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Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
May 2025
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April 2025
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Latest News
General Kenneth Nichols and the Manhattan Project
Nichols
The Oak Ridger has published the latest in a series of articles about General Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historian David Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.
As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”
Technical Session|Verification, Validation and Uncertainty Quantification
Tuesday, August 22, 2023|10:45AM–12:25PM EDT|Embassy
Session Chair:
Joshua Kaizer (USNRC)
Session Organizers:
Jinzhao Zhang (Tractebel)
Alternate Chair:
Rui Hu (ANL)
Track Organizer:
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Verification of Transient Phenomena in RELAP5-3D: Part 1 Vessel Boiloff
10:45–11:05AM EDT
Robert P. Martin (BWXT Advanced Technologies)
Paper
Presentation Slides (Visible to Attendees)
Verification of Transient Phenomena in RELAP5-3D: Part 2 Turbomachinery
11:05–11:25AM EDT
Robert P. Martin (BWXT Advanced Technologies), Michael S. Bradbury (Information Systems Laboratories)
Two-Phase Transient Modeling of a Large Scale RCCS with RELAP5-3D
11:25–11:45AM EDT
Zhiee Jhia Ooi (ANL), Qiuping Lv (ANL), Rui Hu (ANL), Matthew Jasica (ANL), Darius Lisowski (ANL)
Assessment of the Choked Flow Model of RELAP5 for the Application of Inverse Quantification Methods
11:45AM–12:05PM EDT
Jordi Freixa (Univ. Politècnica Catalunya), Víctor Martínez-Quiroga (Univ. Politècnica Catalunya), Gregory Perret (Paul Scherrer Institute)
A Methodology to Evaluate the Impact of Physical Distortions on Systems' Code Assessment
12:05–12:25PM EDT
Marcos G. Ortiz (Information Systems Laboratories)
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