METHODS AND SYSTEMS TO PERFORM PROTON COMPUTED TOMOGRAPHY
    21.
    发明申请
    METHODS AND SYSTEMS TO PERFORM PROTON COMPUTED TOMOGRAPHY 审中-公开
    用于执行质子计算机断层摄影术的方法和系统

    公开(公告)号:WO2017066358A1

    公开(公告)日:2017-04-20

    申请号:PCT/US2016/056693

    申请日:2016-10-12

    Abstract: Embodiments include methods and systems to perform computed tomography. Respiratory signal data and imaging data associated with a heart can be received, and a target area of the heart can be determined responsive to the imaging data. An initial energy and a direction of a proton beam to deliver a Bragg peak of the proton beam to the target area can be determined. The initial energy and the direction of the proton beam then can be modified responsive to the respiratory signal data to generate a modified initial energy and a modified direction. A proton computed tomography controller can be instructed to deliver the proton beam to the heart at the modified initial energy and the modified direction.

    Abstract translation: 实施例包括执行计算机断层摄影的方法和系统。 可以接收与心脏相关联的呼吸信号数据和成像数据,并且可以响应于成像数据来确定心脏的目标区域。 可以确定质子束的初始能量和方向以将质子束的布拉格峰传送至目标区域。 然后可以响应于呼吸信号数据修改质子束的初始能量和方向,以生成修改的初始能量和修改的方向。 质子计算机断层扫描控制器可以被指示将质子束以改变的初始能量和修改的方向递送到心脏。

    DUAL-LENS-GUN ELECTRON BEAM APPARATUS AND METHODS FOR HIGH-RESOLUTION IMAGING WITH BOTH HIGH AND LOW BEAM CURRENTS
    23.
    发明申请
    DUAL-LENS-GUN ELECTRON BEAM APPARATUS AND METHODS FOR HIGH-RESOLUTION IMAGING WITH BOTH HIGH AND LOW BEAM CURRENTS 审中-公开
    双镜头电子束装置和用于高分辨率成像和高光束和低光束电流的方法

    公开(公告)号:WO2014043557A1

    公开(公告)日:2014-03-20

    申请号:PCT/US2013/059788

    申请日:2013-09-13

    Abstract: One embodiment relates to an electron beam apparatus which includes a dual-lens electron gun for emitting an electron beam. The electron beam is a high beam-current electron beam in a first operating mode and a low beam-current electron beam in a second operating mode. The apparatus further includes a column aperture which is out of the path of the high beam-current electron beam in the first operating mode and is centered about an optical axis of the electron beam apparatus in the second operating mode. Another embodiment relates to an electron gun which includes a first gun lens, a beam limiting aperture, and a second gun lens. The first gun lens focuses the electrons before they pass through the beam-limiting aperture while the second gun lens focuses the electrons after they pass through the beam-limiting aperture. Other embodiments, aspects and features are also disclosed.

    Abstract translation: 一个实施例涉及一种电子束装置,其包括用于发射电子束的双透镜电子枪。 电子束是第一操作模式中的高束流电子束和处于第二操作模式的低束流电子束。 该装置还包括在第一操作模式中超出远光束电子束的路径的列孔径,并且在第二操作模式中围绕电子束装置的光轴居中。 另一实施例涉及一种电子枪,其包括第一枪式透镜,光束限制孔和第二枪形透镜。 第一个枪形透镜在电子通过光束限制光圈之前聚焦电子,而第二个枪形透镜在电子通过光束限制光圈后聚焦电子。 还公开了其它实施例,方面和特征。

    CONTROL METHOD FOR ELECTRON BEAM STERILIZING DEVICE AND DEVICE PERFORMING SAID METHOD
    24.
    发明申请
    CONTROL METHOD FOR ELECTRON BEAM STERILIZING DEVICE AND DEVICE PERFORMING SAID METHOD 审中-公开
    电子束灭菌装置的控制方法和执行方法的装置

    公开(公告)号:WO2010040454A1

    公开(公告)日:2010-04-15

    申请号:PCT/EP2009/006942

    申请日:2009-09-25

    Inventor: HOLM, Kurt

    Abstract: An electron beam sterilizing device, comprises: an electron- generating filament; a beam-shaper; an output window; a high-voltage supply, capable of creating a high-voltage potential between the electron-generating filament and the output window, for acceleration of electrons; a high-voltage supply for driving current through the electron-generating filament; a control unit for controlling the operation of the electron beam sterilizing device. The device is characterized in that the electron beam sterilizing device has at least three operational states: - an OFF-state, where there is no drive current through the electron-generating filament, - an ON-state, where the electron-generating filament is kept at a temperature above the emission temperature so as to generate electrons for sterilization, and - a standby state, between the OFF-state and ON-state, where the electron- generating filament is kept at a predetermined temperature just below the emission temperature, wherein the control unit is able to control the device to assume the standby state.

    Abstract translation: 一种电子束消毒装置,包括:电子发生丝; 光束整形器 输出窗口 能够在电子发生丝与输出窗之间产生高压电位的高压电源,用于加速电子; 用于驱动通过电子发生丝的电流的高压电源; 用于控制电子束消毒装置的操作的控制单元。 该装置的特征在于,电子束灭菌装置具有至少三种操作状态: - 通过电子发生丝不存在驱动电流的截止状态, - 产生电子发生丝的导通状态 保持在高于发射温度的温度下,以产生用于灭菌的电子,以及在断开状态和导通状态之间的待机状态,其中电子发生丝保持在正好低于发射温度的预定温度, 其中所述控制单元能够控制所述设备呈现待机状态。

    電子銃、電子銃の制御方法および制御プログラム並びに3次元造形装置
    25.
    发明申请
    電子銃、電子銃の制御方法および制御プログラム並びに3次元造形装置 审中-公开
    电子枪,电子枪控制方法和控制程序,以及三维扫描装置

    公开(公告)号:WO2016110996A1

    公开(公告)日:2016-07-14

    申请号:PCT/JP2015/050460

    申请日:2015-01-09

    Inventor: 佐藤 崇

    Abstract:  エミッション電流を変化させた場合に、電子ビームの輝度の低下を防止することを目的とする。電子銃であって、熱電子を放出するカソード(111)と、前記熱電子を集束するウェネルト電極(112)と、前記カソード(111)の先端から前記熱電子を引き出す制御電極(113)と、前記熱電子を加速して、電子ビームとして粉体に照射するアノード(114)と、前記ウェネルト電極(112)に印加するバイアス電圧および前記制御電極(113)に印加する制御電極電圧の少なくともいずれか一方を変化させることにより、前記電子ビームの輝度がピークを形成する、前記バイアス電圧と前記制御電極電圧との組合せを決定する最適条件収集制御手段(105)と、を備えた。

    Abstract translation: 本发明的目的是防止当发射电流改变时电子束的亮度降低。 电子枪包括用于发射热电子的阴极(111),用于聚焦热电子的Wehnelt电极(112),用于从阴极(111)的前端拉出热电子的控制电极(113), 阳极(114),其中热电子被加速并作为电子束照射到粉末上,以及最佳条件收集控制装置(105),其改变施加到Wehnelt电极(112)的偏置电压和 施加到控制电极(113)的控制电极电压,以便确定偏置电压和电子束的亮度形成峰值的控制电极电压的组合。

    Electron gun, method of controlling same, and electron beam additive manufacturing machine
    28.
    发明授权
    Electron gun, method of controlling same, and electron beam additive manufacturing machine 有权
    电子枪,控制方法以及电子束添加剂制造机

    公开(公告)号:US09269520B2

    公开(公告)日:2016-02-23

    申请号:US14621526

    申请日:2015-02-13

    Applicant: JEOL Ltd.

    Inventor: Takashi Satoh

    Abstract: There is disclosed a method of controlling an electron gun without causing decreases in brightness of the electron beam if a current-limiting aperture cannot be used. The electron gun (10) has a cathode (11), a Wehnelt electrode (12), a control electrode (13), an anode (14), and a controller (22). The Wehnelt electrode (12) has a first opening (12c) in which the tip of the cathode is inserted, and focuses thermal electrons emitted from the tip of the cathode (11). The thermal electrons emitted from the tip of the cathode (11) are caused to pass into a second opening (13c) by the control electrode (13). The anode (14) accelerates the thermal electrons emitted from the cathode (11) such that the thermal electrons passed through the second opening (13c) pass through a third opening (14b) and impinge as an electron beam (B1) on a powdered sample (8). The controller (22) sets the bias voltage and the control voltage based on combination conditions of the bias voltage and control voltage to maintain the brightness of the beam constant.

    Abstract translation: 如果不能使用限流孔,则公开了一种控制电子枪而不引起电子束亮度降低的方法。 电子枪(10)具有阴极(11),Wehnelt电极(12),控制电极(13),阳极(14)和控制器(22)。 Wehnelt电极(12)具有插入阴极顶端的第一开口(12c),并聚焦从阴极(11)的尖端发射的热电子。 从阴极(11)的顶端发射的热电子被控制电极(13)通入第二开口(13c)。 阳极(14)加速从阴极(11)发射的热电子,使得穿过第二开口(13c)的热电子通过第三开口(14b)并作为电子束(B1)撞击在粉末样品上 (8)。 控制器(22)基于偏置电压和控制电压的组合条件设置偏置电压和控制电压,以保持光束的亮度恒定。

    Control method for electron beam sterilizing device and device performing said method
    29.
    发明授权
    Control method for electron beam sterilizing device and device performing said method 有权
    执行所述方法的电子束消毒装置和装置的控制方法

    公开(公告)号:US08772743B2

    公开(公告)日:2014-07-08

    申请号:US13122914

    申请日:2009-09-25

    Applicant: Kurt Holm

    Inventor: Kurt Holm

    Abstract: An electron beam sterilizing device, comprises: an electron-generating filament; a beam-shaper; an output window; a high-voltage supply, capable of creating a high-voltage potential between the electron-generating filament and the output window, for acceleration of electrons; a high-voltage supply for driving current through the electron-generating filament; a control unit for controlling the operation of the electron beam sterilizing device. The electron beam sterilizing device has at least three operational states which include: an OFF-state, where there is no drive current through the electron-generating filament; an ON-state, where the electron-generating filament is kept at a temperature above the emission temperature so as to generate electrons for sterilization; and a standby state, between the OFF-state and ON-state, where the electron-generating filament is kept at a predetermined temperature just below the emission temperature. The control unit controls the device to assume the standby state.

    Abstract translation: 一种电子束消毒装置,包括:电子发生丝; 光束整形器 输出窗口 能够在电子发生丝与输出窗之间产生高压电位的高压电源,用于加速电子; 用于驱动通过电子发生丝的电流的高压电源; 用于控制电子束消毒装置的操作的控制单元。 电子束灭菌装置具有至少三种操作状态,包括:通过电子发生丝不存在驱动电流的关闭状态; 导通状态,其中电子发生丝保持在高于发射温度的温度以产生用于灭菌的电子; 以及在OFF状态和ON状态之间的待机状态,其中电子发生灯丝保持在正好低于发射温度的预定温度。 控制单元控制设备处于待机状态。

    Optical modulator of electron beam
    30.
    发明授权
    Optical modulator of electron beam 失效
    电子束光调制器

    公开(公告)号:US07728520B2

    公开(公告)日:2010-06-01

    申请号:US11035914

    申请日:2005-01-14

    CPC classification number: H01J21/04 H01J3/08 H01J29/52

    Abstract: An optoelectronic modulator is based on the concentration of an electron beam from an electron gun by a tapered cavity, which sides are photosensitive and change the electrical conductivity under the illumination of light (electromagnetic radiation). The light modulation causes the corresponding changes in the current transported across the walls of the cavity. The remaining part of the electron current exits the cavity aperture and forms an amplitude-modulated divergent electron beam.

    Abstract translation: 光电子调制器基于来自电子枪的锥形空腔的电子束的浓度,这些侧面是光敏的并且在光的照射下(电磁辐射)改变电导率。 光调制导致当前在空腔壁上传输的电流的相应变化。 电子电流的剩余部分离开腔孔并形成幅度调制的发散电子束。

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