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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Mar 2026
Jan 2026
Latest Journal Issues
Nuclear Science and Engineering
April 2026
Nuclear Technology
February 2026
Fusion Science and Technology
Latest News
Going Nuclear: Notes from the officially unofficial book tour
I work in the analytical labs at one of Europe’s oldest and largest nuclear sites: Sellafield, in northwestern England. I spend my days at the fume hood front, pipette in one hand and radiation probe in the other (and dosimeter pinned to my chest, of course). Outside the lab, I have a second job: I moonlight as a writer and public speaker. My new popular science book—Going Nuclear: How the Atom Will Save the World—came out last summer, and it feels like my life has been running at full power ever since.
19th International Conference on Probabilistic Safety Assessment and Analysis (PSA 2025)
Technical Session|Sponsored by NISD
Tuesday, June 17, 2025|10:00–11:45AM CDT|Purdue/Wisconsin
Session Chair:
Nathan O. Siu
Alternate Chair:
Jim Obrien
Session Organizer:
David Grabaskas
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
A Sequential Decision-Making Formulation of Dynamic Probabilistic Risk Assessment
10:00–10:20AM CDT
Joseph F. O'Leary (University of Maryland, A. James Clark School of Engineering), Mohamed Nassar (University of Maryland, College Park), Yunfei Zhao (University of Maryland, College Park)
Paper
Time-Dependent Accident Sequence Generation Method Using Optimized Simulations for Dynamic PSA
10:20–10:40AM CDT
Wooseok Jo (Ulsan Nat'l Institute Science and Technology), Junyong Bae (Ulsan Nat'l Institute Science and Technology), Dongsan Kim (KAERI), Seung J. Lee (Ulsan Nat'l Institute Science and Technology)
Novel Result Visualization for Dynamic PSA and New Modeling Features in EMRALD
10:40–11:00AM CDT
Steven Prescott (INL), Daniel Nevius (INL), Jared Nielson (Idaho National Labratory)
Presentation Slides (Visible to Attendees)
Statechart Based Dynamic PRA Tool
11:00–11:20AM CDT
Valentin Rychkov (EDF R&D), Claudia Picoco (EDF R&D), Axel Terfloth (itemis AG)
Streamlined Simulation Using Scenario Weighting Method for Simulation and Storage Management
11:20–11:40AM CDT
Kyeong Seo Kim (Ulsan Nat'l Institute Science and Technology), Junyong Bae (Ulsan Nat'l Institute Science and Technology), Wooseok Jo (Ulsan Nat'l Institute Science and Technology), Seung Jun Lee (Ulsan Nat'l Institute Science and Technology)
To join the conversation, you must be logged in and registered for the meeting.