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Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
Hiroshi Horiike, Masato Akiba, Masanori Araki, Masaaki Kuriyama, Shinzaburo Matsuda, Mamoru Matsuoka, Yoshihiro Ohara, Yoshikazu Okumura, Kiyoshi Shibanuma, Shigeru Tanaka
Fusion Science and Technology | Volume 7 | Number 2 | March 1985 | Pages 171-179
Technical Paper | Plasma Heating System | doi.org/10.13182/FST85-A24532
Articles are hosted by Taylor and Francis Online.
Countermeasures against mechanical warpage of the extraction electrode for the JT-60 ion source were studied experimentally. A conventional plasma electrode, consisting of a single thin plate, exhibited unacceptably large deflections during long-pulse operation at extraction power levels exceeding 75 kV, 35 A. To measure the deflection characteristics of this electrode, hot water was circulated in the electrode cooling channels. Results from this test showed that an unacceptably large warpage occurs at temperatures moderately below the operation temperature. To suppress warpage, two modified electrodes were fabricated and tested. In the first design, the electrode was stiffened by adding material at the edges of the aperture area. In the second design, constraints on the thermal expansion of the aperture area were released by segmenting the aperture area and joining them to the stiff electrode frame through a bellows. Both designs successfully reduced electrode deflection and were used to extract 100-kV, 40-A, 10-s beams. These tests provided a measure of the permissible deflection level of the plasma electrode.