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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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Jun 2025
Jan 2025
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Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
Technical Session
Tuesday, September 27, 2022|10:00AM–12:05PM PDT|Harbor
Session Chair:
Hideo Hirayama (High Energy Accelerator Research Organization, KEK)
Alternate Chair:
Maha Bouhadida (IRSN)
Session Organizer:
Thomas M. Miller (ORNL)
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Investigation and Analysis of the TEPCO's Fukushima Daiichi NPS Accident (March 2021)
10:00–10:25AM PDT
Masaya Yasui (Nuclear Regulatory Agency)
Presented by Kohei Iwanaga (Nuclear Regulatory Agency Japan)
Paper
Estimation of 137Cs Activity Using Pinhole Gamma Camera at Unit 2 Operation Floor in Fukushima Daiichi Nuclear Power Station
10:25–10:50AM PDT
Katsumi Hayashi (Nuclear Regulation Authority), Hideo Hirayama (High Energy Accelerator Research Organization), Kohei Iwanaga (Nuclear Regulation Authority), Kenjiro Kondo (High Energy Accelerator Research Organization), Seishiro Suzuki (Nuclear Regulation Authority)
Estimated Cs-137 Radioactivity Deposited in the Gap Between the Top and Middle Cover of the Shield Plug in Fukushima Daiichi Nuclear Power Station Unit 2
10:50–11:15AM PDT
Kohei Iwanaga (Nuclear Regulatory Agency), Hideo Hirayama (High Energy Accelerator Research Organization), Katsumi Hayashi (Nuclear Regulatory Agency), Kenjiro Kondo (Nuclear Regulatory Agency), Seishiro Suzuki (Nuclear Regulatory Agency), Zenko Yoshida (Nuclear Regulatory Agency)
Radiation Environment Around the Contaminated Water Storage Tank Including Highly Concentrated 90Sr/90Y at Fukushima Daiichi Nuclear Power Station
11:15–11:40AM PDT
Hideo Hirayama (Nuclear Regulatory Agency), Kenjiro Kondo (Nuclear Regulatory Agency), Seishiro Sszuki (Nuclear Regulatory Agency), Shimpei Hamamoto (Nuclear Regulatory Agency), Kohei Iwanaga (Nuclear Regulatory Agency)
Neutron Spectra Reconstruction with an Artificial Neural Network Trained with a Large Built Dataset
11:40AM–12:05PM PDT
M. Bouhadida (IRSN), M. Brovchenko (IRSN), T. Vinchon (IRSN), W. Monange (IRSN), F. Trompier (IRSN)
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