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|10:10AM–12:10PM EST
Session Chair:
Hyun Gook Kang (RPI)
Alternate Chair:
Xiaoxu Diao (OSU)
Session Producer:
Sam Brewer
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.
How to Assess a PSA Involving Passive Systems With a Number of CATHARE Code Runs Within an Industrial Context
10:10–10:40AM EST
Yann Morvan (EDF), Elisabeth Duvillard (EDF)
Paper
Development and Application of Risk Analysis Toolkit for Plant Resource Optimization
10:40–11:10AM EST
D. Mandelli (INL), C. Wang (INL), S. Hess (Jensen Hughes), D. P. Morton (Northwestern Univ.), I. Popova (Texas State Univ.)
Managing Unexpected Failures of Nuclear Power Plants by Incorporating Organizational Factors Into Probabilistic Risk Assessment
11:10–11:40AM EST
Andrea Roy (Univ. of Illinois at Urbana-Champaign), Pegah Farshadmanesh (Univ. of Illinois at Urbana-Champaign), Tatsuya Sakurahara (Univ. of Illinois at Urbana-Champaign), Ernie Kee (Univ. of Illinois at Urbana-Champaign), Zahra Mohaghegh (Univ. of Illinois at Urbana-Champaign)
Automatic Generation of Event Trees and Fault Trees: A Model-Based Approach
11:40AM–12:10PM EST
D. Mandelli (INL), A. Alfonsi (INL), T. Aldemir (Ohio State Univ.)
To join the conversation, you must be logged in and registered for the meeting.