RAY CALIBRATION DEVICE AND OPERATING METHOD THEREOF, AND RADIATION IMAGING SYSTEM AND OPERATING METHOD THEREOF

    公开(公告)号:US20170184513A1

    公开(公告)日:2017-06-29

    申请号:US15281038

    申请日:2016-09-29

    Abstract: The present disclosure provides a ray calibration device and a working method thereof, and a radiation imaging system and a working method thereof, and belongs to the field of radiation imaging technology. The present disclosure can solve the problems that the existing calibration devices have low calibration efficiency and require relatively large spaces. The ray calibration device of the present disclosure includes a driving part, a cam part and a calibration part, wherein the calibration part is located below the cam part; the driving part is adapted to drive the cam part to rotate; and the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards.

    APPARATUS AND METHOD FOR VOLTAGE ALTERNATING PULSE OUTPUT
    4.
    发明申请
    APPARATUS AND METHOD FOR VOLTAGE ALTERNATING PULSE OUTPUT 有权
    电压交替脉冲输出的装置和方法

    公开(公告)号:US20140077619A1

    公开(公告)日:2014-03-20

    申请号:US14116074

    申请日:2012-12-28

    CPC classification number: H03K3/57 H02M1/088 H02M2003/077 H03K3/64

    Abstract: The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t1, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t2, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time t1 and time t2 appear alternately.

    Abstract translation: 本发明提供一种基于交替组触发的高电压脉冲调制电源,包括:用于向高电压脉冲调制电源供电的直流稳压电压源; 多个固态开关; 与所述多个固态开关相对应的多个触发器,其中每个触发器向其对应的固态开关提供触发信号以打开所述对应的固态开关,其中所述多个触发器被分成至少两个组 的触发器 时间控制模块,其在时间t1控制所述多个触发器以产生触发信号,以同时接通所述多个固态开关,并且在时间t2,控制一组所述至少两组 触发器产生触发信号以打开与该组触发相对应的固态开关,其中时间t1和时间t2交替出现。

    Filament power supply for electron accelerator and electron accelerator

    公开(公告)号:US10694616B2

    公开(公告)日:2020-06-23

    申请号:US16667849

    申请日:2019-10-29

    Abstract: The present disclosure provides a filament power supply for an electron accelerator and an electron accelerator. The filament power supply includes: a rectifier circuit configured to convert a power frequency AC voltage signal into a DC voltage signal; an inverter circuit configured to convert the DC voltage signal into an AC voltage signal; a sampling circuit configured to sample the AC voltage signal to obtain a current sampling signal or a voltage sampling signal; a pulse width modulation control chip configured to adjust a pulse width modulation signal until a voltage of the current sampling signal is equal to that of a reference current signal, or a voltage of the voltage sampling signal is equal to that of a reference voltage signal; a modulation circuit configured to modulate the power frequency AC voltage signal to obtain a modulation signal and output the pulse width modulation signal and the modulation signal.

    Apparatus and method for voltage alternating pulse output

    公开(公告)号:US09843313B2

    公开(公告)日:2017-12-12

    申请号:US14116074

    申请日:2012-12-28

    CPC classification number: H03K3/57 H02M1/088 H02M2003/077 H03K3/64

    Abstract: The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t1, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t2, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time t1 and time t2 appear alternately.

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