X-RAY DEVICE THAT EMITS AN X-RAY BEAM WITH A SCANNING-LIKE MOVEMENT
    1.
    发明申请
    X-RAY DEVICE THAT EMITS AN X-RAY BEAM WITH A SCANNING-LIKE MOVEMENT 失效
    具有扫描类似运动的X射线束的X射线装置

    公开(公告)号:US20070183585A1

    公开(公告)日:2007-08-09

    申请号:US11737292

    申请日:2007-04-19

    IPC分类号: G21K5/10

    CPC分类号: A61B6/502 A61B6/4021 G21K1/04

    摘要: In a method for operating an x-ray device, an x-ray beam is generated at a focal spot of a rotary anode that is rotatable around a rotation axis, and the x-ray beam is gated with a slit-shaped diaphragm to produce a fan-shaped x-ray beam, that is moved through an examination region in the manner of a scan. To improve the image resolution, the fan-shaped x-ray beam can be moved over the examination region essentially in the direction of the rotational axis of the rotary anode by tilting the x-ray tube on the focal spot, with the x-ray tube being tilted on the focal spot so that the fan-shaped x-ray beam is always gated from the region of the overall emitted x-ray beam having the highest image resolution or the highest image definition in the movement through the examination region.

    摘要翻译: 在用于操作x射线装置的方法中,在可围绕旋转轴线旋转的旋转阳极的焦点处产生x射线束,并且X射线束被切割形状的隔膜浇注以产生 以扫描的方式移动通过检查区域的扇形X射线束。 为了提高图像分辨率,通过使x射线管在焦点上倾斜,可以使基本上在旋转阳极的旋转轴线的方向上的扇形X射线束移动到检查区域上 管子在焦斑上倾斜,使得扇形X射线束总是从具有最高图像分辨率的全面发射的x射线束的区域或通过检查区域的移动中的最高图像定义选通。

    X-ray device that emits an x-ray beam with a scanning-like movement
    2.
    发明申请
    X-ray device that emits an x-ray beam with a scanning-like movement 失效
    X射线装置以扫描状运动发射X射线束

    公开(公告)号:US20060034426A1

    公开(公告)日:2006-02-16

    申请号:US11197273

    申请日:2005-08-04

    IPC分类号: H01J35/10

    CPC分类号: A61B6/502 A61B6/4021 G21K1/04

    摘要: An x-ray device includes an x-ray tube for generation of an x-ray emanating from a focal spot of a rotary anode rotatable around a rotation axis and a slit-shaped diaphragm for generation of a fan-shaped x-ray beam that is gated from the x-ray and emission is moved through an examination region in the manner of a scan. To improve the image resolution, the fan-shaped x-ray beam can be moved over the examination region essentially in the direction of the rotational axis of the rotary anode by tilting the x-ray tube on the focal spot, with the x-ray tube being tilted on the focal spot so that the fan-shaped x-ray beam is always gated from the region of the overall emitted x-ray beam having the highest-image resolution or the highest image definition in the movement through the examination region.

    摘要翻译: X射线装置包括用于产生从旋转轴可旋转的阳极的焦点发出的X射线的X射线管和用于产生扇形X射线束的狭缝状光阑, 从x射线门控,并以扫描的方式将发射物移动通过检查区域。 为了提高图像分辨率,通过使x射线管在焦点上倾斜,可以使基本上在旋转阳极的旋转轴线的方向上的扇形X射线束移动到检查区域上 管被倾斜在焦点上,使得扇形X射线束总是从具有最高图像分辨率的全部发射的x射线束的区域或通过检查区域的移动中的最高图像定义选通。

    Method for estimating the remaining life span of an X-ray radiator
    4.
    发明申请
    Method for estimating the remaining life span of an X-ray radiator 有权
    用于估计X射线辐射器的剩余寿命的方法

    公开(公告)号:US20070189463A1

    公开(公告)日:2007-08-16

    申请号:US10922674

    申请日:2004-08-20

    IPC分类号: G01D18/00

    CPC分类号: G01R31/257 H05G1/28

    摘要: In a method for estimating the remaining life span of an X-ray radiator that has been installed in an X-ray apparatus and is operational, under specified test conditions and at time intervals, a measurement value that is indicative for the remaining life span of the X-ray radiator is determined and stored in a. A forecasted progression of future measurement values is then forecasted from the instantaneous measurement value and previous measurement values that were determined under identical test conditions, which also are stored in the memory. The forecasted remaining life span of the X-ray radiator is then determined based on the forecasted progression and a limit value that is associated with the individual X-ray radiator, which is stored in the memory. Alternatively or additionally, a characteristic curve that is associated with the measurement value and with the individual X-ray radiator is stored in the memory. In that case, the forecasted remaining life span of the Xray radiator is forecasted based on the instantaneous measurement value, the characteristic curve, and the limit value.

    摘要翻译: 在用于估计已经安装在X射线设备中并且可操作的X射线辐射器的剩余寿命的方法中,在指定的测试条件和时间间隔下,指示剩余寿命的测量值 X射线辐射器被确定并存储在a中。 然后根据同样的测试条件确定的瞬时测量值和以前的测量值来预测未来测量值的预测进度,这些测量值也存储在存储器中。 然后基于预测的进程和与存储在存储器中的各个X射线辐射器相关联的限制值来确定X射线辐射器的预测剩余寿命。 或者或另外,与测量值和各个X射线辐射器相关联的特性曲线存储在存储器中。 在这种情况下,根据瞬时测量值,特性曲线和极限值预测Xray散热器的预测剩余寿命。

    X-ray radiator with thermionic emission of electrons from a laser-irradiated cathode
    6.
    发明申请
    X-ray radiator with thermionic emission of electrons from a laser-irradiated cathode 失效
    来自激光照射阴极的电子发射的X射线辐射器

    公开(公告)号:US20070064872A1

    公开(公告)日:2007-03-22

    申请号:US11520065

    申请日:2006-09-12

    IPC分类号: H01J35/14

    摘要: An x-ray radiator has a vacuum housing that can rotate around an axis, a cathode that thermionically emits electrons upon irradiation thereof by a laser beam, an anode that emits x-rays upon being struck by the electrons, an insulator that is part of the vacuum housing and that separates the cathode from the anode, electrodes or terminals to apply a high voltage between the anode and the cathode to accelerate the emitted electrons toward the anode to form an electron beam, a drive arrangement for rotation of the vacuum housing around its axis, an arrangement for cooling components of the x-ray radiator, and an arrangement that directs and focuses the laser beam from a stationary source that is arranged outside of the vacuum housing onto a spatially stationary laser focal spot on the cathode.

    摘要翻译: X射线辐射器具有可以围绕轴线旋转的真空壳体,通过激光束照射时热离子发射电子的阴极,被电子撞击时发射x射线的阳极,作为 真空壳体并且将阴极与阳极,电极或端子分离以在阳极和阴极之间施加高电压,以将发射的电子加速到阳极以形成电子束,用于围绕真空壳体旋转的驱动装置 其轴线,用于冷却x射线辐射器的部件的布置,以及将来自设置在真空壳体外部的固定源的激光束引导并聚焦到阴极上的空间固定的激光焦点上的布置。

    High-performance anode plate for a directly cooled rotary piston x-ray tube
    9.
    发明申请
    High-performance anode plate for a directly cooled rotary piston x-ray tube 有权
    用于直接冷却旋转活塞x射线管的高性能阳极板

    公开(公告)号:US20050185761A1

    公开(公告)日:2005-08-25

    申请号:US11041170

    申请日:2005-01-20

    摘要: A high-performance anode plate for a directly cooled rotary piston x-ray tube is formed of a high-temperature-resistant material such as tungsten, molybdenum or a combination of both materials. In the region of the focal spot path, the underside of the anode plate is shaped, and/or in this region a different highly heat-conductive material is inserted or applied, such that an improved heat dissipation and thus a lower temperature gradient results.

    摘要翻译: 用于直接冷却的旋转活塞x射线管的高性能阳极板由诸如钨,钼或两种材料的组合的耐高温材料形成。 在焦点路径的区域中,阳极板的下侧成形,和/或在该区域插入或施加不同的高导热材料,从而导致改善的散热并因此导致较低的温度梯度。

    Laser stimulated cathode
    10.
    发明授权
    Laser stimulated cathode 有权
    激光刺激阴极

    公开(公告)号:US07816853B2

    公开(公告)日:2010-10-19

    申请号:US12188353

    申请日:2008-08-08

    IPC分类号: H01J1/62

    CPC分类号: H01J35/065 H01J1/34

    摘要: A cathode has an emission layer that thermionically emits electrons upon exposure with a laser beam. The material of the emission layer has a product of density (ρ), measured in kg m 3 , heat capacity (Cp), measured in J kg ⁢ ⁢ K and heat conductivity (λ), measured in W mK that is, at room temperature, maximally 500,000 J 2 m 4 ⁢ K 2 ⁢ s . Such a cathode has an improved thermionic emission of electrons.

    摘要翻译: 阴极具有在用激光束曝光时热离子发射电子的发射层。 发射层的材料具有密度(&rgr。)的乘积,以kg m 3测量,热容量(Cp),以J kg·K K测量的热导率(λ),以W mK测量,即在 室温最大为500,000J 2 m 4 K 2 s。 这种阴极具有改进的电子的热离子发射。