公开(公告)号：US09402298B2

公开(公告)日：2016-07-26

申请号：US14653012

申请日：2013-02-28

申请人： Kengo Sugahara ,  Kazushi Hanakawa ,  Yasuto Kishii ,  Kazuo Yamamoto

发明人： Kengo Sugahara ,  Kazushi Hanakawa ,  Yasuto Kishii ,  Kazuo Yamamoto

IPC分类号： H05H7/08 ,  H05H7/02 ,  H05H7/22 ,  H05H9/04 ,  H05H13/04 ,  A61N5/10 ,  H01J9/42 ,  H01J9/44

CPC分类号： H05H7/08 ,  A61N5/10 ,  H01J9/42 ,  H01J9/44 ,  H05H7/02 ,  H05H7/22 ,  H05H9/041 ,  H05H9/045 ,  H05H9/047 ,  H05H13/04 ,  H05H2007/025 ,  H05H2007/082 ,  H05H2007/227

摘要： A method of manufacturing a radio frequency accelerator that accelerates charged particles injected into a second-stage linear accelerator from a first-stage linear accelerator includes a step of setting a value of a power distribution factor R for the power distributor to supply radio frequency power to the second-stage linear accelerator and a value of a ratio L/ω of a length L of the matching section between the outlet of the first-stage linear accelerator and the inlet of the second-stage linear accelerator to the angular frequency ω of the radio frequency power, so that a charged particle beam is extracted from the second-stage linear accelerator over a range of the total radio frequency power wider than a widest allowable range among allowable total radio frequency power ranges determined for each phase of charged particles on the basis of phase acceptance of the second-stage accelerator.

摘要翻译： 一种制造从第一级线性加速器加速到后级线性加速器中的带电粒子加速的射频加速器的方法包括：将功率分配器的功率分配因子R的值设定为将射频功率提供给 第二级线性加速器和第一级线性加速器的出口与第二级线性加速器的入口之间的匹配部分的长度L与第二级线性加速器的入口之间的比率L /ω的值相对于 射频功率，使得在总频率功率的范围内，从第二级线性加速器中提取带电粒子束的宽度大于对 第二阶段加速器相位接受的基础。

公开(公告)号：US20130289333A1

公开(公告)日：2013-10-31

申请号：US13977093

申请日：2011-03-07

申请人： Kengo Sugahara ,  Masahiro Ikeda ,  Kazushi Hanakawa ,  Taizo Honda ,  Hisashi Harada

发明人： Kengo Sugahara ,  Masahiro Ikeda ,  Kazushi Hanakawa ,  Taizo Honda ,  Hisashi Harada

IPC分类号： A61N5/10

CPC分类号： A61N5/1077 ,  A61N5/1043 ,  A61N2005/1074 ,  A61N2005/1087

摘要： The present invention is intended to enable proper elimination of the remanent magnetization of the scanning magnet, which is used in a particle beam therapy system, in a short time. In the particle beam therapy system that irradiates an irradiation target with a particle beam 18 accelerated by an accelerator and scanned by scanning magnets 11 and 12, power supplies 13 and 14 to operate the scanning magnets 11 and 12 output pattern currents for demagnetizing the scanning magnets 11 and 12. The pattern current is controlled by a control circuit 15 that reads a demagnetization pattern 17 and controls the power supplies 13 and 14.

摘要翻译： 本发明旨在能够在短时间内适当消除用于粒子束治疗系统的扫描磁体的剩余磁化。 在用由加速器加速并通过扫描磁体11和12扫描的粒子束18照射照射目标的粒子束治疗系统中，用于操作扫描磁体11和12的电源13和14输出用于使扫描磁体去磁的图案电流 图案电流由读取去磁图案17并控制电源13和14的控制电路15控制。

公开(公告)号：US09079025B2

公开(公告)日：2015-07-14

申请号：US14380784

申请日：2012-04-19

申请人： Kengo Sugahara ,  Kazushi Hanakawa ,  Taizo Honda

发明人： Kengo Sugahara ,  Kazushi Hanakawa ,  Taizo Honda

IPC分类号： A61N5/10 ,  G21K5/04 ,  G21K1/10

CPC分类号： A61N5/1042 ,  A61N5/1048 ,  A61N5/1077 ,  A61N5/1081 ,  A61N2005/1087 ,  A61N2005/1095 ,  G21K1/10 ,  G21K5/04

摘要： In gantry type particle beam irradiation system comprising a gantry and being configured to irradiate a particle beam, which has small emittance in X direction and large emittance in Y direction at an extraction position of a circular accelerator, from an irradiation nozzle installed in the gantry to an irradiation target, the irradiation nozzle has a ridge filter which is installed so as for a direction in which emittance in X direction is maintained to tilt to a direction which is perpendicular to a ridge of the ridge filter by a predetermined angle in the state where the gantry is a reference angle.

摘要翻译： 在具有台架的台架式粒子束照射系统中，构造成从圆筒形加热器的拔出位置向X方向发射小Y方向的发射极大的粒子束，从台架的照射喷嘴照射到 照射目标，照射喷嘴具有脊形过滤器，该棱形过滤器被安装成使得在X方向上的发射率保持为倾斜到与脊形过滤器的脊的方向倾斜预定角度的方向， 龙门架是一个参考角度。

公开(公告)号：US20150031934A1

公开(公告)日：2015-01-29

申请号：US14380784

申请日：2012-04-19

申请人： Kengo Sugahara ,  Kazushi Hanakawa ,  Taizo Honda

发明人： Kengo Sugahara ,  Kazushi Hanakawa ,  Taizo Honda

IPC分类号： A61N5/10

CPC分类号： A61N5/1042 ,  A61N5/1048 ,  A61N5/1077 ,  A61N5/1081 ,  A61N2005/1087 ,  A61N2005/1095 ,  G21K1/10 ,  G21K5/04

摘要： In gantry type particle beam irradiation system comprising a gantry and being configured to irradiate a particle beam, which has small emittance in X direction and large emittance in Y direction at an extraction position of a circular accelerator, from an irradiation nozzle installed in the gantry to an irradiation target, the irradiation nozzle has a ridge filter which is installed so as for a direction in which emittance in X direction is maintained to tilt to a direction which is perpendicular to a ridge of the ridge filter by a predetermined angle in the state where the gantry is a reference angle.

摘要翻译： 在具有台架的台架式粒子束照射系统中，构造成从圆筒形加热器的拔出位置向X方向发射小Y方向的发射极大的粒子束，从台架的照射喷嘴照射到 照射目标，照射喷嘴具有脊形过滤器，该棱形过滤器被安装成使得在X方向上的发射率保持为倾斜到与脊形过滤器的脊的方向倾斜预定角度的方向， 龙门架是一个参考角度。

公开(公告)号：US08854048B2

公开(公告)日：2014-10-07

申请号：US13262866

申请日：2011-03-10

申请人： Toshihiro Otani ,  Hisashi Harada ,  Masahiro Ikeda ,  Kazushi Hanakawa ,  Taizo Honda

发明人： Toshihiro Otani ,  Hisashi Harada ,  Masahiro Ikeda ,  Kazushi Hanakawa ,  Taizo Honda

IPC分类号： G01N27/62 ,  A61N5/10

CPC分类号： H01J37/304 ,  A61N5/1048 ,  A61N5/1071 ,  A61N5/1077 ,  A61N2005/1087 ,  H01J47/02

摘要： In a particle beam therapy system which scans a particle beam and irradiates the particle beam to an irradiation position of an irradiation subject and has a dose monitoring device for measuring a dose of the particle beam and an ionization chamber smaller than the dose monitoring device, the ionization chamber measuring a dose of a particle beam passing through the dose monitoring device, the dose of the particle beam irradiated by the dose monitoring device is measured; the dose of the particle beam passing through the dose monitoring device is measured by the small ionization chamber; and a correction coefficient of the dose measured by the dose monitoring device corresponding to the irradiation position is found based on the dose of the particle beam measured by the small ionization chamber.

摘要翻译： 在粒子束治疗系统中，扫描粒子束并将粒子束照射到照射对象的照射位置，并且具有用于测量粒子束的剂量和小于剂量监测装置的电离室的剂量监测装置， 电离室测量通过剂量监测装置的粒子束的剂量，测量由剂量监测装置照射的粒子束的剂量; 通过小电离室测量通过剂量监测装置的粒子束的剂量; 并且基于由小电离室测量的粒子束的剂量，求出由与照射位置对应的剂量监测装置测量的剂量的校正​​系数。

公开(公告)号：US4868502A

公开(公告)日：1989-09-19

申请号：US152622

申请日：1988-02-05

申请人： Kazushi Hanakawa ,  Kiyoshi Yoda

发明人： Kazushi Hanakawa ,  Kiyoshi Yoda

IPC分类号： G01R33/54

CPC分类号： G01R33/482

摘要： A magnetic resonance imaging method and apparatus for obtaining images of slices of a body placed in a static magnetic field. During the sampling of one NMR signal, an additional second gradient magnetic field is impressed on the body to acquire data. These data are additionally sampled during each sampling. This enables the number of data to be increased and the number of repetitions to be reduced, thereby accomplishing a Fourier transformation at a higher speed.

摘要翻译： 一种磁共振成像方法和装置，用于获得放置在静态磁场中的身体的切片的图像。 在一个NMR信号的采样期间，在身体上施加另外的第二梯度磁场以获取数据。 这些数据在每个采样期间被附加采样。 这使得能够增加数据的数量和减少的重复次数，从而以更高的速度完成傅里叶变换。

公开(公告)号：US20140228615A1

公开(公告)日：2014-08-14

申请号：US14240650

申请日：2011-11-03

申请人： Masahiro Ikeda ,  Hisashi Harada ,  Kazushi Hanakawa ,  Toshihiro Otani ,  Tadashi Katayose ,  Taizo Honda ,  Yukiko Yamada ,  Yuehu Pu

发明人： Masahiro Ikeda ,  Hisashi Harada ,  Kazushi Hanakawa ,  Toshihiro Otani ,  Tadashi Katayose ,  Taizo Honda ,  Yukiko Yamada ,  Yuehu Pu

IPC分类号： A61N5/10

CPC分类号： A61N5/1081 ,  A61N5/1077 ,  A61N2005/1087 ,  A61N2005/1095

摘要： A particle beam irradiation apparatus according to the present invention is provided with a vacuum duct that forms a vacuum region through which the charged particle beam passes, a vacuum window through which the charged particle beam is launched from the vacuum region, a scanning electromagnet that scans the charged particle beam; a monitoring apparatus including a position monitor that detects the passing position of a charged particle beam and the beam size thereof, a low-scattering gas filling chamber including the monitoring apparatus, and an irradiation management apparatus that controls irradiation of the charged particle beam; the particle beam irradiation apparatus is characterized in that the low-scattering gas filling chamber is changeably disposed in such a manner that the beam-axis-direction positional relationship between the monitoring apparatus and the vacuum window is a desired one and in that the low-scattering gas filling chamber is filled with a low-scattering gas.

摘要翻译： 根据本发明的粒子束照射装置设置有真空管道，该真空管道形成带电粒子束通过的真空区域，从真空区域发射带电粒子束的真空窗口，扫描的扫描电磁体 带电粒子束; 监视装置，其包括检测带电粒子束的通过位置的位置监视器及其光束尺寸，包括监视装置的低散射气体填充室以及控制带电粒子束的照射的照射管理装置; 所述粒子束照射装置的特征在于，所述低散射气体充填室可变地设置成使得所述监视装置和所述真空窗口之间的射束轴向位置关系是期望的， 散射气体填充室填充有低散射气体。

公开(公告)号：US20140187847A1

公开(公告)日：2014-07-03

申请号：US14240197

申请日：2011-11-02

申请人： Masahiro Ikeda ,  Hisashi Harada ,  Kazushi Hanakawa ,  Toshihiro Otani ,  Tadashi Katayose ,  Taizo Honda ,  Yukiko Yamada ,  Yuehu Pu

发明人： Masahiro Ikeda ,  Hisashi Harada ,  Kazushi Hanakawa ,  Toshihiro Otani ,  Tadashi Katayose ,  Taizo Honda ,  Yukiko Yamada ,  Yuehu Pu

IPC分类号： A61N5/10

CPC分类号： A61N5/1077 ,  A61N5/1049 ,  A61N5/1069 ,  A61N2005/1087

摘要： A particle beam therapy system comprising a treatment table, a treatment table control unit and an irradiation control unit configured to output an instruction for controlling the treatment table control unit, an accelerator and a scanning electromagnet, wherein after the treatment table control unit controls the treatment table so as for a patient isocenter which is reference position of an affected area of a patient to move to a position of an irradiation isocenter which is set at a position which is closer to an irradiation nozzle than an equipment isocenter which is reference of positional relation of the irradiation nozzle and the treatment table, the irradiation control unit outputs an instruction for irradiating the patient with a particle beam.

摘要翻译： 一种粒子束治疗系统，包括治疗台，治疗台控制单元和照射控制单元，其被配置为输出用于控制治疗台控制单元的指令，加速器和扫描电磁体，其中在治疗台控制单元控制治疗 将患者的中心位置作为患者的受影响区域的基准位置移动到被设定在比作为位置关系的参照的设备等角点更靠近照射喷嘴的位置的照射等角点的位置 的照射喷嘴和处理台，照射控制单元输出用于对粒子束照射患者的指示。

公开(公告)号：US20070182498A1

公开(公告)日：2007-08-09

申请号：US11541679

申请日：2006-10-03

申请人： Nobuyuki Zumoto ,  Takahisa Nagayama ,  Kazushi Hanakawa

发明人： Nobuyuki Zumoto ,  Takahisa Nagayama ,  Kazushi Hanakawa

IPC分类号： H03B9/04

CPC分类号： H05G2/00

摘要： An electromagnetic wave generating device includes: a hollow annular vacuum chamber; an electron gun; an electromagnet configured with a pair of discoid combinations in which a cylindrical accelerating magnet pole and an annular focusing magnet pole are arranged in this order from the inner side to the outer side of the combinations, and are disposed symmetrically and concentrically with each other on both sides of the chamber and coaxially with the center axis of the chamber, and a return yoke disposed outside both accelerating and focusing magnet poles and the chamber; accelerating coils wound around the accelerating magnet poles, for exciting the poles; and focusing coils wound around the focusing magnet poles, for exciting the poles; wherein a through hole is formed at the center of the accelerating magnet pole so that power supply wires connecting the accelerating coils to an accelerating power supply are led out through the hole.

摘要翻译： 电磁波发生装置包括：中空环形真空室; 电子枪 配置有一对圆盘组合的电磁体，其中圆柱形加速磁极和环形聚焦磁极从组合的内侧到外侧依次布置，并且在两者上彼此对称和同心地设置 并与腔室的中心轴线同轴，并且设置在加速和聚焦磁极两端和腔室外的返回轭; 加速线圈缠绕在加速磁极上，用于激励磁极; 并且聚焦线圈缠绕在聚焦磁极上，用于激励磁极; 其特征在于，在所述加速磁极的中心形成有贯通孔，从而将加速线圈与加速电源连接的电力线从所述孔引出。

公开(公告)号：US08421031B2

公开(公告)日：2013-04-16

申请号：US13258772

申请日：2011-03-10

申请人： Taizo Honda ,  Masahiro Ikeda ,  Yuehu Pu ,  Kazushi Hanakawa

发明人： Taizo Honda ,  Masahiro Ikeda ,  Yuehu Pu ,  Kazushi Hanakawa

IPC分类号： H01J3/26 ,  A61N5/10

CPC分类号： A61N5/1043 ,  A61N5/1048 ,  A61N5/1077 ,  A61N2005/1074 ,  A61N2005/1087

摘要： The objective is to obtain a particle beam therapy system that can suppress the effect of a leakage dose. There are provided a scanning nozzle that irradiates in a predetermined direction a particle beam emitted from an accelerator; an irradiation control unit that controls operation of the irradiation nozzle in such a way that the particle beam of a predetermined dose is sequentially irradiated onto each of a plurality of spots set in a planar direction in an irradiation subject; and a control unit that on/off-controls emission of the particle beam from the accelerator. The irradiation control unit makes the irradiation nozzle scan in a diluting manner the particle beam onto a predetermined area in the irradiation subject, in a predetermined period after a time point when emission is switched from ON to OFF, or in a period from the time point when emission is switched from ON to OFF to a time point when the particle beam is cut off.

摘要翻译： 目的是获得能够抑制泄漏剂量影响的粒子束治疗系统。 提供了沿预定方向照射从加速器发射的粒子束的扫描喷嘴; 照射控制单元，其以照射对象的平面方向上设置的多个点顺序地照射预定剂量的粒子束的方式控制照射喷嘴的动作; 以及控制单元，其控制来自加速器的粒子束的发射。 照射控制单元使得照射喷嘴在发射从ON切换到OFF之后的预定时间内或在从时间点开始的时间段内，将粒子束以稀释的方式扫描到照射对象的预定区域上 当发射从ON切换到截止到粒子束的时间点时。