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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2021 ANS Winter Meeting and Technology Expo
November 30–December 3, 2021
Washington, DC|Washington Hilton
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!
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Oct 2021
Jul 2021
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Nuclear Science and Engineering
November 2021
Nuclear Technology
Fusion Science and Technology
August 2021
Latest News
Neutron noise monitoring during plant operation expedites flexure replacement at Salem-1
The nuclear industry has historically relied on intermittent ultrasonic test and visual inspections of pressurized water reactor components to identify and manage degradation. While this reactive approach has proven to be effective, imagine a scenario in which the degradation could propagate throughout the reactor internals, making a more proactive measure necessary to avoid a major enterprise risk to the plant. Could a utility identify the onset of degradation within the reactor internals during plant operation? If so, could a repair be developed prior to the next refueling outage to prevent additional, cascading degradation? That is exactly the situation that Public Service Enterprise Group (PSEG) and Westinghouse engineers were able to navigate over the course of the 2019–2020 operating cycle at Salem Unit 1, resulting in a tremendous success for the plant and a historic landmark in the nuclear industry, while earning the team a 2021 Nuclear Energy Institute Top Innovative Practice (TIP) award.
Technical Session|Panel|Sponsored by THD
Tuesday, June 15, 2021|11:00AM–12:45PM (12:00–1:45PM EDT)
Session Chair:
W. David Pointer
Session Organizer:
Alternate Chair:
Igor A. Bolotnov
Staff Producer:
Jessie Vazquez (ANS)
As energy markets continue to evolve with stronger contributions from intermittent sources, the ability to execute changes in power production in response to changing electrical grid demand increases in value. While many early reactor concepts and demonstrations may have exhibited load-following feedback mechanisms, the thermodynamic optimization of contemporary systems and fuel-utilization optimization of contemporary cores make such maneuvers difficult. This panel session will discuss the challenges and opportunities in thermal hydraulics engineering related to the deployment of innovative solutions to enable load-follow in future energy markets.
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