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
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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.
Jeff A. Halfinger, Michael D. Haggerty
Nuclear Technology | Volume 178 | Number 2 | May 2012 | Pages 164-169
Technical Paper | Small Modular Reactors / Fission Reactors | doi.org/10.13182/NT11-65
Articles are hosted by Taylor and Francis Online.
The Babcock & Wilcox Company launched an aggressive program in 2008 to develop a scalable nuclear reactor using its unique history of over 50 years of continuous reactor engineering and manufacturing. The B&W mPower™ reactor design is a passively safe advanced light water reactor (ALWR) with a below-ground containment structure. This optimized ALWR represents true generation III+ nuclear technology that B&W believes can be certified, manufactured, and operated within today's existing U.S. regulatory, industrial supply chain, and utility operational infrastructure.The mPower reactor takes a competitive approach to plant operations and emphasizes safety and compliance with the EPRI Utilities Requirements Document (URD), incorporating decades of lessons learned from the operating fleet. The design's scalability, ease of transport, and independence from water rights for secondary heat rejection make it well suited for deployment in a wide range of applications, including incremental additions to the base load, load-following conditions, and industrial applications. The mPower reactor is also a viable solution to retrofit aging conventional power plants, leveraging the existing plant siting and transmission system.