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
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
March 2026
Nuclear Technology
February 2026
Fusion Science and Technology
April 2026
Latest News
NRC approves TerraPower construction permit
Today, the Nuclear Regulatory Commission announced that it has approved TerraPower’s construction permit application for Kemmerer Unit 1, the company’s first deployment of Natrium, its flagship sodium fast reactor.
This approval is a significant milestone on three fronts. For TerraPower, it represents another step forward in demonstrating its technology. For the Department of Energy, it reflects progress (despite delays) for the Advanced Reactor Demonstration Program (ARDP). For the NRC, it is the first approval granted to a commercial reactor in nearly a decade—and the first approval of a commercial non–light water reactor in more than 40 years.
Technical Session
Wednesday, November 10, 2021|2:50–4:50PM EST
Session Chair:
Fernando Ferrante (EPRI)
Alternate Chair:
Michelle (Shelby) Bensi (U Maryland)
Session Organizer:
Session Producer:
John Greenwood
To access the session recording, you must be logged in and registered for the meeting.
Register NowLog In
To access paper attachments, you must be logged in and registered for the meeting.
Analysis of Outlying Simulations for PWR Accidental Transients
2:50–3:20PM EST
Álvaro Rollón de Pinedo (EDF), Bertrand Iooss (EDF), Roman Sueur (EDF), Nathalie Marie (CEA), Amandine Marrel (CEA), Elsa Merle (LPSC)
Paper
Standardized Probabilistic Safety Assessment Models: Status and First Results of SPAR-CSN Project
3:20–3:50PM EST
Enrique Meléndez (Consejo de Seguridad Nuclear), Cesar Queral (Universidad Politecnica de Madrid), Carlos París (Universidad Politécnica de Madrid), Miguel Sánchez (Consejo de Seguridad Nuclear), Marcos Cabezas (Universidad Politécnica de Madrid), Santiago Arrazola (Universidad Politécnica de Madrid), Sergio Courtin (Universidad Politécnica de Madrid), David Castro (Universidad Politécnica de Madrid), Rafael Iglesias (Universidad Politécnica de Madrid)
Practical Approach for Uncertainty Quantification and Sensitivity Analysis in Fire Probabilistic Risk Assessment Modeling
3:50–4:20PM EST
Fernando Ferrante (EPRI), Ashley Lindeman (EPRI), Marko Randelovic (EPRI), Georgi Georgiev (Jacobsen Analytics), Paul Boneham (Jacobsen Analytics)
Uncertainty and Sensitivity Analyses With SUSA for a Station Blackout Scenario Calculated by MELCOR
4:20–4:50PM EST
Sören Johst (Gesellschaft für Anlagen- und Reaktorsicherheit), Michael Kowalik (Gesellschaft für Anlagen- und Reaktorsicherheit), Michael Hage (Gesellschaft für Anlagen- und Reaktorsicherheit)
Presentation Video
To join the conversation, you must be logged in and registered for the meeting.
