Device and method for optimizing diffusion section of electron beam

    公开(公告)号:US09767985B2

    公开(公告)日:2017-09-19

    申请号:US14895708

    申请日:2014-10-17

    Abstract: Provided is a device for optimizing a diffusion section of an electron beam, comprising two groups of permanent magnets, a magnetic field formed by the four magnetic poles extending the electron beam in a longitudinal direction, and compressing the electron beam in a transverse direction, so that the electron beam becomes an approximate ellipse; another magnetic field formed by the eight magnetic poles optimizing an edge of a dispersed electron-beam bunch into an approximate rectangle; by controlling the four longitudinal connection mechanisms so that the upper magnetic yoke and the lower magnetic yoke of the first group of permanent magnets move synchronously towards the center thereof thereby longitudinally compressing the electron beam in the shape of an approximate ellipse, and the upper magnetic yoke and the lower magnetic yoke of the second group of permanent magnets move synchronously towards the center thereof thereby longitudinally compressing the electron beam in the shape of an approximate rectangle, and the process of longitudinal compression is repeated until a longitudinal size of the electron-beam bunch is reduced to 80 mm. The invention is capable of reasonably compressing a longitudinal size of an electron-beam bunch after diffusion to approximately 80 mm, which ensures optimum irradiation uniformity and efficiency, and enables the longitudinal size to be within the range of a conventional titanium window.

    Electron beam emitter with increased electron transmission efficiency
    69.
    发明授权
    Electron beam emitter with increased electron transmission efficiency 有权
    电子束发射器具有增加的电子传输效率

    公开(公告)号:US09576765B2

    公开(公告)日:2017-02-21

    申请号:US14488862

    申请日:2014-09-17

    Applicant: Kaveh Bakhtari

    Inventor: Kaveh Bakhtari

    CPC classification number: H01J33/04 H01J1/16 H01J33/00

    Abstract: An electron beam emitter comprises an electron emission source capable of emitting electrons; a vacuum chamber containing the electron emission source; and a transmission window that keeps airtightness of the vacuum chamber and is capable of transmitting the electrons from the electron emission source. The transmission window includes a foil that transmits the electrons and a grid that does not transmit the electrons. The electron emission source includes an emission portion that emits the electrons and a non-emission portion that does not emit the electrons. The emission portion has a lower work function than the non-emission portion. The non-emission portion is prepared so as to prevent the electrons from reaching the grid.

    Abstract translation: 电子束发射器包括能够发射电子的电子发射源; 包含电子发射源的真空室; 以及保持真空室的气密并且能够从电子发射源透射电子的透射窗。 透射窗包括传递电子的箔和不透射电子的栅格。 电子发射源包括发射电子的发射部分和不发射电子的非发射部分。 发光部的功函数比非发光部低。 制备非发射部分以防止电子到达电网。

    CONTROL METHOD FOR ELECTRON BEAM STERILIZING DEVICE AND DEVICE PERFORMING SAID METHOD
    70.
    发明申请
    CONTROL METHOD FOR ELECTRON BEAM STERILIZING DEVICE AND DEVICE PERFORMING SAID METHOD 有权
    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:US20110198513A1

    公开(公告)日:2011-08-18

    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。

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