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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
High-temperature plumbing and advanced reactors
The use of nuclear fission power and its role in impacting climate change is hotly debated. Fission advocates argue that short-term solutions would involve the rapid deployment of Gen III+ nuclear reactors, like Vogtle-3 and -4, while long-term climate change impact would rely on the creation and implementation of Gen IV reactors, “inherently safe” reactors that use passive laws of physics and chemistry rather than active controls such as valves and pumps to operate safely. While Gen IV reactors vary in many ways, one thing unites nearly all of them: the use of exotic, high-temperature coolants. These fluids, like molten salts and liquid metals, can enable reactor engineers to design much safer nuclear reactors—ultimately because the boiling point of each fluid is extremely high. Fluids that remain liquid over large temperature ranges can provide good heat transfer through many demanding conditions, all with minimal pressurization. Although the most apparent use for these fluids is advanced fission power, they have the potential to be applied to other power generation sources such as fusion, thermal storage, solar, or high-temperature process heat.1–3
Technical Session|Sponsored by NCSD
Tuesday, November 19, 2024|10:00–11:45AM EST|Fantail
Session Chair:
James Rendell (U.K. National Nuclear Laboratory)
Alternate Chair:
Amy E. van der Vyver
Session Organizer:
Benjamin Martin
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Recognizing Unrecognized Sources of Uncertainty (USU) in Nuclear Data
10:00–10:20AM EST
Jesse M. Brown (ORNL), Vladimir Sobes (Univ. Tennessee, Knoxville), Dorothea Wiarda (ORNL), Goran Arbanas (ORNL)
Paper
Correlated Sampling to Reduce the Uncertainty of Combinations of keff Sensitivities
10:20–10:40AM EST
Jeffrey A. Favorite (LANL)
Quantifying the Impact of Isotopically Dependent Fuel TSLs on LCT Systems in VALID
10:40–11:00AM EST
Chris W. Chapman (ORNL), William J. Marshall (ORNL)
Low Energy Light Output Measurement of EJ301D and D-Stilbene
11:00–11:20AM EST
C.A. Irvine (LANL), T.C. Borgwardt (LANL), R.A. Weldon Jr. (LANL)
Resolved Resonance Evaluation for 95Mo from Thermal to 5,000 eV
11:20–11:40AM EST
Luiz Leal (ORNL), Nicolas Leclaire (IRSN), Travis Greene (ORNL), Marco T. Pigni (ORNL), Klaus Guber (ORNL)
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