| Project/Area Number |
23246053
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Waseda University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YAMAKAWA Hiroshi 早稲田大学, 理工学術院, 教授 (00097263)
WAKAO Shinji 早稲田大学, 理工学術院, 教授 (70257210)
WANG Xudong 早稲田大学, 理工学術院, 助教 (20550346)
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| Co-Investigator(Renkei-kenkyūsha) |
FUKUDA Mitsuhiro 大阪大学, 核物理研究センター, 准教授 (60370467)
UEDA Hiroshi 大阪大学, 核物理研究センター, 准教授 (10367039)
MIYAHARA Nobuyuki (独)放射線医学総合研究所, 放射線発生装置利用技術開発課, 課長 (60260238)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥48,750,000 (Direct Cost: ¥37,500,000、Indirect Cost: ¥11,250,000)
Fiscal Year 2013: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2012: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2011: ¥20,670,000 (Direct Cost: ¥15,900,000、Indirect Cost: ¥4,770,000)
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| Keywords | 加速器 / 超伝導材料 / 電気機器工学 / 量子ビーム / 癌 |
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| Research Abstract |
Our objective is to develop an Advanced Hybrid Cyclotron (AHC) using High-Temperature Superconducting (HTS) coil technology with a compact body, high efficiency, and high performance in heavy particle cancer therapy. For cyclotron application, high accuracy magnetic field distribution with isochronous field and azimuthally varying field (AVF) are required. We proposed a coil system be composed of HTS air-core split coils for isochronous field and HTS air-core spiral sector coils for AVF. In this study, to realize the HTS coil system technology for AHC, we performed the following three issues: 1) optimal design of HTS coil system; 2) reduction of irregular magnetic field caused by coil winding error, deformation due to thermal and electromagnetic stress, and screening current induced in tape type superconductor such as Y-system coated conductor; and 3) Experiments on effects of irradiation on commercially available Bi-2223 and YBCO superconducting tapes.
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