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    Photomultiplier with secondary electron shielding means
    141.
    发明授权
    Photomultiplier with secondary electron shielding means 失效
    具有二次电子屏蔽装置的光电倍增管

    公开(公告)号：US4825066A

    公开(公告)日：1989-04-25

    申请号：US155842

    申请日：1988-02-12

    Applicant: Kimitsugu Nakamura ,  Masuo Ito

    Inventor： Kimitsugu Nakamura ,  Masuo Ito

    IPC: H01J43/06 ,  H01J43/28 ,  H01J40/14

    CPC classification number: H01J43/06 ,  H01J43/28

    Abstract: A photomultiplier for converting an incident weak light into multiplied electrons to thereby output an electrical signal corresponding to the intensity of the incidence light. The photomultiplier comprises a photocathode for emitting primary electrons; plural dynodes for emitting secondary electrons in response to incident of the primary electrons and multiplying first secondary electrons passing between the dynodes; and shield means for preventing second secondary electrons emitted from a first dynode of the dynodes toward the photocathode from returning to the dynodes, thereby to reduce the generation of a residual pulse currents caused by the second secondary electrons and to accurately detect a main pulse current caused by the first secondary electrons.

    Abstract translation: 一种用于将入射的弱光转换成倍数电子从而输出对应于入射光强度的电信号的光电倍增管。 光电倍增管包括用于发射一次电子的光电阴极; 多个倍增电极，用于响应于初级电子的入射发射二次电子并且乘以在倍增电极之间通过的第一二次电子; 以及屏蔽装置，用于防止从倍增电极的第一倍增电极发射到光电阴极的第二二次电子返回到倍增极，从而减少由第二二次电子引起的残留脉冲电流的产生，并且精确地检测引起的主脉冲电流 由第一个二次电子。

    Mounting for an output window of an x-ray image intensifier
    142.
    发明授权
    Mounting for an output window of an x-ray image intensifier 失效
    安装X射线图像增强器的输出窗口

    公开(公告)号：US4717860A

    公开(公告)日：1988-01-05

    申请号：US806818

    申请日：1985-12-10

    Applicant: Hermann Christgau ,  Norbert Mika ,  Heinz Roehrich ,  Guenther Scholz

    Inventor： Hermann Christgau ,  Norbert Mika ,  Heinz Roehrich ,  Guenther Scholz

    IPC: H01J31/50 ,  B23K35/24 ,  B23K35/26 ,  H01J5/26 ,  H01J9/26 ,  H01J29/86 ,  H01J43/28 ,  H01J9/40

    CPC classification number: H01J5/26 ,  H01J29/86 ,  H01J9/263

    Abstract: An x-ray image intensifier having a tube bulb and an output window being mounted in a metal frame. The frame is inserted into the tube bulb and attached to the tube bulb in a region of the output window characterized by the output window being a glass window having a luminophor layer applied thereto, the output window being connected to the frame by only a single metal solder connection of soft solder so that the pane having the luminophor layer can be soldered to the frame without damaging the luminophor layer. Preferably, a peripheral edge of the window pane is free of the luminophor layer, and this peripheral edge has at least one adhesive layer deposited at the location for the solder connection.

    Abstract translation: 具有管灯泡和输出窗口的x射线图像增强器安装在金属框架中。 框架被插入管灯泡中并且在输出窗口的区域中附接到管灯泡，其特征在于输出窗口是具有施加到其上的发光体层的玻璃窗，输出窗口仅通过单个金属连接到框架 软焊料的焊接连接，使得具有发光体层的板可以焊接到框架而不损坏发光体层。 优选地，窗玻璃的外围边缘没有发光体层，并且该外围边缘具有沉积在用于焊接连接的位置处的至少一个粘合层。

    Electron discharge device having a ceramic member with means for reducing luminescence therein
    143.
    发明授权
    Electron discharge device having a ceramic member with means for reducing luminescence therein 失效
    具有陶瓷构件的电子放电装置，其具有用于减少发光的装置

    公开(公告)号：US4554481A

    公开(公告)日：1985-11-19

    申请号：US546536

    申请日：1983-10-28

    Applicant: Richard D. Faulkner ,  James L. Rhoads

    Inventor： Richard D. Faulkner ,  James L. Rhoads

    IPC: C04B41/50 ,  C04B41/87 ,  H01J9/24 ,  H01J43/28 ,  H01J31/48

    CPC classification number: C04B41/009 ,  C04B41/5033 ,  C04B41/87 ,  H01J43/28 ,  H01J9/24

    Abstract: An improved electron discharge device comprises an evacuated envelope having at least one alumina ceramic insulator member. Within the device is a source of electrons, and an electron multiplier assembly including an anode. A high resistance material is diffused into the ceramic insulator to reduce luminescence within the insulator. The method of diffusion includes the steps of applying an opaque coating of a high resistance material to a surface of the ceramic insulator member and then firing the member in a reducing atmosphere at a temperature within the range of about 1500.degree. C. to 1550.degree. C. until the high resistance material diffuses into the surface of the member forming a diffusion region.

    Abstract translation: 改进的电子放电装置包括具有至少一个氧化铝陶瓷绝缘体构件的真空外壳。 在器件内部是电子源，以及包括阳极的电子倍增器组件。 高电阻材料扩散到陶瓷绝缘体中以减少绝缘体内的发光。 扩散方法包括以下步骤：将高电阻材料的不透明涂层施加到陶瓷绝缘体构件的表面上，然后在约1500℃至1550℃的温度范围内的还原气氛中焙烧该构件 直到高电阻材料扩散到形成扩散区域的部件的表面中。

    Image display tube having a channel plate electron multiplier
    144.
    发明授权
    Image display tube having a channel plate electron multiplier 失效
    具有通道板电子倍增器的图像显示管

    公开(公告)号：US4511822A

    公开(公告)日：1985-04-16

    申请号：US326867

    申请日：1981-12-03

    Applicant: Derek Washington ,  Roger Pook

    Inventor： Derek Washington ,  Roger Pook

    IPC: H01J29/18 ,  H01J31/12 ,  H01J43/06 ,  H01J31/48 ,  H01J43/28

    CPC classification number: H01J43/06 ,  H01J31/12

    Abstract: The image contrast in an image display tube having a channel plate electron multiplier (2) is improved by preventing secondary electrons emitted from the face of an input dynode (26) from straying to channels located at a relatively large distance from their origin. This is done by disposing a grid (24) at a short distance from the input dynode (26). If the grid (24) is held at a positive voltage relative to the input dynode (26), stray secondary electrons will be attracted toward the grid (24). Alternatively, if the grid (24) is held at a negative voltage relative to that of the input dynode (26), the secondary electrons will be induced to enter channels close to their origin.

    Abstract translation: 具有通道板电子倍增器（2）的图像显示管中的图像对比度通过防止从输入倍增极（26）的面发射的二次电子偏离位于与其原点相对较大距离的通道而被改善。 这通过在与输入的倍增电极（26）短距离处布置网格（24）来完成。 如果电网（24）相对于输入的倍增电极（26）保持在正电压，则杂散二次电子将被吸引到电网（24）。 或者，如果电网（24）相对于输入的倍增电极（26）的电压保持在负电压，则二次电子将被诱导进入接近其原点的通道。

    Image intensifier faceplate
    145.
    发明授权
    Image intensifier faceplate 失效
    图像增强面板

    公开(公告)号：US4393322A

    公开(公告)日：1983-07-12

    申请号：US178317

    申请日：1980-08-15

    Applicant: Walter P. Siegmund

    Inventor： Walter P. Siegmund

    IPC: C03B23/047 ,  H01J29/86 ,  H01J29/89 ,  H01J43/28

    CPC classification number: H01J29/89 ,  C03B23/047 ,  H01J29/86 ,  H01J2229/8913

    Abstract: A glass faceplate having a central area of required useful diameter surrounded by a narrow ring of opaque glass and an outer glass mounting flange. Light entering the flange or ring is prevented from reaching the central area as stray light or glare in the system and spurious reflections at the interface of the ring and central area are minimized by a refractive index match of the two innermost glasses.

    Abstract translation: 一种玻璃面板，其具有由不透明玻璃的窄环围绕的所需有用直径的中心区域和外部玻璃安装凸缘。 进入法兰或环的光作为系统中的杂散光或眩光防止到达中心区域，并且通过两个最内层眼镜的折射率匹配将环和中心区域的界面处的杂散反射最小化。

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