Hybrid photomultiplier tube with high sensitivity
    2.
    发明授权
    Hybrid photomultiplier tube with high sensitivity 失效
    混合光电倍增管,灵敏度高

    公开(公告)号:US5374826A

    公开(公告)日:1994-12-20

    申请号:US91764

    申请日:1993-07-14

    CPC classification number: H01J43/246 G01N23/2273 G01T1/28 H01J43/28

    Abstract: A focused electron/bombarded (FEB) ion detector comprising an MCP, focusing means, and a collection anode disposed in a detector body. The collector anode includes a diode for receiving the focused output electron beam from the MCP. The gain between the input ion current to the MCP and the detector output signal from the diode is on the order of 1-100 million, depending on the device configuration and applied biasing voltages. A hybrid photomultiplier tube includes a photocathode, a photodiode for collecting and multiplying electrons emitted by the photocathode and providing an output signal and electrodes for focusing the electrons on the photodiode. A vacuum envelope encloses a vacuum region between photocathode and the detector. A conductor disposed on or adjacent to a sidewall of the vacuum envelope reduces the effect of electrical charges on the inside wall of the vacuum envelope on the trajectories of the electrons.

    Abstract translation: 聚焦电子/轰击(FEB)离子检测器,包括MCP,聚焦装置和设置在检测器主体中的收集阳极。 集电极阳极包括用于从MCP接收聚焦的输出电子束的二极管。 根据器件配置和施加的偏置电压,MCP输入离子电流与二极管的检测器输出信号之间的增益约为1-100亿。 混合光电倍增管包括光电阴极,用于收集和乘积由光电阴极发射的电子并提供输出信号的光电二极管和用于将电子聚焦在光电二极管上的电极。 真空封套包围光电阴极和检测器之间的真空区域。 设置在真空外壳的侧壁上或与真空外壳的侧壁相邻的导体减小了在电子轨迹上的电荷对真空外壳的内壁的影响。

    Single field emission device
    3.
    发明授权
    Single field emission device 失效
    单场发射装置

    公开(公告)号:US5610471A

    公开(公告)日:1997-03-11

    申请号:US409479

    申请日:1995-03-22

    Abstract: A field emission device (100) uses single crystals in order to eliminate grain boundaries within some or all of the electrodes (103, 104, and 205). The elimination of grain boundaries reduces susceptibility to damage, improves stability of the device (100), and improves uniformity and reproducibility among devices. In a preferred embodiment, the emitter and gate electrodes (103 and 104 respectively) are formed from a single crystal thin film (302). In other embodiments, other structures are employed wherein one or more of the electrodes (103, 104, and 205) are formed from single crystals.

    Abstract translation: 场发射器件(100)使用单晶以消除部分或全部电极(103,104和205)内的晶界。 消除晶界降低了损伤的易感性,提高了器件的稳定性(100),并提高了器件之间的均匀性和再现性。 在优选实施例中,发射极和栅电极(103和104分别)由单晶薄膜(302)形成。 在其他实施例中,采用其中一个或多个电极(103,104和205)由单晶形成的其它结构。

    Hybrid photomultiplier tube with ion deflector
    4.
    发明授权
    Hybrid photomultiplier tube with ion deflector 失效
    带离子导流板的混合光电倍增管

    公开(公告)号:US5475227A

    公开(公告)日:1995-12-12

    申请号:US345246

    申请日:1994-11-28

    Applicant: Ross A. LaRue

    Inventor: Ross A. LaRue

    CPC classification number: G01N23/2273 G01T1/28 H01J43/24 H01J43/28

    Abstract: A focused electron/bombarded hybrid photomultiplier tube comprising a photocathode, focusing electrodes, and a collection anode disposed in a detector body. The collector anode includes a diode for receiving the focused output electron beam from the photocathode. The current gain between the photocathode output current and the detector output signal from the diode is over 1000 at a tube operating voltage of 7 kV. The noise factor has been determined to be 1.1. A hybrid photomultiplier tube includes a photocathode, a photodiode for collecting and multiplying electrons emitted by the photocathode and providing an output signal and electrodes for focusing the electrons on the photodiode. A vacuum envelope encloses a vacuum region between photocathode and the detector. A conductor disposed on or adjacent to a sidewall of the vacuum envelope reduces the effect of electrical charges on the inside wall of the vacuum envelope on the trajectories of the electrons. An ion deflector electrode is disposed adjacent to the photodiode anode and extends photocathode operational life and improves noise factor.

    Abstract translation: 一种聚焦电子/轰击的混合光电倍增管,其包括设置在检测器主体中的光电阴极,聚焦电极和收集阳极。 集电极阳极包括用于接收来自光电阴极的聚焦输出电子束的二极管。 在7kV的管工作电压下,光电阴极输出电流与来自二极管的检测器输出信号之间的电流增益超过1000。 噪声因子已确定为1.1。 混合光电倍增管包括光电阴极,用于收集和乘积由光电阴极发射的电子并提供输出信号的光电二极管和用于将电子聚焦在光电二极管上的电极。 真空封套包围光电阴极和检测器之间的真空区域。 设置在真空外壳的侧壁上或与真空外壳的侧壁相邻的导体减小了在电子轨迹上的电荷对真空外壳的内壁的影响。 离子偏转器电极设置在光电二极管阳极附近并延长光电阴极的使用寿命并改善噪声因子。

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