CHARGED PARTICLE BEAM IRRADIATION APPARATUS
    171.
    发明申请
    CHARGED PARTICLE BEAM IRRADIATION APPARATUS 有权
    充电颗粒光束辐射装置

    公开(公告)号:US20140014851A1

    公开(公告)日:2014-01-16

    申请号:US13939914

    申请日:2013-07-11

    Inventor: Toru Asaba

    Abstract: A charged particle beam irradiation apparatus includes: a scanning electromagnet that scans a charged particle beam; and a degrader that is provided on a downstream side of the scanning electromagnet in a scanning direction of the charged particle beam and adjusts a range of the charged particle beam by reducing energy of the charged particle beam. The degrader is configured to be closer to an upstream side in the scanning direction of the charged particle beam, outward in the scanning direction.

    Abstract translation: 带电粒子束照射装置包括:扫描带电粒子束的扫描电磁体; 以及降解器,其被设置在扫描电磁体的沿着带电粒子束的扫描方向的下游侧,并且通过降低带电粒子束的能量来调节带电粒子束的范围。 降解器被配置为在扫描方向上向外靠近带电​​粒子束的扫描方向的上游侧。

    Particle beam therapy system
    172.
    发明授权
    Particle beam therapy system 有权
    粒子束治疗系统

    公开(公告)号:US08193520B2

    公开(公告)日:2012-06-05

    申请号:US12724844

    申请日:2010-03-16

    Applicant: Yuehu Pu

    Inventor: Yuehu Pu

    Abstract: There is provided a particle beam therapy system that can rapidly change beam energy without increasing the size of a deflection electromagnet even in the case where the number of required beam-energy changes is large.There is provided a plurality of beam energy changing units each provided with a beam energy attenuation unit; a beam is deflected in such a way as to sequentially passes through the plurality of beam energy changing units; while a beam passes through one of the beam energy changing unit, the beam energy attenuation amount of another beam energy changing unit is changed.

    Abstract translation: 提供了一种粒子束治疗系统,即使在所需的束能量变化的数量大的情况下,也可以快速地改变束能量而不增加偏转电磁体的尺寸。 提供了多个光束能量改变单元,每个光束能量改变单元均设有光束能量衰减单元; 光束以这样的方式被偏转,以便顺序地穿过多个光束能量改变单元; 当光束通过光束能量改变单元中的一个时,另一光束能量改变单元的光束能量衰减量改变。

    Ion beam control apparatus and method
    173.
    发明授权
    Ion beam control apparatus and method 失效
    离子束控制装置及方法

    公开(公告)号:US08106366B2

    公开(公告)日:2012-01-31

    申请号:US12600540

    申请日:2008-05-20

    CPC classification number: G21K1/087 A61N2005/1087 A61N2005/1088 H05H7/12

    Abstract: Provided are an ion beam control apparatus and a control method for controlling an ion beam energy expansion level and an ion beam size in a radial direction. An ion beam control apparatus Sa is provided with an ion beam generating unit 2, and an ion beam control unit 1a in which a generated ion beam (IB) is input and controlled to be output with the prescribed level of energy expansion and the prescribed diameter in the radial direction. In the ion beam control unit 1a, phase rotation by a radio frequency electric field that increases existing probability with the prescribed level of energy is at least used.

    Abstract translation: 提供了一种用于控制离子束能量膨胀水平和离子束尺寸在径向方向上的离子束控制装置和控制方法。 离子束控制装置Sa设置有离子束产生单元2和离子束控制单元1a,其中生成的离子束(IB)被输入并被控制为以规定的能量膨胀水平和规定的直径输出 在径向方向。 在离子束控制单元1a中,至少使用通过以规定的能量水平增加现有概率的射频电场的相位旋转。

    Electron beam generating apparatus, image display apparatus, and method
of driving the apparatus
    176.
    发明授权
    Electron beam generating apparatus, image display apparatus, and method of driving the apparatus 失效
    电子束发生装置,图像显示装置以及驱动装置的方法

    公开(公告)号:US5659328A

    公开(公告)日:1997-08-19

    申请号:US358728

    申请日:1994-12-19

    Abstract: An electron beam generating apparatus for an electron beam source having surface conduction electron emitting devices formed on a substrate; includes a measuring unit for measuring a device current flowing through each of the surface conduction electron emitting devices, an a device current storage unit for storing data measured by the measuring unit. In addition comparing unit compares latest data measured by the measuring unit with the data stored in the device current storage unit, a correction value storage unit stores a correction value for correcting a driving signal to be applied to each surface conduction electron emitting device, and an adjusting unit adjusts the correction value stored in the correction value storage unit.

    Abstract translation: 一种用于电子束源的电子束产生装置,其具有形成在基板上的表面传导电子发射器件; 包括用于测量流过每个表面传导电子发射器件的器件电流的测量单元,用于存储由测量单元测量的数据的器件电流存储单元。 此外,比较单元将由测量单元测量的最新数据与存储在设备当前存储单元中的数据进行比较,校正值存储单元存储用于校正要施加到每个表面传导电子发射器件的驱动信号的校正值, 调整单元调整存储在校正值存储单元中的校正值。

    An electron source of the field emission type
    177.
    发明授权
    An electron source of the field emission type 失效
    现场排放型电子源

    公开(公告)号:US5070282A

    公开(公告)日:1991-12-03

    申请号:US451790

    申请日:1989-12-18

    Inventor: Bernard Epsztein

    CPC classification number: H01J1/3042 H01J3/022 H01J2201/319

    Abstract: An electron source is formed by at least one elementary electron emitter in which an emissive point having a very small radius of curvature operates on the field emission principle and produces an electron beam, the intensity of which is independent of any possible variations of electron emission. The emissive point cooperates with an extracting electrode, and a control electrode having a negative potential with respect to the extracting electrode is placed downstream of the extracting electrode with respect to the direction of propagation of the beam.

    Abstract translation: 电子源由至少一个基本电子发射体形成,其中具有非常小的曲率半径的发射点对场发射原理进行操作,并产生电子束,其强度与电子发射的任何可能的变化无关。 发射点与提取电极配合,并且相对于提取电极具有负电位的控制电极相对于光束的传播方向设置在提取电极的下游。

    Emission current control system for multiple hollow cathode devices
    178.
    发明授权
    Emission current control system for multiple hollow cathode devices 失效
    多个空心阴极器件的发射电流控制系统

    公开(公告)号:US4733530A

    公开(公告)日:1988-03-29

    申请号:US892559

    申请日:1986-08-04

    CPC classification number: H01J27/022 F03H1/0012 F03H1/0037

    Abstract: An emission current control system for balancing the individual emission currents from an array of hollow cathodes has current sensors for determining the current drawn by each cathode from a power supply. Each current sensor has an output signal which has a magnitude proportional to the current. The current sensor output signals are averaged, the average value so obtained being applied to a respective controller for controlling the flow of an ion source material through each cathode. Also applied to each controller are the respective sensor output signals for each cathode and a common reference signal. The flow of source material through each hollow cathode is thereby made proportional to the current drawn by that cathode, the average current drawn by all of the cathodes, and the reference signal. Thus, the emission current of each cathode is controlled such that each is made substantially equal to the emission current of each of the other cathodes. When utilized as a component of a multiple hollow cathode ion propulsion motor, the emission current control system of the invention provides for balancing the thrust of the motor about the thrust axis and also for preventing premature failure of a hollow cathode source due to operation above a maximum rated emission current.

    Abstract translation: 用于平衡来自空心阴极阵列的各个发射电流的发射电流控制系统具有用于确定由每个阴极从电源吸取的电流的电流传感器。 每个电流传感器具有与电流成正比的输出信号。 当前的传感器输出信号被平均,所得到的平均值被施加到相应的控制器,用于控制通过每个阴极的离子源材料的流动。 也适用于每个控制器是用于每个阴极的相应传感器输出信号和公共参考信号。 因此,源材料通过每个中空阴极的流动与由该阴极吸取的电流,由所有阴极吸引的平均电流和参考信号成比例。 因此,控制每个阴极的发射电流,使得每个阴极的发射电流基本上等于每个其它阴极的发射电流。 当用作多空心阴极离子推进电动机的组件时,本发明的发射电流控制系统提供了平衡电动机围绕推力轴线的推力,并且还用于防止由于上述操作以上的中空阴极源的过早失效 最大额定发射电流。

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