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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Latest News
Valar’s Ward 250 reaches criticality in Utah
El Segundo, Calif.–based start-up Valar Atomics has taken its Ward 250 test reactor critical at the Utah San Rafael Energy Lab (USREL), becoming the second company in the Department of Energy's Reactor Pilot Program to reach the milestone, and, according to the DOE, the first to do so outside a national laboratory.
The DOE celebrated the achievement in a June 18 announcement, describing it as a "zero-power fueled criticality demonstration." The news follows a similar update for Antares Nuclear's Mark-0 reactor, which the DOE said achieved criticality at Idaho National Laboratory earlier this month.
Advanced Reactor Safety (ARS)
Technical Session
Tuesday, June 18, 2024|10:00–11:45AM PDT|Palm A
Session Chair:
Dennis W. Henneke
Session Organizer:
Alternate Chair:
Aslak Stubsgaard
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The Co-Evolution of the GE-Hitachi BWRX-300 Probabilistic Safety Assessment and Plant Design
10:00–10:20AM PDT
Nathan DeKett (GE - Hitachi Nuclear Energy), Dennis Henneke (GE-Hitachi Nuclear Energy)
Paper
Application of the GIF Safety Design Criteria and Safety Design Guidelines on Decay Heat Removal System to Next Generation Sodium-Cooled Fast Reactor in Japan
10:20–10:40AM PDT
Hidemasa Yamano (Japan Atomic Energy Agency), Satoshi Futagami (Japan Atomic Energy Agency), Koichi Higurashi (Mitsubishi FBR Systems, Inc.)
Application of the RMPS+ Method to the BWRX-300 Isolation Condenser System: An Introduction
10:40–11:00AM PDT
Tyra Gordon (GE Hitachi Nuclear Energy), Nathan DeKett (GE Hitachi Nuclear Energy), Dennis Henneke (GE Hitachi Nuclear Energy), Jonathan Li (GE Hitachi Nuclear Energy)
Development and Demonstration of a Prototype Molten Salt Sampling System
11:00–11:20AM PDT
Megan Harkema (Vanderbilt Univ.), Steven Krahn (Vanderbilt Univ.), Paul Marotta (Vanderbilt Univ.), Adam Burak (Univ. Michigan), Xiaodong Sun (Univ. Michigan), Piyush Sabharwall (INL)
Application of the GIF Safety Design Criteria and Safety Design Guidelines on Reactor Shutdown System to Next Generation Sodium-Cooled Fast Reactor in Japan
11:20–11:40AM PDT
Hidemasa Yamano (Japan Atomic Energy Agency), Satoshi Futagami (Japan Atomic Energy Agency), Akihiro Shibata (Mitsubishi FBR Systems, Inc.)