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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Nuclear and Emerging Technologies for Space (NETS-2022) Plenary SPeaker
Tactical Technology Office (TTO)
Program Manager
DARPA
Maj. Nathan Greiner joined DARPA in July 2018 as a program manager in the Tactical Technology Office. His research interests include advanced power and propulsion technologies for land, sea, air, and space applications.
Before joining DARPA, Maj. Greiner completed a one-year fellowship at the Oak Ridge National Laboratory in Oak Ridge, Tennessee, where he focused on materials research. Previously, he served as a deputy branch chief and hypersonics research engineer in the U.S. Air Force Research Laboratory’s Aerospace Systems Directorate at Wright-Patterson Air Force Base, Ohio. He also has held positions as a liaison officer with U.S. Special Operations Command at Camp Lemonnier, Djibouti, and program manager for U.S. Special Operations Command at MacDill Air Force Base, Florida.
Maj. Greiner holds a Doctor of Philosophy in aeronautical engineering from the Air Force Institute of Technology, a Master of Science in mechanical engineering from the University of Utah, and a Bachelor of Science in mechanical engineering from the University of St. Thomas in St. Paul, Minnesota.
Last modified April 27, 2022, 4:36pm EDT
