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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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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Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Isao Murata, Shingo Tamaki, Sachie Kusaka, Indah Rosidah Maemunah, Fuminobu Sato, Hiroyuki Miyamaru, Shigeo Yoshida
Fusion Science and Technology | Volume 79 | Number 4 | May 2023 | Pages 465-475
Technical Paper | doi.org/10.1080/15361055.2022.2151280
Articles are hosted by Taylor and Francis Online.
A fusion reactor is known as a neutron-rich nuclear energy source. In this paper, neutrons are utilized to form an epithermal neutron irradiation field for boron neutron capture therapy (BNCT). Using the International Thermonuclear Experimental Reactor (ITER) facility, a beam shaping assembly (BSA) was designed and placed just before the biological shield. Treatments were planned to be carried out just outside the biological shield. An opening was prepared in the vacuum vessel to guide deuteron-triton neutrons to the BSA. The BSA is about 1 m in thickness, and on the outside surface of the BSA, an epithermal neutron flux of 1 × 109 n/s‧cm−2 was aimed. As a result of the design, the irradiation field successfully met the design criteria of the BSA advocated by the International Atomic Energy Agency. The BSA moderator consists of a first filter of 45-cm-thick iron and a second filter of 70-cm-radius and 40-cm-thick AlF3. The epithermal neutron beam was available for diameters from 10 to 20 cm to cope with various sizes of tumors. Also, a titanium layer was specially introduced to remove fast neutrons just above 10 keV to reduce the fast neutron contribution. In addition, a caldera-shaped collimator was set just outside of the BSA to form a broad beam and to make the current-to-flux ratio larger than 0.7. It was shown from the present design that the performance was confirmed to be excellent compared to other BNCT facilities available at present, meaning that even deep-seated cancer treatment could be realized in the future in ITER.