ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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
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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
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|Severe Accidents
Tuesday, August 22, 2023|3:30–5:10PM EDT|Fairchild East/West
Session Chair:
Mitchell T. Farmer
Alternate Chair:
Marco Pellegrini
Session Organizer:
David L. Luxat
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Determination of Effective Heat Transfer Coefficients Using the Decomposition Parameters of Silicate Concrete, the Melt Composition, and the Heating Power with AC²-COCOSYS
3:30–3:50PM EDT
Maximilian Hoffmann (Ruhr Univ. Bochum), Marco K. Koch (Ruhr Univ. Bochum)
Paper
The Role of Zr-Oxidation During Molten Core-Concrete Interaction
3:50–4:10PM EDT
Xiaoyang Gaus-Liu (Karlsruhe Institute of Technology)
Mesh Sensitivity Analysis of the CFD Model of the Core Catcher of the ALLEGRO Reactor
4:10–4:30PM EDT
Jan Komrska (Czech Technical Univ. Prague), Pavel Zacha (Czech Technical Univ. Prague), Petr Vacha (UJV Rez)
Steam Explosion Retardant for Long-Term Coolability
4:30–4:50PM EDT
Masahiro Furuya (Waseda Univ.), Takahiro Arai (CRIEPI)
Thermodynamic Calculation Methodology of Specifically Designed Sacrificial Material for Ex-Vessel Core Catcher
4:50–5:10PM EDT
Erhui Chen (China Nuclear Power Engineering Co.), Li Zhang (China Nuclear Power Engineering Co.), Nan Li (China Nuclear Power Engineering Co.), Xiao Zeng (China Nuclear Power Engineering Co.), Qiang Guo (China Nuclear Power Engineering Co.), Yidan Yuan (China Nuclear Power Engineering Co.), Xiao-Gang Lu (Shanghai Univ.), Yeqing Ding (Shanghai Univ.)
Presentation Video (Visible to Attendees)
To join the conversation, you must be logged in and registered for the meeting.
