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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jul 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
August 2026
Nuclear Technology
Fusion Science and Technology
Latest News
Mark Peters: Building on a strong foundation
Summer at the American Nuclear Society carries with it a sense of renewed momentum as the incoming president takes office and starts making plans for the year ahead. This has been particularly true in the last few years, as nuclear energy moves into a new era marked by broader public interest, stronger policy support, and a growing sense of possibility across the field. Mark Peters, the Society’s 72nd president, shares that optimism—and he is focused on turning it into results.
Nomination Deadline
March 1 &
August 1
Presented at the
Annual & Winter Conference
Award
$2,500* and a Bronze Medallion
The Untermeyer & Cisler Reactor Technology Medal recognizes an individual(s) who have made outstanding scientific, engineering, or management contributions to the advancement of nuclear reactor technology. The contributions may involve technology development, reactor system design, safety, deployment, or operation. The award scope considers any fission-based reactor technology.
The award consists of an engraved medal and a monetary award of $2500*. The award is to be made twice per year, normally conferred during the ANS Annual or Winter Conference.
Nominees may be from any nation, must be living at the time the awardee is selected, and do not need to be ANS members.
*In lieu of a cash award, recipients can opt for travel reimbursement up to the award amount.
This award is a combination of the earlier independent Untermyer, Cisler, and Reactor Technology awards. The three awards were combined in 2023 by the ANS Honors & Awards Committee.
Nominations must include the completed nomination form accompanied by the following supporting documents:
The selection committee consists of seven (7) members – six (6) from the Honors and Awards Committee and one (1) from Atomic Energy Society of Japan, appointed by AESJ. They review the nominations and make their recommendation to the chair of the Honors and Awards Committee. If the committee determines that there is no candidate of sufficient merit, the committee may recommend that the award not be made in that year.
View Award