Image display tube having a channel plate electron multiplier
    61.
    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

    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。

    Photomultiplier tube having improved count-rate stability
    62.
    发明授权
    Photomultiplier tube having improved count-rate stability 失效
    具有改进的计数率稳定性的光电倍增管

    公开(公告)号:US4446401A

    公开(公告)日:1984-05-01

    申请号:US323287

    申请日:1981-11-20

    CPC classification number: H01J43/06

    Abstract: A photomultiplier tube includes an evacuated envelope having therein a photocathode, an anode and an electron multiplier disposed between the cathode and the anode for propagating and concatenating electrons along a path therebetween. The electron multiplier and the anode are supported by a pair of oppositely-disposed support plates. At least one aperture which extends along at least a portion of the electron path is formed in each plate. A pair of focusing shields may be spaced from the exterior surface of each of the support plates. The focusing shields are disposed adjacent to the apertures in the support plates and extend longitudinally along the electron path to provide a transverse focusing field which prevents substantially all of the electrons from impinging on the interior surface of the support plates.

    Abstract translation: 光电倍增管包括其中具有光电阴极的真空外壳,设置在阴极和阳极之间的阳极和电子倍增器,用于沿着它们之间的路径传播和级联电子。 电子倍增器和阳极由一对相对布置的支撑板支撑。 沿着电子路径的至少一部分延伸的至少一个孔形成在每个板中。 一对聚焦屏蔽件可以与每个支撑板的外表面间隔开。 聚焦屏蔽件邻近支撑板中的孔设置并且沿着电子路径纵向延伸以提供横向聚焦场,其防止基本上所有电子撞击在支撑板的内表面上。

    Electron discharge device having a high speed cage
    63.
    发明授权
    Electron discharge device having a high speed cage 失效
    电子放电装置具有高速笼

    公开(公告)号:US4431943A

    公开(公告)日:1984-02-14

    申请号:US311279

    申请日:1981-10-14

    CPC classification number: H01J43/06

    Abstract: A photomultiplier tube comprises an evacuated envelope having therein a photocathode, an anode and a high speed electron multiplier. The electron multiplier includes a primary dynode having a substantially parallel electron permeable member spaced from the primary dynode and disposed between the photocathode and the primary dynode. The electron permeable member also extends between the primary dynode and a plurality of secondary dynodes and accelerates secondary electrons from the primary dynode towards an input secondary dynode. Steering means disposed between the electron permeable member and the secondary dynodes direct the secondary electrons toward the input secondary dynode. Optional electron permeable second members, spaced from and disposed parallel to the secondary dynodes are operated at a potential midway between the adjacent dynode and the next succeeding dynode to accelerate the secondary electrons towards the anode.

    Abstract translation: 光电倍增管包括其中具有光电阴极,阳极和高速电子倍增器的真空外壳。 电子倍增器包括具有与主要倍增电极间隔开并且设置在光电阴极和主要倍增极之间的基本平行的电子可渗透构件的主要倍增管。 电子可渗透构件还在主倍增极和多个次级倍增电极之间延伸,并且将二次电子从主要倍增极加速到输入次级倍增极。 设置在电子可渗透构件和次级倍增极之间的转向装置将二次电子引向输入次级倍增极。 与次级倍增电极平行的间隔开并与之配置的可选择的电子可渗透的第二构件在相邻的倍增电极和下一个随后的倍增电极之间的中间位置处运行,以加速次级电子朝向阳极。

    Light detector having wedge-shaped photocathode and accelerating grid structure
    65.
    发明授权
    Light detector having wedge-shaped photocathode and accelerating grid structure 失效
    具有楔形光栅和光栅结构的光检测器

    公开(公告)号:US3688145A

    公开(公告)日:1972-08-29

    申请号:US3688145D

    申请日:1970-10-08

    Applicant: DONALD K COLES

    Inventor: COLES DONALD K

    CPC classification number: H01J5/16 H01J40/06 H01J43/06

    Abstract: The faceplate of a light detector tube is provided with an internal photocathode having wedge-shaped projections and external lenses to concentrate the light from a source onto the projecting photosensitive surface areas. An accelerating grid having a corresponding configuration is spaced closely to the photocathode to increase the emission of electrons from the photosensitive surface. A potential source establishes an electric field between the photocathode and an anode, with the anode collecting the electrons.

    Abstract translation: 光检测管的面板设置有具有楔形突起和外部透镜的内部光电阴极,以将来自源的光集中到突出的感光表面区域上。 具有相应构造的加速栅格与光电阴极紧密地间隔开,以增加从感光表面发射的电子。 电势源在光电阴极和阳极之间建立电场,阳极收集电子。

    GEM SYSTEM, APPARATUS, AND METHOD FOR TRACKING COSMIC RAY MUONS

    公开(公告)号:US20230324571A1

    公开(公告)日:2023-10-12

    申请号:US18306180

    申请日:2023-04-24

    CPC classification number: G01T1/2935 G01T1/2985 H01J43/06

    Abstract: A gas electron multiplier (GEM), used to track cosmic ray muons, can have readout electrodes oriented in a helical pattern so that it can fit inside a narrow aperture borehole. The helical orientation of the readout electrodes provides for high spatial resolution and yet is cost effective to manufacture. The GEM can have an insulation layer, a plurality of conduction layers and an inner layer comprising a plurality of helical conductive stripes extending between two ends of the GEM.

    Vacuum photosensor device with electron lensing
    69.
    发明授权
    Vacuum photosensor device with electron lensing 有权
    具有电子透镜的真空光电传感器

    公开(公告)号:US09064678B2

    公开(公告)日:2015-06-23

    申请号:US13660837

    申请日:2012-10-25

    Inventor: Daniel Ferenc

    CPC classification number: H01J43/06 H01J40/16 H01J43/00

    Abstract: A scalable vacuum photosensor configured to simplify mass production with a housing having an evacuated first side at an ultrahigh vacuum and a second side which does not require high vacuum. The first side of the device is sealed to a base plate, having a central electron readout element, using an oxide-free sealing technique, with the deposited sealing areas serving as high voltage throughputs from the first to second sides. A conductive photocathode layer on the transparent first side converts photons to photoelectrons and concentrates the photoelectrons upon the readout. The first and second sides together form an electrostatic lens for accelerating and focusing photoelectrons upon the readout, preferably having a scintillator which generates secondary light measured by an optical detector in the second side of the housing.

    Abstract translation: 一种可缩放的真空光电传感器,其被配置为通过具有在超高真空下的抽真空的第一侧的壳体和不需要高真空的第二侧来简化批量生产。 该装置的第一侧被密封到具有中央电子读出元件的基板,使用无氧化物密封技术,沉积的密封区域用作从第一至第二侧的高电压通过量。 透明第一面上的导电光电阴极层将光子转换为光电子,并将光电子集中在读出中。 第一和第二面一起形成用于在读出时加速和聚焦光电子的静电透镜,优选地具有产生由壳体的第二侧中的光学检测器测量的二次光的闪烁体。

    Charged particle detectors
    70.
    发明授权
    Charged particle detectors 有权
    带电粒子探测器

    公开(公告)号:US09000396B2

    公开(公告)日:2015-04-07

    申请号:US13277658

    申请日:2011-10-20

    Abstract: Disclosed are devices, systems, and methods are disclosed that include: (a) a first material layer positioned on a first surface of a support structure and configured to generate secondary electrons in response to incident charged particles that strike the first layer, the first layer including an aperture configured to permit a portion of the incident charged particles to pass through the aperture; and (b) a second material layer positioned on a second surface of the support structure and separated from the first layer by a distance of 0.5 cm or more, the second layer being configured to generate secondary electrons in response to charged particles that pass through the aperture and strike the second layer, where the device is a charged particle detector.

    Abstract translation: 公开了包括以下的装置,系统和方法:(a)第一材料层,其位于支撑结构的第一表面上并被配置为响应于撞击第一层的入射带电粒子产生二次电子,第一层 包括被配置为允许所述入射带电粒子的一部分通过所述孔的孔; 和(b)第二材料层,其位于所述支撑结构的第二表面上并且与所述第一层分离0.5cm或更大的距离,所述第二层被配置为响应于穿过所述第一层的带电粒子而产生二次电子 孔并撞击第二层,其中装置是带电粒子检测器。

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