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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
National Meeting
2020 ANS Annual Meeting
June 8–11, 2020
Online Virtual Meeting
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 2020
Jan 2020
Latest Journal Issues
Nuclear Science and Engineering
June 2020
Nuclear Technology
Fusion Science and Technology
April 2020
Latest News
U.S. nuclear capacity factors: Resiliency and new realities
In the early years of the Nuclear News capacity factors survey, any factor over 70 was deemed excellent; any factor under 50 was considered poor. By that standard, all but two operating U.S. power reactors chalked up excellent performance during 2017–2019. A record 809.4 TWh of electricity was generated in the United States from nuclear energy in 2019, according to the U.S. Energy Information Administration (EIA), besting the record of 807.1 TWh set in 2018.
Nuclear News staff developed the capacity factors survey in the early 1980s as a way to identify the most productive reactors in an expanding fleet. Fleet improvement was the industry’s self-identified goal, but no one could anticipate the startlingly rapid pace of improvement, spurred by the Institute of Nuclear Power Operations (INPO), which boosted fleetwide performance to highs that continue today.
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Downloads: Download Nomination Form
Nomination Deadline
March 1
Presented at the
Annual Meeting
Monetary Award
$2,500
The Samuel Untermyer II Medal recognizes pioneering work in the development of safe, water-cooled nuclear power reactors. The award consists of an engraved bronze medal and a monetary award of $2,500. The award is to be made no more frequently than once per year and is to be conferred normally during the Annual Meeting of the Society.
Nominees may be from any nation, but they must not be deceased at the time the awardee is selected. The nominee need not be an ANS member.
The award was established in 2004 to honor Samuel Untermyer II and to provide recognition of pioneering work in the development of safe, water-cooled nuclear power reactors. The award is funded by a contribution of $78,253 from the Untermyer’s Charitable Remainder Trust in 2001 upon his death.
Nominations must include the completed nomination form accompanied by the following supporting documents:
Nomination forms and supporting documents (in Word or Adobe Acrobat) should be emailed to honors@ans.org.
Hard copies can be mailed to:
Honors and AwardsAmerican Nuclear Society555 N. Kensington AvenueLa Grange Park, IL 60526-5535
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