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    Nuclear radiation monitoring device wherein a detector, a remote source and a measuring device are connected by a single cable
    1.
    发明授权
    Nuclear radiation monitoring device wherein a detector, a remote source and a measuring device are connected by a single cable 失效
    检测器，远程源和测量装置的核辐射监测装置由单根电缆连接

    公开(公告)号：US3657540A

    公开(公告)日：1972-04-18

    申请号：US3657540D

    申请日：1969-10-03

    Applicant: INT STANDARD ELECTRIC CORP

    Inventor： MAILLOT JEAN-PAUL

    IPC: G01T1/18 ,  H01J39/10

    CPC classification number: G01T1/18

    Abstract: A nuclear radiation monitoring device wherein a detector and a remote source and measuring device are coupled by a single coaxial cable via a resistor. The detector includes a GeigerMuller counter tube, a low-to-high D.C. voltage converter, a pulse shaper and a monostable pulse repeater. The remote source supplies a low D.C. voltage which is converted to a high D.C. voltage for use by the detector. Signal pulses from the detector reach the remote measuring device substantially without alteration due to the aforementioned resistor which is chosen to have an impedance equal to the characteristic impedance of the coaxial cable.

    Abstract translation: 核辐射监测装置，其中检测器和远程源和测量装置通过电阻器通过单个同轴电缆耦合。 检测器包括Geiger-Muller计数管，低至高直流电压转换器，脉冲整形器和单稳态脉冲中继器。 远程电源提供低直流电压，其被转换为高的直流电压以供检测器使用。 来自检测器的信号脉冲基本上没有变化地到达远程测量装置，因为上述电阻被选择为具有等于同轴电缆的特性阻抗的阻抗。

    Oblique streak tube
    2.
    发明授权
    Oblique streak tube 失效
    斜条管

    公开(公告)号：US4163174A

    公开(公告)日：1979-07-31

    申请号：US805955

    申请日：1977-06-13

    Applicant: Charles B. Johnson

    Inventor： Charles B. Johnson

    IPC: H01J31/08 ,  H01J31/50 ,  H01J40/04 ,  H01J40/16 ,  H01J39/07 ,  H01J39/10

    CPC classification number: H01J40/04 ,  H01J31/08 ,  H01J31/502 ,  H01J40/16

    Abstract: At one of the vacuum tube is disposed an opaque photocathode receiving light from a window in the other end of the tube along a light axis which is spaced from and parallel to the axis of the tube. An accelerating mesh adjacent the photocathode rapidly accelerates the light produced photoelectrons in cooperation with an oblique electron lens along a path having an angle which is oblique to the light axis and tube axis toward a target or readout device. A field mesh adjacent the readout device accelerates the photoelectrons after being deflected by deflection plates to the readout device to provide an output photoelectron streak image thereon.

    Abstract translation: 在一个真空管中设置一个不透光的阴极，该光阴极沿着与管的轴线间隔开并平行于光轴的光轴从管的另一端的窗口接收光。 与光电阴极相邻的加速网格沿着具有与光轴和管轴倾斜的角度朝向目标或读出装置的路径的倾斜电子透镜协同地快速加速产生光的光电子。 与读出装置相邻的场网格在被偏转板偏转到读出装置之后加速光电子，以在其上提供输出的光电子条纹图像。

    Image transformer tube with movable phosphor screen
    5.
    发明授权
    Image transformer tube with movable phosphor screen 失效
    具有可移动荧光屏的图像变压器管

    公开(公告)号：US3794874A

    公开(公告)日：1974-02-26

    申请号：US3794874D

    申请日：1972-01-26

    Applicant: OPTISCHE IND DE OUDA DELFT NV

    Inventor： MULDER H ,  HOUTKAMP J

    IPC: C07C45/71 ,  H01J31/50 ,  H01J39/10 ,  H01J39/14

    CPC classification number: C07C45/71 ,  H01J31/501

    Abstract: In an diode image amplifier or image transformer tube a part of the wall of the tube between the anode and cathode window is composed of one or more interconnected metal rings which can elastically be deformed to vary the distance between anode and cathode to avoid the use of a third focusing electrode.

    Abstract translation: 在二极管图像放大器或图像变压器管中，阳极和阴极窗口之间的管壁的一部分由一个或多个互连的金属环组成，其可以弹性变形以改变阳极和阴极之间的距离，以避免使用 第三聚焦电极。

    Optical guiding apparatus with automatic control of beam position
    6.
    发明授权
    Optical guiding apparatus with automatic control of beam position 失效
    光束引导装置，自动控制光束位置

    公开(公告)号：US3558896A

    公开(公告)日：1971-01-26

    申请号：US3558896D

    申请日：1968-08-29

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： DALY JAMES C

    IPC: G02B26/02 ,  H04B10/12 ,  H01J39/07 ,  G01J1/36 ,  H01J39/10

    CPC classification number: G02B26/02

    Abstract: In the optical guiding apparatus disclosed, the optical beam is guided and focused by solid lenses which are automatically positioned with respect to a reference axis established by the sensors. Fixed relative positioning of the sensors permits the movement of the lenses in a small number of discrete steps, each step being substantially equal to a threshold position error of a control loop. In a first embodiment, each sensor controls a plurality of beampositioning lenses collectively to provide the downstream beam position correction. two-position control and three-position control are employed. In second and third embodiments, each sensor effects compensating movements of upstream and downstream lenses to modify the beam position only locally.

    Image intensifier tube
    7.
    发明授权
    Image intensifier tube 失效
    图像增压管

    公开(公告)号：US3889144A

    公开(公告)日：1975-06-10

    申请号：US30872572

    申请日：1972-11-22

    Applicant: ELECTRON PHYSICS LTD

    Inventor： MCGEE JAMES DWYER

    IPC: H01J31/50 ,  H01J39/10 ,  H01J39/02

    CPC classification number: H01J31/503

    Abstract: An image intensifier tube comprising a phosphor screen and a photocathode is provided with a wire mesh adjacent the phosphor screen. This provides an equipotential surface and allows the main part of the focusing of electrons from the photocathode to be carried out in a relatively weak electric field. This leads to a reduction in the length of the tube.

    Abstract translation: 包括荧光屏和光电阴极的图像增强管设置有与荧光屏相邻的丝网。 这提供了等电位表面，并允许来自光电阴极的电子的聚焦主要部分在相对较弱的电场中进行。 这导致管的长度的减小。

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