biomedical interest that are inaccessible by synthetic methods.