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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
Fusion Science and Technology
Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Top Tier Award
Topic: Nuclear Technology
VIEW RECIPIENTSSUBMIT NOMINATION
Nomination Deadline
March 1
Presented at the
Annual Conference
Award
Engraved Bronze Medal
The Walter H. Zinn Medal recognizes an individual for outstanding contributions to the advancement or implementation of nuclear technology. This award is to recognize notable and sustained technical contribution, leadership, or other service that has not been widely recognized.
Nominees may be from any nation, but they must not be deceased at the time the awardee is selected and need not be ANS members.
The award consists of an engraved medal. It is to be made no more frequently than once per year and is normally conferred during the ANS Annual Conference.
This award was established by the Operations & Power Division in 1976 with the inaugural award going to Walter H. Zinn, a pioneer in nuclear reactor development and the Society's first President, for his many contributions to the development of nuclear power. Subsequent recipients have been selected by the Operations & Power Division Honors and Awards Committee to recognize individuals who have made outstanding contributions to nuclear power. In August 2018, the OPD and ANS H&A Committee elevated this award to a national Top Tier ANS award, and it was renamed the Walter H. Zinn Medal.
Nominations must include the completed nomination form accompanied by the following supporting documents:
View Award
