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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Feb 2025
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
March 2025
Nuclear Technology
Fusion Science and Technology
February 2025
Latest News
Colin Judge: Testing structural materials in Idaho’s newest hot cell facility
Idaho National Laboratory’s newest facility—the Sample Preparation Laboratory (SPL)—sits across the road from the Hot Fuel Examination Facility (HFEF), which started operating in 1975. SPL will host the first new hot cells at INL’s Materials and Fuels Complex (MFC) in 50 years, giving INL researchers and partners new flexibility to test the structural properties of irradiated materials fresh from the Advanced Test Reactor (ATR) or from a partner’s facility.
Materials meant to withstand extreme conditions in fission or fusion power plants must be tested under similar conditions and pushed past their breaking points so performance and limitations can be understood and improved. Once irradiated, materials samples can be cut down to size in SPL and packaged for testing in other facilities at INL or other national laboratories, commercial labs, or universities. But they can also be subjected to extreme thermal or corrosive conditions and mechanical testing right in SPL, explains Colin Judge, who, as INL’s division director for nuclear materials performance, oversees SPL and other facilities at the MFC.
SPL won’t go “hot” until January 2026, but Judge spoke with NN staff writer Susan Gallier about its capabilities as his team was moving instruments into the new facility.
Technical Session
Wednesday, May 10, 2023|3:45–5:25PM MDT|Idaho Falls Room
Session Chair:
Robert C. O'Brien
Session Organizer:
Alternate Chair:
Michael G. Houts
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The Effects of Hot Hydrogen Exposure on (U,Zr)C Fuel for Nuclear Thermal Propulsion
3:45–4:05PM MDT
Jhonathan Rosales (NASA Marshall Space Flight Center), Arne Croell (Univ. Alabama, Hunstville), Jamelle K.P. Williams (NASA Marshall Space Flight Center), Brian Taylor (NASA Marshall Space Flight Center), Martin Volz (NASA Marshall Space Flight Center), Jason Reynolds (Univ. South Carolina), Christopher McKinney (NASA Marshall Space Flight Center)
Paper
Mechanical Properties and Failure Mechanisms of Cermet Fuel for Nuclear Thermal Propulsion (NTP)
4:05–4:25PM MDT
James Mudd (LANL), Jeremy Watts (Missouri Univ. Science and Technology), Jhonathan Rosales (NASA Marshall Space Flight Center), Ryan Wilkerson (LANL), Brian Taylor (NASA Marshall Space Flight Center), William Fahrenholtz (Missouri Univ. Science and Technology), Gregory Hilmas (Missouri Univ. Science and Technology), Joseph Graham (Missouri Univ. Science and Technology)
A Predictive Transient Model of the TREAT-SIRIUS Experiments
4:25–4:45PM MDT
Mustafa K. Jaradat (INL), Sebastian Schunert (INL), Frederick N. Gleicher (INL), Vincent M. Laboure (INL), Mark D. DeHart (INL)
Vehicle-Level Performance Benefits of Ammonia Nuclear Thermal Propulsion
4:45–5:05PM MDT
Craig Foulds (Ultra Safe Nuclear), Doug Greisen (Ultra Safe Nuclear), Hari Nagarajan (Ultra Safe Nuclear), Michael Eades (Ultra Safe Nuclear)
Thermal Analysis of the SIRIUS3 Nuclear Propulsion Fuel Calibration Experiment
5:05–5:25PM MDT
Frederick N. Gleicher (INL), Mustafa K. Jaradat (INL), Sebastian Schunert (INL), Mark DeHart (INL)
Presentation Slides (Visible to Attendees) — presentation slides
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