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タイトル: Design of conduction-cooled HTS coils for a rotating gantry
著者: Takayama, Shigeki
Koyanagi, Kei
Yamaguchi, Akiko
Tasaki, Kenji
Kurusu, Tsutomu
Ishii, Yusuke
Amemiya, Naoyuki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-3000-864X (unconfirmed)
Ogitsu, Toru
Noda, Koji
著者名の別形: 雨宮, 尚之
キーワード: Carbon ion cancer therapy
rotating gantry
high temperature superconductor
conduction-cooled
thermal runaway
発行日: 15-Jul-2015
出版者: Elsevier B.V.
誌名: Physics Procedia
巻: 67
開始ページ: 879
終了ページ: 884
抄録: Carbon ion cancer therapy is becoming more widespread due to its high curative effects and low burden on patients. Carbon ions are delivered to patients through electromagnets on a rotating gantry.A rotating gantry is attractive because it allows carbon ions to irradiate a tumor from any direction without changing the posture of the patient. On the other hand, because of the high magnetic rigidity of carbon ions, the weight of a rotating gantry for carbon cancer therapy is about three times higher than one for proton cancer therapy, according to our estimation. The use of high-temperature superconducting (HTS) magnets has been considered for reducing the size of the rotating gantry for carbon cancer therapy. The target weight is 200 t or less, which is equivalent to the weight of a typical rotating gantry for proton cancer therapy.In this study, the magnet layout of the rotating gantry and the superconducting magnets were designed from the viewpoint of beam optics.When applying high-temperature superconductors to accelerator magnets, there are some issues that should be considered, for example, the influence of tape magnetization and manufacturing accuracy on the field quality, the thermal stability of the conduction-cooled HTS coils under an alternating magnetic field, and methods to protect the coils from thermal runaway caused by an anomalous thermal input such as that due to beam loss. First, the thermal stability of the conduction-cooled HTS coils was simulated numerically, and the thermal runaway current was calculated in a static situation.
著作権等: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license. (http://creativecommons.org/licenses/by-nc-nd/4.0/).
URI: http://hdl.handle.net/2433/218203
DOI(出版社版): 10.1016/j.phpro.2015.06.148
出現コレクション:学術雑誌掲載論文等

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