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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
The Frisch-Peierls memorandum: A seminal document of nuclear history
The Manhattan Project is usually considered to have been initiated with Albert Einstein’s letter to President Franklin Roosevelt in October 1939. However, a lesser-known document that was just as impactful on wartime nuclear history was the so-called Frisch-Peierls memorandum. Prepared by two refugee physicists at the University of Birmingham in Britain in early 1940, this manuscript was the first technical description of nuclear weapons and their military, strategic, and ethical implications to reach high-level government officials on either side of the Atlantic. The memorandum triggered the initiation of the British wartime nuclear program, which later merged with the Manhattan Engineer District.
Technical Session|Sponsored by OPD
Wednesday, November 20, 2024|8:00–9:45AM EST|Grouper
Session Chair:
Kenny Fossum (INL)
Alternate Chair:
Mohammad Amer Allaf (Univ. Wisconsin, Madison)
Session Organizer:
William N. Mann
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Direct Contact Condensation Effects in Water-Cooled SMR Systems
8:00–8:20AM EST
Kenneth Lee Fossum (INL), Piyush Sabharwall (INL), Clay Lietwiler (Holtec Int'l)
Paper
The Fuel-Clad Transient Behavior of Uprated NuScale Using MELCOR
8:20–8:40AM EST
Mohammad Amer Allaf (Univ. Wisconsin, Madison), Émile Zaccomer (École Polytechnique), Grace Ejnik (Univ. Wisconsin, Madison), WooHyun Jung (Univ. Wisconsin, Madison), Michael Corradini (Univ. Wisconsin, Madison), Juliana Pacheco Duarte (Univ. Wisconsin, Madison)
High-Resolution Temperature Measurements on Sodium Heat Pipes Applied to Microreactors
8:40–9:00AM EST
Erik M. Tillman (Univ. Wisconsin, Madison), Taigo A. Moreira (Univ. Wisconsin, Madison), Gregory F. Nellis (Univ. Wisconsin, Madison), Mark H. Anderson (Univ. Wisconsin, Madison)
High Performance Heat Pipe Power Transient Testing at SPHERE Facility
9:00–9:20AM EST
Zachary Sellers (INL), Jeremy Hartvigsen (INL), Piyush Sabharwall (INL)
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