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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
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|Reactor Design and Analysis
Tuesday, April 23, 2024|10:15AM–12:00PM PDT|Franciscan C
Session Chair:
Ishita Trivedi (INL)
Alternate Chair:
Yan Cao (ANL)
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Comparative Analysis on the Passive Flow Rate Control in the Load-Follow Simulation for Holos-Quad Microreactor
10:15–10:35AM PDT
Sooyoung Choi (Univ. Michigan), Qicang Shen (Univ. Michigan), Claudio Filippone (HolosGen), Brendan Kochunas (Univ. Michigan)
Paper
Modeling Nuclear Thermal Propulsion Using Nodal Diffusion Codes with Jacobian-Free Newton Krylov Generated Correction Parameters
10:35–10:55AM PDT
Jacob Smith (Georgia Tech), Dan Kotlyar (Georgia Tech)
Concept Study of a Fission Fragment Propulsion Nuclear System
10:55–11:15AM PDT
Dacai Zhang (Tsinghua Univ.), Xirui Zhang (Tsinghua Univ.), Zhechuan Tan (Tsinghua Univ.), Yuanhao Gou (Tsinghua Univ.), Minzhi Xiong (Tsinghua Univ.), Ganglin Yu (Tsinghua Univ.)
Mass and Power Estimations of Moderated and Unmoderated HALEU Fueled Heat-Pipe Reactors for Space Applications
11:15–11:35AM PDT
Riccardo Boccelli (Politecnico di Milano), Marco E. Ricotti (Politecnico di Milano), Angelica Peressotti (Thales Alenia Space Italia), Stefano Lorenzi (Politecnico di Milano), Andrea D'Ottavio (Thales Alenia Space Italia)
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