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
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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.”
N. A. Uckan, H-W. Bartels, D. Boucher, T. Honda
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 661-665
Safety and Environment (Poster Session) | doi.org/10.13182/FST98-A11963690
Articles are hosted by Taylor and Francis Online.
Verification efforts to compare the results from the safety assessment code SAFALY (with 0-D plasma model) and the 1.5-D plasma transport code PRETOR are discussed. The SAFALY code was used for calculating safety related plasma transients documented in ITER safety reports (ITER-FDR). The PRETOR code was used for plasma performance assessments for many ITER design related problems. Four test cases are considered as a verification basis for the SAFALY-PRETOR comparison: (i) increase in fueling by a specified amount and parameter scans to explore conditions leading to a maximum fusion power transient, (ii) sudden improvement (doubling) of plasma energy confinement time, (iii) sudden injection of 100 MW of heating power into an ignited plasma, and (iv) stop of plasma fueling. Verification studies of plasma transient analysis with SAFALY and PRETOR code systems have confirmed that the significant number of results reported in safety reports [such as ITER-FDR] can be reproduced by both code systems, and that the safety reports were based on the more conservative results.