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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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!
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May 2025
Jan 2025
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Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
Latest News
ANS’s Mentor Match applications open
Applications are now open for the American Nuclear Society’s newly redesigned mentoring program. Mentor Match is a unique opportunity available only to ANS members that offers year-round mentorship and networking opportunities to Society members at any point in their education.
The deadline to apply for membership in the inaugural summer cohort, which will take place July 1–August 31, is June 20. The application form can be found here.
VIEW RECIPIENTSSUBMIT NOMINATION
Nomination Deadline
August 1
Presented at the
Winter Conference
Monetary Award
$1,000
The Theos J. (Tommy) Thompson Award to recognize outstanding lifetime contributions to the field of nuclear reactor safety.
Nominees need not be ANS members.
The award consists of a plaque and a $1,000 monetary award which is presented by the chair of NISD during the ANS Winter Conference each year.
This award was established by the Nuclear Installations Safety Division (formerly the Nuclear Reactor Safety Division) in 1980 as a memorial award to the late Professor Theos J. (Tommy) Thompson of MIT, who made outstanding contributions to nuclear reactor safety, including being the principal author of a pioneering textbook on the subject. This award is funded by the operating budget of NISD.
The NISD Honors and Awards Committee administers this award. That committee establishes the evaluation criteria, solicits the nominations, and determines the recipient. The award is made to individuals selected by the NISD Honors and Awards Committee in recognition of outstanding contributions in the field of nuclear reactor safety. The ANS Honors and Awards Committee is available for consultation and review as appropriate.
Nominations must include the completed nomination form accompanied by the following supporting documents:
View Award