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| P15 · Orbit following calculation of energetic ions for design of ferritic insertion on JT-60U K. Shinohara, Y. Suzuki, S. Sakurai, K. Masaki, T. Fujita, and Y. Miura Naka Fusion Research Establishment, Japan Atomic Energy Agency, Naka, Ibaraki, 311-0193, Japan
Abstract: The design work for ferritic inserts is described from the viewpoint of the behavior of energetic ions. The confinement of energetic ions and the absence of the unfavorable heat flux on the first wall was assessed by using the Fully three Dimensional magnetic field OFMC code, which was developed for a ferrite insert program in JFT-2M. In the final design, the confinement of energetic ions is improved by a factor of about 1.3 times in a particular large volume plasma with Bt0 = 1.9T.
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