Performance of HIMAC |
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| Institution: | 1. Research Center of Charged Particle Therapy, National Institute of Radiological Sciences, 9-1, Anagawa-4-chome, Inage-ku, Chiba-shi, Chiba 263, Japan;2. Research Center for Nuclear Physics, Osaka University, 10-1, Mihogaoka, Ibaraki-shi, Osaka 567, Japan;3. Regional Hygiene Division, Hyogo Prefectual Government, 10-1, Shimoyamate-douri-5-chome, Chuo-ku, Kobe-shi, Hyogo 650, Japan;1. Department of Mechanical Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka 804-8550, Japan;2. Department of Mechanical Systems Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami-gun, Okinawa 903-0213, Japan;3. Department of Mechanical Engineering, Graduate School of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka 804-8550, Japan;1. Central Glass & Ceramic Research Institute, Council of Scientific and Industrial Research, Kolkata 700032, India;2. Department of Physics, Bengal Engineering & Science University, Howrah 711103, India;3. Institute for Plasma Research, Gandhinagar 302428, India;1. Department of Neurology, University of Washington, Seattle, Washington;2. Department of Neurology, Northwestern University, Chicago, Illinois;3. Department of Cardiology, Northwestern University, Chicago, Illinois;1. Immobilisation Science Laboratory, Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, UK;2. Faculty of Science, Technology and Human Development, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia |
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| Abstract: | The NIRS heavy-ion two-synchrotron medical facility, HIMAC, was approved in the 1987 fiscal year and clinical trials were started in late June 1994 as previously arranged. The operation experiences show that the entire HIMAC facility can work well with high stability and excellent reproducibility. For example, the intensity of beam extracted slowly from the rings can be reduced as low as 500 particles per pulse because stable and reproducible acceleration can be achieved in the rings in spite of no beam feedback. This performance enables direct counting of the beam and its fragments in the preparatory experiments toward clinical treatments and provides a promising basis for acceleration and storage of radioactive beams toward simultaneous treatment and diagnosis in future. |
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