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Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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Fusion Science and Technology
Latest News
Take steps on SNF and HLW disposal
Matt Bowen
With a new administration and Congress, it is time once again to ponder what will happen—if anything—on U.S. spent nuclear fuel and high-level waste management policy over the next few years. One element of the forthcoming discussion seems clear: The executive and legislative branches are eager to talk about recycling commercial SNF. Whatever the merits of doing so, it does not obviate the need for one or more facilities for disposal of remaining long-lived radionuclides. For that reason, making progress on U.S. disposal capabilities remains urgent, lest the associated radionuclide inventories simply be left for future generations to deal with.
In March, Rick Perry, who was secretary of energy during President Trump’s first administration, observed that during his tenure at the Department of Energy it became clear to him that any plan to move SNF “required some practical consent of the receiving state and local community.”1
Teruya Tanaka, Akio Sagara, Juro Yagi, Takeo Muroga
Fusion Science and Technology | Volume 75 | Number 8 | November 2019 | Pages 1002-1009
Technical Paper | doi.org/10.1080/15361055.2019.1658044
Articles are hosted by Taylor and Francis Online.
In 2013–2014, the FliNaK/LiPb twin-loop system Operational Recovery Of Separated Hydrogen and Heat Inquiry-2 (Oroshhi-2) was constructed at National Institute for Fusion Science as a liquid blanket collaboration platform. Inventory of FLiNaK and LiPb in the system is ~120 L for each, and both loops are providing a stable circulation environment. Oroshhi-2 has flexible capability to perform integrated experiments by installing all the components required for the liquid blanket system in one circulating loop at the same time. A 3-T superconducting magnet and 1-T permanent magnet enable simulation of the reactor environment except for radiations. As of the year of 2018, eight experimental topics related to liquid blanket technologies have been performed, prepared, or proposed as the first step of the Oroshhi-2 experiments. These topics cover the various blanket issues widely from first wall to secondary loop for power generation.
