Multi-segment anode target for an X-ray tube of the rotary anode type with each anode disk segment having its own anode inclination angle with respect to a plane normal to the rotational axis of the rotary anode and X-ray tube comprising a rotary anode with such a multi-segment anode target
    31.
    发明授权
    Multi-segment anode target for an X-ray tube of the rotary anode type with each anode disk segment having its own anode inclination angle with respect to a plane normal to the rotational axis of the rotary anode and X-ray tube comprising a rotary anode with such a multi-segment anode target 失效
    用于旋转阳极型X射线管的多段阳极靶,每个阳极盘段具有相对于垂直于旋转阳极的旋转轴的平面的阳极倾斜角和包括旋转阳极的X射线管 具有这样的多段阳极靶

    公开(公告)号:US08520803B2

    公开(公告)日:2013-08-27

    申请号:US13058341

    申请日:2009-08-06

    IPC分类号: H01J35/08

    CPC分类号: H01J35/10 H01J2235/086

    摘要: The present invention refers to X-ray tubes for use in imaging applications with an improved power rating and more particularly, to a multi-segment anode target (102′) for an X-ray based scanner system using an X-ray tube of the rotary anode type; the X-ray tube including a rotatably supported essentially disk-shaped rotary anode (102) with an anode target (102′) for emitting X-radiation when being exposed to an electron beam (105a) incident on a surface of the anode target (102′), wherein the rotary anode disk (102) is divided into at least two anode disk segments (102a and 102b) having a conical surface inclined by a distinct acute angle (α) with respect to a plane normal to the rotational axis (103) of the rotary anode disk (102), thus having its own focal track width. An advantage of the invention consists in an enhanced image quality compared to conventional rotary anodes as known from the prior art.

    摘要翻译: 本发明涉及用于具有改进的额定功率的成像应用中的X射线管,更具体地,涉及使用X射线管的X射线基扫描器系统的多段阳极靶(102') 旋转阳极型; 所述X射线管包括可旋转地支撑的基本盘形的旋转阳极(102),所述阳极靶(102')当暴露于入射在所述阳极靶的表面上的电子束(105a)时发射X射线 102'),其中所述旋转阳极盘(102)被分成至少两个阳极盘段(102a和102b),所述阳极盘段具有相对于垂直于所述旋转轴线的平面倾斜锐角(α)的锥形表面( 103),因此具有其自身的焦点轨迹宽度。 与现有技术中已知的常规旋转阳极相比,本发明的优点在于增强的图像质量。

    BALANCING OF THE ROTARY ANODE OF AN X-RAY TUBE
    32.
    发明申请
    BALANCING OF THE ROTARY ANODE OF AN X-RAY TUBE 有权
    X射线管的旋转阳极的平衡

    公开(公告)号:US20130070903A1

    公开(公告)日:2013-03-21

    申请号:US13388063

    申请日:2010-09-08

    IPC分类号: H01J35/10 H01J9/02

    摘要: The invention relates to an X-ray tube (12) with a rotatable anode (30) for generating X-rays and an X-ray apparatus (10) with such an X-ray tube and a method for balancing a rotary anode of an X-ray tube. In order to provide a balancing of the rotary anode applicable to an anode mounted inside an X-ray tube, an X-ray tube with a rotatable anode (30) for generating X-rays is provided, wherein the anode comprises an anode disc (32) fixedly mounted to a rotatably driven support body (44, 46), which support body is rotatably supported by a bearing arrangement (34). The anode comprises at least one balancing cavity (70) to adjust the center of gravity of the anode, which balancing cavity (70) is partly filled with a balancing material (72) being solid at operating temperature of the X-ray tube and liquid at a higher temperature. Further, a method for balancing a rotary anode of an X-ray tube is provided, comprising the following steps: a) determining an imbalance of the anode; b) heating up a balancing material which is arranged inside at least one balancing cavity, which balancing material is solid at operating temperature of the X-ray tube and liquid at a higher temperature, such that the balancing material becomes liquid; c) dislocating at least a part of the balancing material inside the balancing cavity such that the imbalance of the anode is at least partially compensated; and d) cooling the balancing material, such that the balancing material becomes solid.

    摘要翻译: 本发明涉及具有用于产生X射线的可旋转阳极(30)和具有这种X射线管的X射线装置(10)的X射线管(12)和用于平衡 X光管。 为了提供适用于安装在X射线管内的阳极的旋转阳极的平衡,提供了具有用于产生X射线的可旋转阳极(30)的X射线管,其中阳极包括阳极盘 32),其固定地安装到可旋转地驱动的支撑体(44,46)上,所述支撑体由轴承装置(34)可旋转地支撑。 阳极包括至少一个平衡腔(70)以调节阳极的重心,该平衡腔(70)部分地填充有在X射线管和液体的操作温度下是固体的平衡材料(72) 在较高的温度。 此外,提供了一种用于平衡X射线管的旋转阳极的方法,包括以下步骤:a)确定阳极的不平衡; b)加热布置在至少一个平衡腔内的平衡材料,所述平衡材料在所述X射线管的操作温度和在较高温度下的液体是固体的,使得所述平衡材料变成液体; c)使所述平衡腔内的所述平衡材料的至少一部分脱位,使得所述阳极的不平衡被至少部分地补偿; 和d)冷却平衡材料,使得平衡材料变得固体。

    Fast dose modulation using Z-deflection in a rotaring anode or rotaring frame tube
    33.
    发明授权
    Fast dose modulation using Z-deflection in a rotaring anode or rotaring frame tube 有权
    在旋转阳极或旋转框架管中使用Z偏转的快速剂量调制

    公开(公告)号:US08189742B2

    公开(公告)日:2012-05-29

    申请号:US12664451

    申请日:2008-06-17

    IPC分类号: H01J35/30

    摘要: A fast dose modulation using a z-deflection in a rotating anode or a rotating frame tube, where the electron beam is deflected from a first focal spot region to a second focal spot region being formed on the anode, wherein only the electromagnetic beam generated in the first focal spot region contributes to the useful electromagnetic exposure beam, wherein the second focal spot region is designed to avoid emission of electromagnetic beams into the direction of a useful electromagnetic beam direction.

    摘要翻译: 在旋转阳极或旋转框架管中使用z偏转的快速剂量调制,其中电子束从形成在阳极上的第一焦点区域偏转到第二焦斑区域,其中仅电子束产生于 第一焦点区域有助于有用的电磁辐射光束,其中第二焦斑区域被设计为避免电磁束发射到有用的电磁波束方向的方向。

    AUXILIARY GRID ELECTRODE FOR X-RAY TUBES
    34.
    发明申请
    AUXILIARY GRID ELECTRODE FOR X-RAY TUBES 有权
    用于X射线管的辅助电极

    公开(公告)号:US20110235785A1

    公开(公告)日:2011-09-29

    申请号:US13131086

    申请日:2009-11-23

    IPC分类号: H01J35/14

    摘要: The present invention refers to an X-ray tube of the rotary-anode type which comprises at least one temporarily negatively biased auxiliary grid electrode (119) with an aperture through which an electron beam (115) emitted by a tube cathode's thermoionic electron emitter (111) can pass. As an alternative thereto, the auxiliary grid electrode (119) may also be positively biased so as to enhance electron emission from a thermoionic electron emitter (111). The auxiliary grid electrode may thereby be connected to a supply voltage UAUX of a controllable voltage supply unit by means of a feedthrough cable (120) serving as a feeding line for providing the main control grid (112) with a grid supply voltage UG.

    摘要翻译: 本发明涉及一种旋转阳极型X射线管,其包括至少一个具有孔的暂时负偏置的辅助栅电极(119),电子束(115)由管阴极的热分子电子发射器( 111)可以通过。 作为替代方案,辅助栅电极(119)也可以被正偏置,以便增强来自热电子发射体(111)的电子发射。 因此,辅助栅极可以通过用作为主控电网(112)提供电网电源电压UG的馈电线的馈通电缆(120)连接到可控电压供应单元的电源电压UAUX。

    X-RAY TUBE WITH PASSIVE ION COLLECTING ELECTRODE
    35.
    发明申请
    X-RAY TUBE WITH PASSIVE ION COLLECTING ELECTRODE 失效
    X射线管与被动离子收集电极

    公开(公告)号:US20110038463A1

    公开(公告)日:2011-02-17

    申请号:US12936990

    申请日:2009-04-07

    IPC分类号: H01J35/16 B82Y99/00

    摘要: An X-ray tube (1) comprising a cathode (3), an anode (5) and a further electrode (7) is proposed. Therein, the further electrode is arranged and adapted such that, due to impact of ‘free electrons (27) coming from the anode (5), the further electrode (7) negatively charges to an electrical potential lying between a cathode's potential and an anode's potential. The further electrode (7) may be passive, i.e. substantially electrically isolated and not connected to an active external voltage supply. The further electrode (7) may act as an ion pump removing ions from within a primary electron beam (21) and furthermore also removing atoms of residual gas within the housing (11) of the X-ray tube (1). In order to further increase the ion pumping capability of the further electrode (7), a magnetic field generator (61) can be arranged adjacent to the further electrode (7).

    摘要翻译: 提出了包括阴极(3),阳极(5)和另外的电极(7)的X射线管(1)。 其中,另外的电极被布置和适配成使得由于来自阳极(5)的自由电子(27)的冲击,另外的电极(7)负电荷到位于阴极电位和阳极 潜在。 另外的电极(7)可以是无源的,即基本上电隔离并且不连接到有源外部电压源。 另外的电极(7)可以用作从一次电子束(21)内去除离子的离子泵,并且还去除X射线管(1)的壳体(11)内的残余气体的原子。 为了进一步提高另一电极(7)的离子泵浦能力,可以将磁场发生器(61)布置成与另一电极(7)相邻。