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2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Swiss nuclear power and the case for long-term operation
Designed for 40 years but built to last far longer, Switzerland’s nuclear power plants have all entered long-term operation. Yet age alone says little about safety or performance. Through continuous upgrades, strict regulatory oversight, and extensive aging management, the country’s reactors are being prepared for decades of continued operation, in line with international practice.
Technical Session|Panel|Sponsored by NISD
Wednesday, November 18, 2020|2:40–4:20PM EST
Session Chair:
N. Prasad Kadambi
Alternate Chair:
Robert W. Youngblood
Session Organizer:
Andrew J. Clark
Staff Producer:
Julie Bry (American Nuclear Society)
RIPB ideas are widely accepted in principle, but have so far realized only part of their full potential. In the operating fleet, licensing processes were originally developed based on Design Basis Accident considerations; RIPB ideas have been applied only perturbatively, generally in order to justify license modifications or enforcement decisions. Model-Based Systems Engineering (MBSE) is finding increased use as a way to consider nuclear reactor design, construction, operation, maintenance, and decommissioning in a continuum of processes rather than compartmentalized activities. This should enable better use of RIPB methods for more useful consensus standards. The ANS has been making progress within the Standards Committee to improve standards development using some aspects of this approach. The panel discussion will consider application of RIPB approaches in other domains, its nexus with Model-Based Systems Engineering, and how best to reflect RIPB principles in consensus standards.
Robert Youngblood, III
Idaho National Laboratory
Kent Welter
NuScale Power
Ralph Hill
Westinghouse Electric Co
Chester Everline
Jet Propulsion Laboratory
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