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公开(公告)号：US11883683B2
公开(公告)日：2024-01-30
申请号：US17048639
申请日：2019-04-11
发明人： Yusuke Fujii , Ryuya Ando , Manabu Aoki , Kikuo Umegaki , Shinichi Shimizu , Taeko Matsuura , Hiroki Shirato
CPC分类号： A61N5/1039 , A61B5/055 , A61B6/02 , A61N5/1049 , A61N5/1081 , G01R33/421 , G01R33/4215 , A61B5/0035 , A61B6/032 , A61N5/1071 , A61N2005/1055 , A61N2005/1061 , A61N2005/1092 , G01R33/3806 , G01R33/4812
摘要： A particle therapy system includes an accelerator 1 which generates a particle beam for extraction, an irradiation apparatus 21 which irradiates the particle beam to an irradiation target 26, a gantry 18 which rotates together with the irradiation apparatus 21, and an MRI apparatus 50 which rotates together with the gantry 18. The MRI apparatus 50 includes a magnetic circuit composed of an iron core 60 and a plurality of coils 61 serving as a magnetic flux source. The iron core 60 includes two oppositely disposed magnetic poles 63A and 63B, and a return yoke 64 for connecting the magnetic poles 63A and 63B. The magnetic poles 63A, 63B have cavities 65A, 65B. The particle beam passing through the cavity 65A is irradiated to the irradiation target 26.
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2.发明申请公开(公告)号：US20140329688A1
公开(公告)日：2014-11-06
申请号：US14360653
申请日：2012-11-28
申请人： HITACHI, LTD
发明人： Manabu Aoki , Ryuya Ando , Yukihiro Murata , Ryoji Nakagawa
IPC分类号： H01F6/04 , G01R33/3815
CPC分类号： H01F6/04 , G01R33/3804 , G01R33/3815 , H01F6/02 , Y10S505/844 , Y10S505/85 , Y10S505/879 , Y10S505/893
摘要： A superconducting magnet device is configured to include: a refrigerant circulation flowpath in which a refrigerant (R) circulates; a refrigerator for cooling vapor of the refrigerant (R) in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant (R); a protective resistor thermally contacting the superconducting coil and having an internal space (S); a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant having a higher boiling point than the refrigerant (R) and frozen by the refrigerant (R) to the internal space (S) in the protective resistor; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.
摘要翻译： 超导磁体装置构成为包括：制冷剂循环流路，其中制冷剂（R）循环; 用于冷却制冷剂循环流路中的制冷剂（R）的蒸气的冷冻机; 由循环制冷剂（R）冷却的超导线圈; 与所述超导线圈热接触并具有内部空间（S）的保护电阻器; 高沸点制冷剂供给部，用于供给比制冷剂（R）沸点高的高沸点制冷剂，并由制冷剂（R）冻结到保护电阻体内的内部空间（S）; 以及真空绝热容器，用于至少容纳制冷剂循环流路，超导线圈和保护电阻。
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公开(公告)号：US08989828B2
公开(公告)日：2015-03-24
申请号：US13899673
申请日：2013-05-22
申请人： Hitachi, Ltd.
发明人： Ryoji Nakagawa , Ryuya Ando , Manabu Aoki
摘要： A superconducting magnet apparatus includes: a bobbin around which a superconducting coil is wound, the bobbin serving as a protective resistor; a persistent current switch for supplying a persistent current to the superconducting coil; a first closed circuit with the superconducting coil and the persistent current switch connected in series to the coil; and a second closed circuit with the superconducting coil and the bobbin connected in series to the coil.
摘要翻译： 一种超导磁体装置，包括：卷绕有超导线圈的线轴，所述线轴用作保护电阻; 用于向超导线圈提供持续电流的持续电流开关; 具有与线圈串联连接的超导线圈和持续电流开关的第一闭合电路; 以及第二闭合电路，其中超导线圈和线圈与线圈串联连接。
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公开(公告)号：US09852831B2
公开(公告)日：2017-12-26
申请号：US15032766
申请日：2013-11-15
申请人： Hitachi, Ltd.
发明人： Akihisa Miyazoe , Takeshi Nakayama , Ryuya Ando , Manabu Aoki
摘要： This superconducting magnet includes: a superconducting coil that is formed by winding a first superconducting wire rod; a second superconducting wire rod, which is disposed by being thermally in contact with and electrically insulated from the superconducting coil, and which has a superconducting transition temperature that is lower than that of the first superconducting wire rod; voltage terminals that are disposed at a plurality of areas of the second superconducting wire rod; a voltmeter connected to the voltage terminals; and a switch circuit connected to the voltmeter. The switch circuit interrupts a current when receiving an output from the voltmeter, the current being one that is to be supplied to the superconducting coil.
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5.发明授权Superconducting electromagnet device, cooling method therefor, and magnetic resonance imaging device 有权超导电磁铁装置及其冷却方法及磁共振成像装置公开(公告)号：US08988176B2
公开(公告)日：2015-03-24
申请号：US14360653
申请日：2012-11-28
申请人： Hitachi, Ltd.
发明人： Manabu Aoki , Ryuya Ando , Yukihiro Murata , Ryoji Nakagawa
IPC分类号： H01F6/00 , H01F6/04 , G01R33/3815
CPC分类号： H01F6/04 , G01R33/3804 , G01R33/3815 , H01F6/02 , Y10S505/844 , Y10S505/85 , Y10S505/879 , Y10S505/893
摘要： A superconducting magnet device is configured to include: a refrigerant circulation flowpath in which a refrigerant (R) circulates; a refrigerator for cooling vapor of the refrigerant (R) in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant (R); a protective resistor thermally contacting the superconducting coil and having an internal space (S); a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant having a higher boiling point than the refrigerant (R) and frozen by the refrigerant (R) to the internal space (S) in the protective resistor; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.
摘要翻译： 超导磁体装置构成为包括：制冷剂循环流路，其中制冷剂（R）循环; 用于冷却制冷剂循环流路中的制冷剂（R）的蒸气的冷冻机; 由循环制冷剂（R）冷却的超导线圈; 与所述超导线圈热接触并具有内部空间（S）的保护电阻器; 高沸点制冷剂供给部，用于供给比制冷剂（R）沸点高的高沸点制冷剂，并由制冷剂（R）冻结到保护电阻体内的内部空间（S）; 以及真空绝热容器，用于至少容纳制冷剂循环流路，超导线圈和保护电阻。
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公开(公告)号：US09995805B2
公开(公告)日：2018-06-12
申请号：US14379587
申请日：2013-02-20
申请人： Hitachi, Ltd.
发明人： Ryuya Ando
IPC分类号： G01V3/00 , G01R33/387 , G01R33/3873 , G01R33/381 , G01R33/56 , G01R33/565 , G01R33/38 , G01R33/3815
CPC分类号： G01R33/387 , G01R33/3806 , G01R33/381 , G01R33/3815 , G01R33/3873 , G01R33/5608 , G01R33/565
摘要： A computer executes: calculating a first volume distribution (v.d.) of magnetic materials on a shim tray, based on a first magnetic field strength distribution (m.f.s.d.) in a magnetic field space (S3); acquiring a first composite distribution (c.d.) representing a volume by addition of volumes of magnetic materials for each region of the shim tray, and positions of the regions (S5); calculating a virtual m.f.s.d. created by magnetic materials supposed to be arranged as in the first c.d. (S8); calculating a second m.f.s.d. by addition of the first m.f.s.d. and the virtual m.f.s.d. (S9); calculating a second v.d. of magnetic materials on the shim tray, based on the second m.f.s.d. (S3); acquiring a second c.d. representing a volume by addition of volumes of magnetic materials for each region, and positions of the regions (S5); and displaying the positions of regions and the volumes in the first c.d. and second c.d. (S10).
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