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92 条记录 (耗时 0.019 秒)

    X-RAY SOURCE
    54.
    发明公开
    X-RAY SOURCE 审中-公开

    公开(公告)号：EP3342259A1

    公开(公告)日：2018-07-04

    申请号：EP16762745.4

    申请日：2016-08-24

    申请人： Koninklijke Philips N.V.

    发明人： PROKSA, Roland ,  MILLER, Lester, Donald

    IPC分类号： H05G1/20 ,  H05G1/08 ,  A61B6/03 ,  H05G1/50

    CPC分类号： H05G1/20 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/405 ,  H05G1/085 ,  H05G1/50

    摘要： The invention relates to an X-ray source (2) for an imaging device comprising at least three electrodes; a power supply configured to provide a primary gap voltage between a first (13) and a second (12) electrode among said at least three electrodes, said primary gap voltage having an AC component, causing a transport of electrons from the first electrode toward the second electrode; and a controller configured to supply a variable potential on a third electrode (14) among said at least three electrodes, wherein the X-ray source is configured to generate an X-ray beam with an energy spectrum based on the voltage difference between the first electrode and the second electrode, and wherein the controller is configured to set the variable potential on the third electrode to a value causing at least a partial blocking of said transport of electrons, whenever a predetermined condition is met.

    Power system of x-ray tube and method of controlling the same
    56.
    发明公开
    Power system of x-ray tube and method of controlling the same 审中-公开
    StromversorgungssystemfüreineRöntgenröhreund Steuerungsverfahrendafür

    公开(公告)号：EP2869673A1

    公开(公告)日：2015-05-06

    申请号：EP14154535.0

    申请日：2014-02-10

    申请人： Delta Electronics, Inc.

    发明人： Wand, Ming-Whang ,  Chen, Hong-Wen ,  Lee, Chung-Heng

    IPC分类号： H05G1/56 ,  H05G1/08

    CPC分类号： H05G1/32 ,  H05G1/085 ,  H05G1/10 ,  H05G1/56

    摘要： A method of controlling a power system of an X-ray tube (50) is provided to supply power to the X-ray tube (50) and control the emission operation of the X-ray tube (50). The method includes following steps: First, it is to judge whether a high voltage operation of the X-ray tube (50) is started up (S103). Afterward, a high voltage reference signal (S HVRF ) is gradually increased when the high voltage operation of the X-ray tube (50) is started up (S105). Afterward, it is to judge whether the high voltage reference signal (S HVRF ) is increased to an upper limit voltage level (V H ) (S106). Finally, the emission operation of the X-ray tube (50) is executed when the high voltage reference signal (S HVRF ) is increased to the upper limit voltage level (V H ) (S108).

    摘要翻译： 提供一种控制X射线管（50）的电力系统的方法，以向X射线管（50）供电并控制X射线管（50）的发射操作。 该方法包括以下步骤：首先，判断X射线管（50）的高电压动作是否起动（S103）。 之后，当X射线管（50）的高压操作启动时，高电压参考信号（S HVRF）逐渐增加（S105）。 之后，判定高电压基准信号（S HVRF）是否增加到上限电压电平（V H）（S106）。 最后，当高电压参考信号（S HVRF）增加到上限电压电平（V H）时，执行X射线管（50）的发射操作（S108）。

    Portable x-ray device
    57.
    发明公开
    Portable x-ray device 审中-公开
    TragbareRöntgenstrahlvorrichtung

    公开(公告)号：EP2785150A1

    公开(公告)日：2014-10-01

    申请号：EP14167228.7

    申请日：2005-02-18

    申请人： Aribex, Inc.

    发明人： Turner, D. Clark ,  Turner, Sean Michael

    IPC分类号： H05G1/10 ,  H05G1/06 ,  H05G1/08 ,  A61B6/00

    CPC分类号： H05G1/06 ,  A61B6/4405 ,  A61B6/508 ,  A61B6/548 ,  H05G1/08 ,  H05G1/10

    摘要： Portable x-ray devices and methods for using such devices are described. The devices (10) have an x-ray tube (30) powered by an integrated power system (34, 40). The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component (60). With these components, the size and weight of the x-ray devices can be reduced, and the portability of the devices enhanced. Thus, the portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such as nursing homes, home healthcare and teaching classrooms. This portability feature can be particularly useful in multi-suite medical and dental offices where a single x-ray device can be used in multiple offices instead of single using an x-ray device in each office.

    摘要翻译： 描述便携式x射线装置及其使用方法。 装置（10）具有由集成电力系统（34,40）供电的x射线管（30）。 X射线管用含有高Z物质的低密度绝缘材料屏蔽。 所述设备还可以具有集成的显示组件（60）。 利用这些部件，可以减小x射线装置的尺寸和重量，并且增强装置的便携性。 因此，便携式x射线设备对于便携性是诸如在野外工作，远程操作和诸如养老院，家庭医疗保健和教学教室之类的移动操作的重要特征的应用尤其有用。 这种便携式功能在多套医疗和牙科诊所中特别有用，其中单个X射线设备可以在多个办公室中使用，而不是在每个办公室使用x射线设备。

    X-RAY TUBE SYSTEM
    59.
    发明授权
    X-RAY TUBE SYSTEM 有权
    射线管球部

    公开(公告)号：EP1514458B1

    公开(公告)日：2011-12-07

    申请号：EP03725485.1

    申请日：2003-05-23

    申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

    发明人： NEGLE, Hans,

    IPC分类号： H05G1/08 ,  H01J35/02

    CPC分类号： H01J35/02 ,  H05G1/08

    摘要： The invention relates to an X-ray tube which includes a device for at least substantially protecting an object to be examined against the incidence of undesirable X-rays (E) which can be produced notably by the decay of a residual or surplus charge present in a high-voltage circuit after an X-ray exposure. To this end there is provided at least one device (341, 342) for deflecting and/or defocusing the electron beam (E) produced by the residual and/or surplus charge in such a manner that at least it is not incident to a significant extent on a region (22) of an anode (2) wherefrom X-rays excited thereby are directed towards an object to be examined.

    TRIGGERING OF SOLID STATE X-RAY IMAGERS WITH NON-DESTRUCTIVE READOUT CAPABILITY
    60.
    发明授权
    TRIGGERING OF SOLID STATE X-RAY IMAGERS WITH NON-DESTRUCTIVE READOUT CAPABILITY 有权
    地段管的X射线图像器件与无破坏ELITE FITNESS RELEASE

    公开(公告)号：EP1308070B1

    公开(公告)日：2010-12-01

    申请号：EP01948687.7

    申请日：2001-06-22

    申请人： AFP Imaging Corporation ,  Fröjdh, Christer

    发明人： FROJDH, Christer

    IPC分类号： H05G1/08 ,  H05G1/64 ,  H04N3/14 ,  G01T1/00 ,  A61B5/05 ,  G01T1/16 ,  H04N5/32 ,  H05G1/60

    CPC分类号： G01T1/17 ,  G01T7/00 ,  H04N5/2353 ,  H04N5/32

    摘要： A number of randomly distributed pixels in a solid state X-ray imager are designated reference pixels. The distribution of reference pixels may be either totally random or in a limited number of rows or columns. The reference pixels may include predetermined pixels or pixel like elements located in rows or columns distributed in at least two different locations on the sensor. The reference pixels are well distributed to avoid missed exposures due to shading of the reference pixels by dense objects. To determine commencement of exposure the reference pixels are continuously monitored for signal. If the signal level in a predetermined minimum number of pixels exceeds the predetermined threshold, an image capture sequence starts. Otherwise, the entire image sensor is cleared and the signal monitoring continues. The threshold level is set to prevent accidental triggering by dark current at all operating temperatures of interest. Image readout is either initiated after waiting a fixed amount of time or by monitoring the change in the accumulated signal at the reference pixels. If the signal no longer changes then it is determined that the X-ray pulse has terminated and readout can be initiated.