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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Sunday, April 27, 2025|8:00AM–5:00PM MDT
Cost: $99
Limited Space
Organizer: Javier Ortensi (Idaho National Laboratory), Changho Lee (Argonne National Laboratory)
The Griffin workshop will provide participants with a comprehensive understanding and hands-on training of advanced reactor simulation capabilities in Griffin.
Morning session (8am – 12pm): focuses on prismatic-type high temperature reactor (HTR) applications, including hands-on training in mesh and cross section generation, depletion, and core transport calculations in steady-state and transient conditions.
Afternoon session (1pm – 5pm): focuses on fast reactor (FR) applications, including hands-on training in mesh generation and cross section generation workflow, core transport calculations in steady-state and transient conditions, and fuel management capability.
The registration deadline to ensure software download for the hands-on workshop is Wednesday, April 9th, at midnight.
