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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Dec 2025
Jul 2025
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Nuclear Science and Engineering
January 2026
Nuclear Technology
December 2025
Fusion Science and Technology
November 2025
Latest News
What’s the most difficult question you’ve been asked as a maintenance instructor?
Blye Widmar
"Where are the prints?!"
This was the final question in an onslaught of verbal feedback, comments, and critiques I received from my students back in 2019. I had two years of instructor experience and was teaching a class that had been meticulously rehearsed in preparation for an accreditation visit. I knew the training material well and transferred that knowledge effectively enough for all the students to pass the class. As we wrapped up, I asked the students how they felt about my first big system-level class, and they did not hold back.
“Why was the exam from memory when we don’t work from memory in the plant?” “Why didn’t we refer to the vendor documents?” “Why didn’t we practice more on the mock-up?” And so on.
Technical Session
Thursday, September 29, 2022|10:00AM–12:05PM PDT|Seaport
Session Chair:
Chikara Konno (Japan Atomic Energy Agency)
Alternate Chair:
Jeff Favorite (LANL)
Session Organizer:
Thomas M. Miller (ORNL)
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Two-Group Flux Analysis of Neutrons Which Penetrate Metallic Walls -- Deterministic Predictions vs. MC Simulations
10:00–10:25AM PDT
Eric V. Steinfelds (Western Kentucky Univ.), Keith Andrew (Western Kentucky Univ.)
Paper
MATXS Multigroup File Problem due to NJOY Unresolved Resonance Processing
10:25–10:50AM PDT
Chikara Konno (Japan Atomic Energy Agency), Kenichi Tada (Japan Atomic Energy Agency), Saerom Kwon (National Institutes for Quantum Science and Technology)
Multigroup Boundary Projection Acceleration of Partially-Converged Nested Iterations Applied to Fixed-Source Sub-Critical Transport Problems
10:50–11:15AM PDT
D. Sciannandrone (CEA), E. Masiello (CEA), D. Mancusi (CEA), S. Bourganel (CEA)
Domain Decomposition of the First Collision Source Method in the IDT Solver
11:15–11:40AM PDT
Matteo Falabino (CEA), Daniele Sciannandrone (CEA), Emiliano Masiello (CEA), Jean-François Vidal (CEA)
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