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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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.”
André Puill, Jean Bergeron
Nuclear Technology | Volume 119 | Number 2 | August 1997 | Pages 123-140
Technical Paper | Nuclear Fuel Cycle | doi.org/10.13182/NT97-A35381
Articles are hosted by Taylor and Francis Online.
An objective is to enhance the use of plutonium in conventional or slightly modified pressurized water reactors, while minimizing minor actinide production. Having entirely mixed-oxide-fueled reactors reduces the number of reactors that are affected on plutonium recycling and avoids the need for fuel zoning. However, the overall consumption is <30%, and the mass of minor actinides produced is considerable, representing up to 25 % of the plutonium used. The Advanced Plutonium Fuel Assembly concept, based on a uranium-free plutonium fuel, which achieves high burnups and an increased moderation ratio, enables 60% of the second-generation plutonium to be consumed, while the minor actinides produced only represent 8% of this figure. The heterogeneous design of the fuel assembly, which includes natural uranium or low-enriched uranium fuel rods, guarantees values that suit the physical parameters of the core. The concept was analyzed from a thermo-hydraulic aspect in both rated and accident situations. Technological feasibility is yet to be demonstrated. This study is part of a medium-term strategy for the back end of the fuel cycle.