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TY - CONF AU - Tsutsui, H. AU - Arakawa, Y. AU - Ebara, Y. AU - Hashimoto, A. AU - Hirabayashi, M. AU - Hirayama, T. AU - Kamiguchi, N. AU - Kanakura, J. AU - Kumata, Y. AU - Mikami, Y. AU - Mitsubori, H. AU - Miyashita, T. AU - Morie, T. AU - Murata, H. AU - Oda, H. AU - Ookubo, H. AU - Sakemi, T. AU - Sano, M. AU - Tachikawa, T. AU - Takahashi, T. AU - Taki, K. AU - Tsurudome, T. AU - Watanabe, T. AU - Yoshida, J.Y. ED - Conradie, Lowry ED - De Villiers, John Garrett ED - Schaa, Volker RW TI - Current Status of Sumitomo’s Superconducting Cyclotron Development for Proton Therapy J2 - Proc. of Cyclotrons2019, Cape Town, South Africa, 23-27 September 2019 CY - Cape Town, South Africa T2 - International Conference on Cyclotrons and their Applications T3 - 22 LA - english AB - Sumitomo Heavy Industries, Ltd. is developing a com-pact superconducting isochronous 230 MeV cyclotron for proton therapy. It is designed to produce 1000 nA proton beams for high dose rate cancer treatment. The cyclotron magnet, which includes a liquid-helium-free cryostat, has been fabricated and the magnetic field has been measured. Magnetic field distribution and pa-rameters such as horizontal and vertical tunes agreed well with the original design. A 120 kW solid-state RF system is being tested. Other components such as the ion source and electrostatic deflector are being fabricated. After the testing of individual components, they will be assembled and beam testing will be scheduled at a new test site. PB - JACoW Publishing CP - Geneva, Switzerland SP - 340 EP - 343 KW - cyclotron KW - extraction KW - cavity KW - proton KW - ion-source DA - 2020/06 PY - 2020 SN - 978-3-95450-205-9 DO - doi:10.18429/JACoW-Cyclotrons2019-FRA02 UR - http://jacow.org/cyclotrons2019/papers/fra02.pdf ER -