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    LASER STIMULATED CATHODE
    22.
    发明申请
    LASER STIMULATED CATHODE 有权
    激光刺激的阴茎

    公开(公告)号：US20090041195A1

    公开(公告)日：2009-02-12

    申请号：US12188353

    申请日：2008-08-08

    申请人： Joerg Freudenberger ,  Sven Fritzler ,  Manfred Fuchs ,  Detlef Mattern ,  Peter Roehrer ,  Peter Schardt

    发明人： Joerg Freudenberger ,  Sven Fritzler ,  Manfred Fuchs ,  Detlef Mattern ,  Peter Roehrer ,  Peter Schardt

    IPC分类号： H01J35/06

    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（rho）的乘积，以 kg m 3 ， /数学>热容量（Cp），以 J kg 在 =“scroll”> 在室温下，最大为500,000 J 2 mrow> > 4 这样的阴极具有改进的电子的热离子发射。

      X-ray radiator with thermionic emission of electrons from a laser-irradiated cathode
      26.
      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

      申请人： Jorg Freudenberger ,  Sven Fritzler ,  Manfred Fuchs ,  Detlef Mattern ,  Peter Rohrer ,  Peter Schardt

      发明人： Jorg Freudenberger ,  Sven Fritzler ,  Manfred Fuchs ,  Detlef Mattern ,  Peter Rohrer ,  Peter Schardt

      IPC分类号： H01J35/14

      CPC分类号： H01J35/065 ,  H01J35/16 ,  H01J35/26 ,  H01J35/305 ,  H01J2235/062 ,  H01J2235/066 ,  H01J2235/068 ,  H01J2235/1006 ,  H01J2235/162

      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。

      X-ray computed tomography apparatus of the electron beam type with electron beam intensity measuring capacity
      28.
      发明授权
      X-ray computed tomography apparatus of the electron beam type with electron beam intensity measuring capacity 失效
      具有电子束强度测量能力的电子束型X射线计算机断层摄影装置

      公开(公告)号：US5633906A

      公开(公告)日：1997-05-27

      申请号：US632385

      申请日：1996-04-10

      申请人： Erich Hell ,  Manfred Fuchs

      发明人： Erich Hell ,  Manfred Fuchs

      IPC分类号： A61B6/03 ,  G01N23/04 ,  H01J35/30

      CPC分类号： A61B6/032 ,  A61B6/4028 ,  G01N23/046 ,  H01J35/30 ,  G01N2223/419

      摘要： In an x-ray beam computed tomography apparatus having a ring anode scanned by an electron beam for producing an x-ray beam which rotates around an examination region, measurement of the intensity distribution in the electron beam is enabled at various locations of the ring anode during operation. For this purpose, the ring anode can have at a number of locations around its circumferential direction, insulated sub-anodes with an insulating interspace therebetween, to which a measuring arrangement for measuring the charge distribution, and thus the intensity distribution, in the electron beam is connected. The charge distribution is measured when the electron beam sweeps the interspace between two sub-anodes.

      摘要翻译： 在具有通过电子束扫描的环形阳极以产生围绕检查区域旋转的X射线束的X射线束计算机断层摄影装置中，在环形阳极的各个位置处测量电子束中的强度分布 在运行期间。 为此，环形阳极可以在其圆周方向上具有多个位置，在其之间具有绝缘间隙的绝缘子阳极，测量电子分布的测量装置以及因此电子束中的强度分布 已连接。 当电子束扫描两个子阳极之间的间隙时，测量电荷分布。

      Electron generating assembly for an x-ray tube having a cathode and having an electrode system for accelerating the electrons emanating from the cathode
      30.
      发明授权
      Electron generating assembly for an x-ray tube having a cathode and having an electrode system for accelerating the electrons emanating from the cathode 失效
      用于具有阴极并且具有用于加速从阴极发出的电子的电极系统的X射线管的电子发生组件

      公开(公告)号：US5576549A

      公开(公告)日：1996-11-19

      申请号：US496277

      申请日：1995-06-28

      申请人： Erich Hell ,  Manfred Fuchs

      发明人： Erich Hell ,  Manfred Fuchs

      IPC分类号： H01J35/06 ,  H01J35/14 ,  H01J29/48

      CPC分类号： H01J43/246 ,  H01J35/06 ,  H01J35/14 ,  H01J2201/342

      摘要： An electron generating assembly for an x-ray tube has a thermionic cathode and an electrode system for accelerating electrons emitted by the thermionic cathode, and an electron multiplier disposed in the electron path. In order to achieve a given electron beam density, the electron beam current emitted by the cathode can be reduced dependent on the multiplication factor of the electron multiplier, thereby extending the service life of the overall assembly. The electron multiplier can be controllable.

      摘要翻译： 用于X射线管的电子发生组件具有热离子阴极和用于加速由热离子阴极发射的电子的电极系统和设置在电子路径中的电子倍增器。 为了获得给定的电子束密度，阴极发射的电子束电流可以根据电子倍增器的倍增因子而减小，从而延长了整个组件的使用寿命。 电子倍增器可以控制。