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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Nuclear Science and Engineering
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Latest News
Antares achieves zero-power criticality at INL
Leveraging more than $140 million in private capital fundraising, over 322,000 square feet of operational manufacturing space, and multifaceted partnerships with the Departments of Energy and Defense, reactor start-up Antares has become the first company involved in the Reactor Pilot Program to achieve zero-power fueled criticality—a full month ahead of the July 4 deadline set by President Trump’s Executive Order 14301.
This milestone, announced yesterday, was achieved with the company’s Mark-0: a sodium heat-pipe-cooled, TRISO-fueled microreactor. The Mark-0 is a forerunner to the company’s flagship design, which it calls the R1. For Antares, this development represents a key validation of its reactor physics, control systems, and supply chain.
Technical Session|Sponsored by MSTD
Monday, November 16, 2020|1:00–3:10PM EST
Session Chair:
Maria A. Okuniewski
Alternate Chair:
Colby B. Jensen
Session Organizer:
Kenneth J. Geelhood
Staff Producer:
Jessie Vazquez (American Nuclear Society)
To access the session recording, you must be logged in and registered for the meeting.
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Building a Molten-Salt Forced-Circulation Loop for the MIT Reactor
Charles W. Forsberg (Massachusetts Institute of Technology), Kevin R. Robb (Oak Ridge National Laboratory), Raluca O. Scarlat (University of California at Berkeley), Ayman I. Hawari (North Carolina State University), David M. Carpenter (Massachusetts Institute of Technology)
Paper
Overpower Testing of TCR Fuel in TREAT
Daniel M. Wachs (Idaho National Laboratory), Gokul Vasudevamurthy (Oak Ridge National Laboratory), Kurt A. Terrani (Oak Ridge National Laboratory), Trevor Smuin (Idaho National Laboratory), Daniel Schappel (Oak Ridge National Laboratory), Matthew Ramirez (Idaho National Laboratory), Kory Linton (Oak Ridge National Laboratory), Connie M. Hill (Idaho National Laboratory), Joshua D. Fishler (Idaho National Laboratory), Daniel Chapman (Idaho National Laboratory), Nicolas E. Woolstenhulme (Idaho National Laboratory)
Enabling Future Microreactor Testing with the NIMBLE Platform in TREAT
Daniel M. Wachs (Idaho National Laboratory), Nicolas E. Woolstenhulme (Idaho National Laboratory), Begona Aranguren (Texas A&M University College Station), Daniel B. Chapman (Idaho National Laboratory), Kayla Clements (University of Florida), Aaron S. Epiney (Idaho National Laboratory), Austin D. Fleming (Idaho National Laboratory), Justin T. Johnson (Idaho National Laboratory), Matthew R. Ramirez (Idaho National Laboratory), John D. Bess (Idaho National Laboratory), Kevan D. Weaver (Idaho National Laboratory)
Thermal Design Analysis Supporting a Loss of Coolant Accident Experiment at TREAT
Robert J. Armstrong (INL), Charles P. Folsom (Idaho National Laboratory), Colby B. Jensen (Idaho National Laboratory), Nicolas E. Woolstenhulme (Idaho National Laboratory)
A Novel In-situ Creep Capsule Design for the Versatile Test Reactor
Dulus Owen (Purdue University), Maria A. Okuniewski (Purdue University)
