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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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
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Nuclear Science and Engineering
November 2021
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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 NISD
Monday, June 14, 2021|2:15–4:00PM (3:15–5:00PM EDT)
Session Chair:
David S. Grabaskas
Alternate Chair:
Matthew R. Denman
Session Organizer:
Andrew J. Clark
Staff Producer:
Julie Bry (ANS)
The ANSI/ASME/ANS "Probabilistic Risk Assessment Standard for Advanced Non-Light Water Reactor Nuclear Power Plants" was approved and published January 28, 2021. The development of the Non-LWR PRA Standard encountered many technical issues that the working group overcame, such as: database development for the 1,500+ requirements; combining PRA elements from multiple PRA standards into one comprehensive PRA standard; formation of absolute importance measures and screening criteria; and appropriate language to allow PRA applications over the entire design/operation life cycle. This panel will discuss these technical issues and the lessons learned from the development of the Non-LWR PRA Standard.
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