公开(公告)号：US20130267756A1

公开(公告)日：2013-10-10

申请号：US13857573

申请日：2013-04-05

Applicant: HITACHI, LTD.

Inventor： Satoshi TOTAKE ,  Masumi UMEZAWA ,  Tomohisa IMAGAWA

IPC: A61N5/10

CPC classification number: A61N5/1043 ,  A61N5/103 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1077 ,  A61N2005/1087

Abstract: A particle therapy system is capable of reducing an increase in treatment time caused by the initialization operation of magnets in the execution of the scanning irradiation method successively changing the energy level of a beam extracted from an accelerator. An irradiation control apparatus has a scheme that calculates setting vales of excitation current for bending magnets for a transport system on every irradiation condition (energy condition), and sets appropriate excitation current values according to the irradiation sequence. The irradiation control apparatus 35 prestores in a current supply control table 1 reference current values determined corresponding to energy levels of the ion beam, prestores in current supply compensation value tables 1, 2 compensation current values determined corresponding to energy levels of the ion beam and numbers of times of changing the energy level, and calculates the excitation current value of the magnets by using the values prestored in the tables.

公开(公告)号：US20220323790A1

公开(公告)日：2022-10-13

申请号：US17716338

申请日：2022-04-08

Applicant: Hitachi, Ltd.

Inventor： Haruki ARITA ,  Tomohisa IMAGAWA ,  Naofumi ISHIGURO

IPC: A61N5/10

Abstract: A particle therapy system includes: an accelerator that accelerates a particle beam; an irradiation system that applies the beam accelerated by the accelerator to a target; and a controller that controls the accelerator and the irradiation system. The controller has a treatment execution system that generates a control parameter which controls the accelerator and the irradiation system based on a treatment plan and has a treatment execution controller that controls the accelerator and the irradiation system based on the control parameter generated by the treatment execution system. When irradiation to the target by the irradiation system is suspended due to a failure or an artificial manipulation, the treatment execution system calculates an irradiated dose of the particle beam and an unirradiated dose of the particle beam, and the treatment execution system delivers at least the unirradiated dose to the treatment execution controller.

公开(公告)号：US20150076370A1

公开(公告)日：2015-03-19

申请号：US14552733

申请日：2014-11-25

Applicant: HITACHI, LTD.

Inventor： Satoshi TOTAKE ,  Masumi UMEZAWA ,  Tomohisa IMAGAWA

IPC: A61N5/10

CPC classification number: A61N5/1043 ,  A61N5/103 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1077 ,  A61N2005/1087

Abstract: A particle therapy system is capable of reducing an increase in treatment time caused by the initialization operation of magnets in the execution of the scanning irradiation method successively changing the energy level of a beam extracted from an accelerator. An irradiation control apparatus has a scheme that calculates setting vales of excitation current for bending magnets for a transport system on every irradiation condition (energy condition), and sets appropriate excitation current values according to the irradiation sequence. The irradiation control apparatus 35 prestores in a current supply control table 1 reference current values determined corresponding to energy levels of the ion beam, prestores in current supply compensation value tables 1, 2 compensation current values determined corresponding to energy levels of the ion beam and numbers of times of changing the energy level, and calculates the excitation current value of the magnets by using the values prestored in the tables.

Abstract translation: 粒子治疗系统能够在依次改变从加速器提取的光束的能量水平的扫描照射方法的执行中减少由磁体的初始化操作引起的治疗时间的增加。 照射控制装置具有在每个照射条件（能量条件）下计算用于输送系统的磁铁的激励电流的设定值的方案，并根据照射顺序设定适当的激励电流值。 照射控制装置35在电流供给控制表1中预先存储对应于离子束的能级确定的基准电流值，电流补偿值表1,2中预先存储的与离子束的能级对应的补偿电流值和数 的时间，并且通过使用预先存储在表中的值来计算磁体的励磁电流值。

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。