PHOTOMULTIPLIER FOR WELL-LOGGING TOOL
    21.
    发明申请
    PHOTOMULTIPLIER FOR WELL-LOGGING TOOL 有权
    照相机用于井下工具

    公开(公告)号:US20140263995A1

    公开(公告)日:2014-09-18

    申请号:US13829554

    申请日:2013-03-14

    CPC classification number: H01J43/10 E21B47/102 G01V11/002

    Abstract: A photomultiplier includes a tube and plurality of dynodes within the tube and including at least one first dynode and at least one second dynode. A respective insulator is between adjacent pairs of dynodes. The at least one first dynode includes a conductive outer ring and a medial conductive member coupled to the conductive outer ring in spaced relation therefrom. The at least one second dynode includes a conductive outer ring and a conductive inner ring supported within the conductive outer ring.

    Abstract translation: 光电倍增管包括管和管内的多个倍增电极,并且包括至少一个第一倍增电极和至少一个第二倍增电极。 相应的绝缘体在相邻的倍增电极对之间。 所述至少一个第一倍增电极包括导电外环和与所述导电外环以间隔开的关系连接的中间导电构件。 所述至少一个第二倍增电极包括导电外环和支撑在所述导电外环内的导电内环。

    Cathode for emitting photoelectron or secondary electron, photomultiplier tube, and electron-multiplier tube
    22.
    发明申请
    Cathode for emitting photoelectron or secondary electron, photomultiplier tube, and electron-multiplier tube 失效
    用于发射光电子或二次电子的阴极,光电倍增管和电子倍增管

    公开(公告)号:US20030001497A1

    公开(公告)日:2003-01-02

    申请号:US10181360

    申请日:2002-07-17

    Abstract: A cathode (5) for emitting photoelectrons or secondary electrons comprises a nickel electrode substrate (5c) with an aluminum layer (5b) deposited on it; an intermediate layer (5a) consisting of carbon nanotubes formed on the aluminum layer; and an alkaline metal layer (5d) formed on the intermediate layer (5a) and composed, for example, of particles of an alkali antimony compound that either emits photoelectrons in response to incident light or emits secondary electrons in response to incident electrons. The decrease in defect density of the particles reduces the probability of recombination of electron and hole remarkably, thus increasing quantum efficiency.

    Abstract translation: 用于发射光电子或二次电子的阴极(5)包括沉积有铝层(5b)的镍电极基板(5c) 由形成在所述铝层上的碳纳米管构成的中间层(5a) 以及形成在中间层(5a)上的碱金属层(5d),其由例如响应于入射光发射光电子的碱锑化合物颗粒构成,或者响应入射电子发射二次电子。 颗粒的缺陷密度的降低降低了电子和空穴的显着复合的可能性,从而提高了量子效率。

    Particle multipliers
    24.
    发明授权
    Particle multipliers 失效
    粒子乘数

    公开(公告)号:US3899706A

    公开(公告)日:1975-08-12

    申请号:US31970272

    申请日:1972-12-29

    CPC classification number: H01J43/10

    Abstract: A particle multiplier has a chain of dynodes mounted on two stacks of spacers. Each spacer of one of the stacks is of insulating material with a conductive layer at each end and a conductive strip along one side connecting the layers at the ends. Each dynode is electrically connected to the adjacent end layers of two adjacent spacers. The conductive strips constitute resistors so that each dynode is connected to the junction of two resistors of a chain of resistors in series.

    Abstract translation: 粒子倍增器具有安装在两个间隔物叠层上的倍增电极链。 每个堆叠中的一个的每个间隔物是绝缘材料,在每个端部具有导电层,并且沿着连接两端的端部的一侧的导电条带。 每个倍增电极电连接到两个相邻间隔物的相邻端层。 导电条构成电阻器,使得每个倍增电极连接到串联的电阻链的两个电阻器的结。

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