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
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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
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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.”
Daisuke Kawasaki, Joonhong Ahn
Nuclear Technology | Volume 163 | Number 1 | July 2008 | Pages 137-146
Technical Paper | High-Level Radioactive Waste Management | doi.org/10.13182/NT08-A3977
Articles are hosted by Taylor and Francis Online.
A method that utilizes a time-domain random-walk model with residence time distributions (RTDs) for radionuclides in a compartment has been developed and applied to a safety assessment model for geologic disposal of high-level radioactive wastes. By choosing a proper RTD, which can be determined by a detailed model for radionuclide transport in a compartment, the present compartment model can simulate radionuclide transport through a repository region without numerical dispersion due to coarse discretization. The method has been demonstrated and illustrated for the case that the physical transport processes in a compartment and the corresponding RTD are known. For an actual performance assessment for a geologic repository, in which multiple waste packages are placed in an array configuration, it is considered that the repository-scale transport simulation can be greatly modularized and simplified by obtaining an RTD around a single package.