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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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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:
Douglas Osborn (Sandia)
Alternate Chair:
Vaibhav Yadav (INL)
Session Producer:
Nora Fitton
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Risk-Informed Access Delay Timeline Development
10:10–10:40AM EST
Douglas M. Osborn (Sandia), Dusty Brooks (Sandia), Andrew Thompson (Sandia)
Paper
Risk-Informed Approaches for Physical Security
10:40–11:10AM EST
Douglas M. Osborn (Sandia), Adam Williams (Sandia), Susan Caskey (Sandia), Andrew Clark (Sandia), Gregory Wyss (Sandia)
Methodology and Application of Physical Security Effectiveness Based on Dynamic Force-on-Force Modeling
11:10–11:40AM EST
Robby Christian (INL), Vaibhav Yadav (INL), Stephen Prescott (INL), Shawn St. Germain (INL)
Integrated Safety and Security Analysis of Nuclear Power Plants Using Dynamic Event Trees
11:40AM–12:10PM EST
Brian Cohn (The Ohio State Univ.), Tunc Aldemir (The Ohio State Univ.), Troy Haskin (Sandia), Todd Noel (Sandia), Jeffrey Cardoni (Sandia), Douglas Osborn (Sandia)
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