Helping to solve the plant safety puzzle: An overview of PRA

September 17, 2021, 3:01PMNuclear NewsCurtis Smith, Andrew Miller, Stephen Hess, and Fernando Ferrante

Probabilistic risk assessments (PRAs) have advanced the safe operation of the U.S. reactor fleet over many decades. Risk insights from PRAs have provided information from many different perspectives, from what is most important to maintain at a facility to a better understanding of how to address new information regarding safety issues. The methods and tools that have supported the creation and enhancement of PRA models were established through multiple decades of research, starting with WASH-1400, The Reactor Safety Study,1 published in 1975, through the comprehensive plant-specific models in use today.

To continue reading, log in or create a free account!

Related Articles

The origins of The Reactor Safety Study

September 3, 2021, 3:56PMNuclear NewsThomas R. Wellock

In March 1972, Stephen Hanauer, a technical advisor with the Atomic Energy Commission, met with Norman Rasmussen, a nuclear engineering professor at the Massachusetts Institute of Technology....

On alpha, flak, and jack

September 7, 2021, 9:30AMANS News

This month’s issue of Nuclear News focuses on the role of probabilistic methods in assessing and mitigating the risk of adverse events at nuclear plants and facilities. It’s a timely topic...

Metz on Harold Denton: Memories of a life in nuclear safety

Chuck Metz Jr. discusses his collaboration with Harold Denton, whose memoir interweaves a retelling of the Three Mile Island accident events with stories of his career-long advocacy for nuclear safety.

July 23, 2021, 2:54PMNuclear News

A number of years ago, historian and writer Chuck Metz Jr. was at the Bush’s Visitor Center in Tennessee’s Great Smoky Mountains when he ran into former Nuclear Regulatory Commission...

American Nuclear Society urges Biden to fill NRC seats

Vacancies undermine the U.S. Nuclear Regulatory Commission’s mission

July 1, 2021, 4:46PMPress Releases

The American Nuclear Society (ANS) requests President Biden restore the U.S. Nuclear Regulatory Commission (NRC) to five commissioners by naming and expediting nominees to the agency. The...

Nuclear I&C Modernization: The Future is Digital

June 4, 2021, 9:34AMSponsored ContentRobert Ammon, Technical Director of Digital Safety Systems at Curtiss-Wright Nuclear Division

As the U.S. nuclear industry moves into plant life extension and subsequent license renewals, the modernization of safety instrumentation and control (I&C) systems holds significant...