Photomultiplier tube having an improved centering and cathode contacting
structure
    41.
    发明授权
    Photomultiplier tube having an improved centering and cathode contacting structure 失效
    具有改进的定心和阴极接触结构的光电倍增管

    公开(公告)号:US4575657A

    公开(公告)日:1986-03-11

    申请号:US611958

    申请日:1984-05-18

    Inventor: Donald B. Kaiser

    CPC classification number: H01J43/06

    Abstract: A photomultiplier tube comprises an evacuated envelope including a faceplate and a sidewall. A conductive coating is disposed annularly around an interior portion of the sidewall adjacent to the faceplate and on a longitudinally extending portion of the sidewall as a strip. A photoemissive cathode is disposed on an interior surface of the faceplate and on the conductive coating adjacent thereto. A shield cup is spaced from the cathode and centered within the envelope by a plurality of bulb spacers. An electron multiplier cage assembly abuts the shield cup and is attached thereto. A cathode contact assembly is in contact with the strip on the sidewall. A plurality of locating slots are formed in the base of the shield cup to orient the bulb spacers in contact with the sidewall of the envelope and spaced from the longitudinally extending strip portion of the conductive coating thereon. The bulb spacers include stop shoulders which retain the bulb spacers within the locating slots. The cathode contact assembly includes a cathode contact support member and a resilient cathode contact member. The cathode contact support member includes an electrical contact tab struck from the body thereof and a cathode support tab which includes an extruded area to circumferentially locate the resilient cathode contact member between two consecutively spaced bulb spacers and to align the resilient cathode contact member with the longitudinally extending strip portion of the conductive coating on the sidewall of the envelope.

    Abstract translation: 光电倍增管包括包括面板和侧壁的真空外壳。 导电涂层围绕邻近面板的侧壁的内部环形地设置在侧壁的纵向延伸部分上,作为条带。 发光阴极设置在面板的内表面和与其相邻的导电涂层上。 屏蔽杯与阴极隔开并且通过多个灯泡间隔件在封套内居中。 电子倍增器笼组件邻接屏蔽杯并与其连接。 阴极接触组件与侧壁上的条接触。 多个定位槽形成在屏蔽杯的底部中,以使灯泡间隔件与封套的侧壁接触,并与其上的导电涂层的纵向延伸的带状部分隔开。 灯泡间隔件包括在定位槽内保持灯泡间隔件的止动肩。 阴极接触组件包括阴极接触支撑构件和弹性阴极接触构件。 阴极接触支撑构件包括从其主体撞击的电接触突片和阴极支撑突片,阴极支撑突片包括挤压区域,以将弹性阴极接触构件周向地定位在两个连续间隔开的灯泡间隔件之间并使弹性阴极接触构件与纵向对准 在封套的侧壁上的导电涂层的延伸带部分。

    Photomultiplier tube having an electron multiplier cage assembly with
uniform transverse spacing
    42.
    发明授权
    Photomultiplier tube having an electron multiplier cage assembly with uniform transverse spacing 失效
    具有具有均匀横向间隔的电子倍增器笼组件的光电倍增管

    公开(公告)号:US4570102A

    公开(公告)日:1986-02-11

    申请号:US611753

    申请日:1984-05-18

    CPC classification number: H01J43/06

    Abstract: A photomultiplier tube comprises an evacuated envelope having a photoemissive cathode, a shield cup spaced from the cathode and an electron multiplier cage assembly abutting the shield cup. The cage assembly includes a pair of transversely spaced support plates having a plurality of support slots formed therethrough. Each of the support plates has a distal end and a proximal end, with the proximal ends being attached to the shield cup. A light shield is disposed between the distal end of the support plates. An anode and a plurality of dynodes, at least one of which has a field mesh attached thereto, are disposed between the support plates and attached thereto by end tabs. The end tabs extend from the side of the anode and the dynodes. The aforementioned shield cup includes flaps which establish a minimum transverse spacing between the proximal ends of the support plates. The light shield has a transverse dimension substantially equal to that of the flaps to establish a minimum transverse spacing between the distal end of the support plates. The flaps and the light shield thus act, in combination, to provide a uniform minimum transverse spacing between the support plates which is greater than the transverse dimension of the anode and the dynodes to prevent distortion of the field mesh. The tab ends of the dynode and the anode are bifurcated so that one portion of selected ones of the tab ends can be formed to secure the dynodes and the anode between the support plates.

    Abstract translation: 光电倍增管包括具有光发射阴极的抽空外壳,与阴极间隔开的屏蔽杯和邻接屏蔽杯的电子倍增器保持架组件。 笼式组件包括一对横向间隔的支撑板,其具有穿过其形成的多个支撑槽。 每个支撑板具有远端和近端,其近端附接到屏蔽杯。 遮光板设置在支撑板的远端之间。 阳极和多个倍增极,其中至少一个具有连接到其上的场网,设置在支撑板之间并通过端部突片附接到其上。 端部突片从阳极侧面和倍增极延伸。 上述屏蔽杯包括在支撑板的近端之间建立最小横向间隔的襟翼。 遮光罩的横向尺寸基本上等于翼片的横向尺寸,以确定支撑板的远端之间的最小横向间距。 因此,翼片和遮光罩组合起来以提供支撑板之间的均匀的最小横向间隔,其大于阳极和倍增电极的横向尺寸,以防止场网格的变形。 倍增极和阳极的突出端分叉,使得可以形成一些选定的突片端部,以将倍增极和阳极固定在支撑板之间。

    Multi-channel photomultiplier tube
    43.
    发明授权
    Multi-channel photomultiplier tube 失效
    多通道光电管

    公开(公告)号:US3668388A

    公开(公告)日:1972-06-06

    申请号:US3668388D

    申请日:1971-02-24

    CPC classification number: H01J43/06

    Abstract: The improved photomultiplier tube utilizes a multi-channel structure within a common envelope. A photocathode and a plurality of dynode members each have barrier means associated therewith to effect a plurality of related-area elements on each member providing a plurality of separate photomultiplier channel areas thereon. The anode structure has a separate anode element for each individual channel with a separate electrical connection extending therefrom. The photocathode and the separate dynode members each have individual electrical connections which are common to the related channel areas respectively formed thereon.

    Abstract translation: 改进的光电倍增管利用公共信封内的多通道结构。 光电阴极和多个倍增极部件各自具有与其相关联的阻挡装置,以在其上提供多个分离的光电倍增管通道区域的每个部件上实现多个相关区域元件。 阳极结构具有用于每个单独通道的单独的阳极元件,其具有从其延伸的单独的电连接。 光电阴极和单独的倍增管部件各自具有分别形成在其上的相关通道区域共有的各个电连接。

    Electron-multiplier-ionizer mass spectrometer
    44.
    发明授权
    Electron-multiplier-ionizer mass spectrometer 失效
    电子离子离子质谱仪

    公开(公告)号:US3663810A

    公开(公告)日:1972-05-16

    申请号:US3663810D

    申请日:1969-02-14

    Inventor: CONE DONALD R

    CPC classification number: H01J43/06 H01J49/34

    Abstract: An electron multiplier used together with additional elements to form a simple spectrometer for mass distribution studies. The multiplier is used to multiply a few electrons to provide an electron cascade at the multiplier output end which provides a trigger pulse, serving as a time reference and to ionize molecules at the output end. The multiplier serves as a path for positive ions which accelerate towards the multiplier''s input end, whereat they collide with a surface to produce secondary electrons, which are then multiplied by the multiplier as they accelerate to the output end to provide output pulses, whose time displacements from the trigger are indicative of the mass to charge ratio of the created ions.

    Abstract translation: 电子倍增器与附加元素一起使用,以形成用于质量分布研究的简单光谱仪。 乘法器用于乘以几个电子以在乘法器输出端提供电子级联,其提供触发脉冲,用作时间参考并在输出端离子化分子。 乘法器作为正离子的路径,其朝向乘数的输入端加速,在那里它们与表面碰撞以产生二次电子,然后在它们加速到输出端时乘以乘法器以提供输出脉冲,其时间位移 从触发器指示所产生的离子的质荷比。

    PHOTOMULTIPLIER TUBE
    48.
    发明申请
    PHOTOMULTIPLIER TUBE 有权
    光电管

    公开(公告)号:US20120091889A1

    公开(公告)日:2012-04-19

    申请号:US12904641

    申请日:2010-10-14

    CPC classification number: H01J43/06 H01J43/22

    Abstract: The photomultiplier tube 1 is provided with an upper frame 2 and a lower frame 4 which are arranged so as to oppose each other, with the respective opposing surfaces 20a, 40a made with an insulating material, a side wall part 3 which constitutes a casing together with the frames 2, 4, a plurality of stages of electron multiplying parts 33 which are arrayed so as to be spaced away sequentially from a first end side to a second end side on the opposing surface 40a of the lower frame 4, a photocathode 41 which is installed on the first end side so as to be spaced away from the electron multiplying parts 33, converting incident light from outside to photoelectrons, an anode part 34 which is installed on the second end side so as to be spaced away from the electron multiplying parts 33 to take out electrons multiplied by the electron multiplying parts 33 as a signal, and a wall-like electrode 32 which is arranged so as to enclose the photocathode 41 when viewed from a direction directly opposite to an opposing surface 401 and having a notched part 35 at a site opposing the electron multiplying parts 33 on the second end side.

    Abstract translation: 光电倍增管1设置有彼此相对布置的上框架2和下框架4,其中由绝缘材料制成的相应的相对表面20a,40a,构成壳体的侧壁部分3 框架2,4具有多个电子倍增部件33,它们被排列成从下框架4的相对表面40a上的第一端侧到第二端侧依次分开,光电阴极41 其安装在第一端侧以与电子倍增部33隔开,将入射光从外部转换成光电子;阳极部34,安装在第二端侧以与电子间隔开 乘以部分33以电子倍增部分33为乘数乘以电子信号;以及壁状电极32,其从直接对向的方向观察时被包围光电阴极41 在相对的表面401处,并且在与第二端侧的电子倍增部33相对的位置处具有切口部35。

    Lens device for introducing a second ion beam into a primary ion path
    49.
    发明授权
    Lens device for introducing a second ion beam into a primary ion path 有权
    用于将第二离子束引入主离子路径的透镜装置

    公开(公告)号:US07372042B2

    公开(公告)日:2008-05-13

    申请号:US11217248

    申请日:2005-08-31

    CPC classification number: H01J49/04 H01J43/06 H01J49/10

    Abstract: The invention provides a device for introducing ions into the primary ion path of a mass spectrometry system. In general, the device contains an electrical lens having a primary ion passageway and a secondary ion passageway that merges with the primary ion passageway. In certain embodiments, the electrical lens contains a first part and a second part that, together, form the primary ion passageway. The first part of the lens may contain the secondary ion passageway.

    Abstract translation: 本发明提供了一种用于将离子引入质谱系统的一次离子路径的装置。 通常,该装置包含具有主离子通道和与主离子通道并入的次级离子通道的电透镜。 在某些实施例中,电透镜包含一起形成主离子通道的第一部分和第二部分。 透镜的第一部分可以包含二次离子通道。

    Photomultiplier
    50.
    发明授权

    公开(公告)号:US06794629B2

    公开(公告)日:2004-09-21

    申请号:US10468826

    申请日:2003-08-25

    CPC classification number: H01J43/28 H01J43/045 H01J43/06 H01J43/18 H01J43/22

    Abstract: A photomultiplier eliminates the reflection of light off of focusing pieces in a focusing electrode and prevents the photocathode from emitting useless electrons in response to such reflected light by including an oxide film formed over the surface of each focusing piece. The oxide film is also formed on the surface of secondary electron emission pieces in the first and second stage dynodes to eliminate the reflection of light off of the secondary electron emission pieces and to prevent the photocathode from emitting useless electrons in response to such reflected light. Further, a light-absorbing glass partitioning part is provided in a light-receiving faceplate to suppress crosstalk between channels.

Patent Agency Ranking