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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!
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Dec 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|Condensed Matter Physics
Wednesday, September 11, 2024|11:00AM–12:30PM EDT|Gold Ballroom
Session Chair:
Alex Landa
Alternate Chair:
Jason R. Jeffries
Session Organizer:
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Probing Bonding Properties of Pu by High Resolution X-ray Spectroscopy and Computations
11:00–11:30AM EDT
Tonya Vitova (Karlsruhe Institute of Technology), Bianca Schacherl (Karlsruhe Institute of Technology), Michelangelo Tagliavini (Heidelberg Univ.), Harry Ramanantoanina (Karlsruhe Institute of Technology), Hanna Kaufmann (Karlsruhe Institute for Technology), David Fellhauer (Karlsruhe Institute of Technology), Tim Prüßmann (Karlsruhe Institute of Technology), Karin Popa (European Commission, Joint Research Centre), Olaf Walter (European Commission, Joint Research Centre), Maurits Haverkort (Heidelberg Univ.), Jochen Autschbach (Univ. Buffalo), Paul Bagus (Univ. North Texas)
Paper
Micromechanical Modeling and Experimental Validation of Thermal Strain Accommodation in Two Phase 𝜶 + 𝜹 Plutonium
11:30–11:50AM EDT
Daniel Savage (LANL), Quinton Geller (LANL), Bjorn Clausen (LANL), Travis Carver (LANL), Peter Kenesei (ANL), Jun Sang Park (ANL), Donald Brown (LANL)
Exploring the Local Structures and Temperature Accelerated Aging Effects of Plutonium/Plutonium-Based Materials Using new Facilities, Upgraded Probes, and Uncommon Analysis Techniques
11:50AM–12:10PM EDT
Alexander R. Munoz (LANL), Matthew S. Cook (LANL), Greta L. Chappell (LANL), David C. Arellano (LANL), Derek V. Prada (LANL), Jeremy N. Mitchell (LANL), Eric D. Bauer (LANL), Sarah C. Hernandez (LANL), Neil Harrison (LANL), Paul H. Tobash (LANL), Milinda Abeykoon (Brookhaven), W. Adam Phelan (LANL)
Spin-Orbital-Polarized Density Functional Theory Approach to the Materials Physics of Pu Metal and its Alloys: Theory
12:10–12:30PM EDT
Babak Sadigh (LLNL), Per Soderlind (LLNL), Kyoung E. Kweon (LLNL)
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