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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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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Dec 2025
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Nuclear Science and Engineering
January 2026
Nuclear Technology
December 2025
Fusion Science and Technology
November 2025
Latest News
BWRX-300 SMR passes U.K. regulatory milestone
GE Vernova Hitachi Nuclear Energy’s BWRX-300 small modular reactor has completed the second step of the generic design assessment (GDA) process in the United Kingdom. In this step, the U.K. Office for Nuclear Regulation, the Environment Agency, and Natural Resources Wales did not identify “any fundamental safety, security safeguard or environmental protection shortfalls with the design of the BWRX-300.” Step 1 was completed in December 2024.
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