公开(公告)号：US20150031931A1

公开(公告)日：2015-01-29

申请号：US14333809

申请日：2014-07-17

Applicant: HITACHI, LTD.

Inventor： Hideaki NISHIUCHI ,  Koji TOBINAGA ,  Kunio MORIYAMA ,  Takuya NOMURA

IPC: A61N5/10

CPC classification number: A61N5/1067 ,  A61B6/4014 ,  A61B6/4266 ,  A61N5/1043 ,  A61N5/1068 ,  A61N2005/1074 ,  A61N2005/1087

Abstract: A control data about the devices constituting the synchrotron are formed by an initial acceleration control data item, a plural extraction control data items, a plural energy change control data items connecting the plural extraction control data items, and a plural deceleration control data items corresponding to the plural extraction control data items. An affected part position detection unit and an extraction permission determination unit are provided to determine whether the position of a marker shown in transparent image information is included within a beam irradiation permission range. If the marker position is found included, the extraction permission determination unit outputs to an interlock system an extraction permission determination signal permitting beam extraction.

Abstract translation: 关于构成同步加速器的装置的控制数据由初始加速控制数据项，多个提取控制数据项，连接多个提取控制数据的多个能量变化控制数据项和对应于多个提取控制数据的多个减速控制数据项形成 多个提取控制数据项。 提供受影响部位位置检测单元和提取许可确定单元，以确定透明图像信息中所示的标记的位置是否包括在光束照射许可范围内。 如果包括标记位置，则提取许可确定单元向互锁系统输出允许光束提取的提取允许判定信号。

公开(公告)号：US20140187844A1

公开(公告)日：2014-07-03

申请号：US14132965

申请日：2013-12-18

Applicant: Hitachi, Ltd.

Inventor： Kazuyoshi SAITO ,  Takuya NOMURA ,  Hideaki NISHIUCHI

IPC: A61N5/10

CPC classification number: A61N5/1077 ,  A61N2005/1087 ,  H05H7/10 ,  H05H13/04 ,  H05H2007/004

Abstract: A particle beam therapy system is disclosed which includes: a synchrotron accelerating a charged particle beam injected from a pre-accelerator up to a predetermined energy level before applying a high-frequency voltage to an extraction device to extract the charged particle beam caused to exceed a stability limit; a beam transportation system transporting the charged particle beam extracted from the synchrotron up to a treatment room, and an irradiation device irradiating a patient in the treatment room with the charged particle beam in conformity to the patient's tumor shape. The synchrotron has functionality to accelerate or decelerate the charged particle beam successively to extract the charged particle beam at a plurality of energy levels during an extraction phase of the synchrotron, the beam transportation system further having functionality to block off an unnecessary charged particle beam extracted from the synchrotron during acceleration or deceleration.

Abstract translation: 公开了一种粒子束治疗系统，其包括：加速从预加速器注入到预定能量水平的带电粒子束的同步加速器，然后向提取装置施加高频电压以提取超过 稳定极限 将从所述同步加速器提取的带电粒子束传送到治疗室的射束输送系统，以及照射装置，其与所述患者的肿瘤形状一致地照射带有所述带电粒子束的治疗室中的患者。 同步加速器具有在同步加速器的提取阶段期间连续地加速或减速带电粒子束以提取带电粒子束的功能，光束传输系统还具有阻止不必要的带电粒子束的功能， 加速或减速时的同步加速器。

公开(公告)号：US20230180378A1

公开(公告)日：2023-06-08

申请号：US17953369

申请日：2022-09-27

Applicant: Hitachi, Ltd.

Inventor： Futaro EBINA ,  Takuya NOMURA

IPC: H05H7/04 ,  H05H7/00 ,  H05H7/10 ,  A61N5/10

CPC classification number: H05H7/04 ,  H05H7/001 ,  H05H7/10 ,  A61N5/10 ,  A61N2005/1085 ,  H05H2007/008 ,  H05H2007/045 ,  H05H2277/11 ,  H05H13/005

Abstract: There is provided a circular accelerator that accelerates a beam of charged particles circulating in a magnetic field such that a closed orbit for each energy of the beam is eccentric. The circular accelerator includes a beam extraction port for extracting beams of different energies from the closed orbit, a first bending magnet and a second bending magnet that bend the beam extracted from the beam extraction port, and a control unit that controls magnetic field strengths of the first bending magnet and the second bending magnet in accordance with the energy of the extracted beam. When the energy of the extracted beam is a designed maximum energy of the circular accelerator, the control unit excites both the first bending magnet and the second bending magnet to bend the beam.

公开(公告)号：US20180200534A1

公开(公告)日：2018-07-19

申请号：US15821889

申请日：2017-11-24

Applicant: Hitachi, Ltd.

Inventor： Takahiro YAMADA ,  Taisuke TAKAYANAGI ,  Rintarou FUJIMOTO ,  Shinichiro FUJITAKA ,  Takuya NOMURA

IPC: A61N5/10

CPC classification number: A61N5/103 ,  A61N5/1043 ,  A61N5/1067 ,  A61N5/1071 ,  A61N5/1077 ,  A61N2005/1074 ,  A61N2005/1087

Abstract: There is provided a treatment planning system and a particle therapy system. In the related art, it is unable to determine optimum beam intensity in irradiation for which discrete spot irradiation and continuous beam irradiation coexist. There is provided a treatment planning system that includes a spot determination unit that divides an irradiation region to be irradiated with a charged particle beam into a plurality of layers in an advancing direction of the charged particle beam and disposes a plurality of irradiation spots, which becomes irradiation points of the charged particle beam, in the layers and a beam intensity determination unit that determines beam intensity for each of the layers by evaluating the irradiation time by changing the beam intensity in a range of a condition of change in dose distribution which is set in advance.

公开(公告)号：US20150060703A1

公开(公告)日：2015-03-05

申请号：US14448028

申请日：2014-07-31

Applicant: HITACHI, LTD.

Inventor： Kosuke OGASAWARA ,  Takuya NOMURA ,  Hideaki NISHIUCHI

IPC: A61N5/10 ,  B01J19/08

CPC classification number: A61N5/1077 ,  A61N5/1048 ,  A61N2005/1087 ,  A61N2005/1092 ,  B01J19/081 ,  B01J2219/0801

Abstract: The operation control data about the component device constituting the synchrotron 13 are structured to include an initial acceleration control data item, a plural extraction control data items, a plural energy change control data items that connect the plural extraction control data items. The plural extraction control data items include extraction condition setting data items and extraction condition cancellation data items corresponding to the plural extraction control data items. As a result, a particle beam irradiation system capable of controlling changes in beam energy, updating operation cycle, and extracting beam in a short time can be provided.

Abstract translation: 关于构成同步加速器13的部件装置的动作控制数据被构造为包括初始加速控制数据项，多个提取控制数据项，连接多个提取控制数据项的多个能量变换控制数据项。 多个提取控制数据项包括与多个提取控制数据项对应的提取条件设置数据项和提取条件取消数据项。 结果，可以提供能够控制光束能量的变化，更新操作周期以及在短时间内提取光束的粒子束照射系统。

公开(公告)号：US20140021375A1

公开(公告)日：2014-01-23

申请号：US13945041

申请日：2013-07-18

Applicant: Hitachi, Ltd.

Inventor： Hideaki NISHIUCHI ,  Masumi UMEZAWA ,  Takuya NOMURA ,  Satoshi TOTAKE ,  Koji TOBINAGA ,  Tomohisa IMAGAWA ,  Seiji YOSHIURA ,  Moemi TAKEDA

IPC: A61N5/10

CPC classification number: A61N5/1048 ,  A61N5/1077 ,  A61N2005/1087

Abstract: A particle beam irradiation system having a multi-energy extraction control operation that controls the extraction beam energy in a synchrotron within a short time, such that when the ion beam irradiation is halted, an operating cycle is updated within a short time and a dose rate is improved. To this end, operating control data for each of the devices constituting the synchrotron is constructed by multi-energy extraction control pattern data for controlling extraction of beams of a plurality of energy levels at one operating cycle, and a plurality of sets of deceleration control data that correspond to the extraction control of the beam of the plurality of energy levels. The devices are controlled by using the operating control data.

Abstract translation: 一种具有多能量提取控制操作的粒子束照射系统，其在短时间内控制同步加速器中的提取光束能量，使得当离子束照射停止时，在短时间内和剂量率下更新操作周期 改进了 为此，构成同步加速器的每个装置的操作控制数据由用于控制在一个操作循环中提取多个能级的波束的多能量提取控制模式数据和多组减速控制数据构成 其对应于多个能级的光束的提取控制。 通过使用操作控制数据控制设备。

公开(公告)号：US20240324092A1

公开(公告)日：2024-09-26

申请号：US18367578

申请日：2023-09-13

Applicant: Hitachi, Ltd.

Inventor： Mina EGUCHI ,  Takuya NOMURA

IPC: H05H7/06 ,  A61N5/10 ,  H05H7/04

CPC classification number: H05H7/06 ,  A61N5/1079 ,  H05H7/04 ,  A61N2005/1087 ,  H05H2007/045 ,  H05H2277/11

Abstract: A particle beam irradiation system according to an aspect of the present invention includes two or more charged particle beam generation apparatuses capable of operating independently of each other, a beam transport line that transports charged particle beams generated by the charged particle beam generation apparatuses, and two or more beam irradiation apparatuses to which the charged particle beams are transported through the beam transport line. Any one of the beam irradiation apparatuses is configured such that the charged particle beams from a plurality of the charged particle beam generation apparatuses can be transported thereto, and the charged particle beams are simultaneously transported from the plurality of charged particle beam generation apparatuses to corresponding ones of the different beam irradiation apparatuses.

公开(公告)号：US20240091560A1

公开(公告)日：2024-03-21

申请号：US17945180

申请日：2022-09-15

Applicant: Hitachi, Ltd.

Inventor： Takuto MIYOSHI ,  Takuya NOMURA ,  Yuki ITO ,  Takashi TOYODA ,  Takahiro YAMADA

IPC: A61N5/10

CPC classification number: A61N5/1071

Abstract: A dose monitor measures a dose of a beam. The position monitor measures the beam size of the beam. The irradiation control apparatus calculates the measurement characteristic of the dose monitor based on the dose and the beam size of the beam, and controls the irradiation of the patient with the beam based on the measurement characteristic and the dose.

公开(公告)号：US20220181042A1

公开(公告)日：2022-06-09

申请号：US17603381

申请日：2020-06-30

Applicant: Hitachi, Ltd.

Inventor： Takahiro YAMADA ,  Takuya NOMURA ,  Seiji SOEDA

IPC: G21K1/093 ,  H05H7/04 ,  H01F7/20 ,  H01F27/28 ,  A61N5/10

Abstract: A scanning magnet that deflects a charged particle beam has a winding U provided with grooves SL1 and SL4 provided at facing positions. A passing direction of a conductive wire forming the winding U passes through the groove SL1 in a γ-axis positive direction, and passes through the groove SL4 in a γ-axis negative direction. The winding U has a loop path SL1-SL4 in which the groove SL1 is directed to the γ-axis positive direction, and the groove SL4 is directed to the γ-axis negative direction. When a current flows in the γ-axis positive direction in a winding section U+ disposed in the groove SL1, a current flows in the γ-axis negative direction in a winding section U− disposed in the groove SL4. A yoke, the winding U, a winding V, and a winding W have a 120° rotationally symmetric structure with respect to a central axis of the yoke.

公开(公告)号：US20160345422A1

公开(公告)日：2016-11-24

申请号：US15106876

申请日：2015-02-12

Applicant: HITACHI, LTD.

Inventor： Hideaki NISHIUCHI ,  Futaro EBINA ,  Satoshi TOTAKE ,  Takuya NOMURA ,  Kunio MORIYAMA

IPC: H05H7/10 ,  H05H7/02 ,  A61N5/10 ,  H05H13/04

CPC classification number: H05H7/10 ,  A61N5/1048 ,  A61N5/1077 ,  A61N2005/1087 ,  H05H7/02 ,  H05H13/04

Abstract: When controlling the ejection of a charged particle beam from a synchrotron, a radiofrequency voltage is applied, which serves as the radio-frequency voltage to be applied to an ejection radio-frequency electrode equipping the synchrotron, and which is constituted by a first radio-frequency voltage for increasing an oscillation amplitude in such a way as to exceed a stable limit in order to eject to the exterior of the synchrotron a beam that circles inside the synchrotron, and a second radio-frequency voltage for preferentially ejecting a charged particle beam that circles in the vicinity of the stable limit, with the amplitude value of the second radio-frequency voltage being controlled in such a way that the amplitude value is 0 prior to the beam ejection start, the amplitude value increases gradually from the beam ejection start, and, once a predetermined amplitude value has been reached, this value is maintained.

Abstract translation: 当控制来自同步加速器的带电粒子束的喷射时，施加射频电压，其作为要施加到装备同步加速器的喷射射频电极的射频电压，并由第一射频电压构成， 频率电压，以便以超过稳定极限的方式增加振荡幅度，以便向同步加速器的外部喷射圆周在同步加速器内的光束;以及第二射频电压，用于优先喷射带电粒子束， 在稳定极限附近的圆圈，其中第二射频电压的振幅值被控制为在光束喷射开始之前振幅值为0，振幅值从射束开始逐渐增加， 并且一旦达到预定的振幅值，就保持该值。