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    Electron multiplier output electron optics
    11.
    发明授权
    Electron multiplier output electron optics 失效
    电子倍增器输出电子光学

    公开(公告)号：US4149106A

    公开(公告)日：1979-04-10

    申请号：US822670

    申请日：1977-08-08

    Applicant: David A. DE Wolf ,  Carmen A. Catanese

    Inventor： David A. DE Wolf ,  Carmen A. Catanese

    IPC: H01J29/46 ,  H01J31/12 ,  H01J43/18 ,  H01J43/10

    CPC classification number: H01J31/125 ,  H01J29/46 ,  H01J43/18

    Abstract: An electron multiplier is formed between two spaced parallel substrates of electrically conductive material with a cathode at one end of the substrates. On opposed surfaces of the two substrates are dynodes, extraction electrodes, modulation electrodes, electrically conductive protrusions and deflection electrodes in that order going away from the cathode end. The dynodes form a conventional staggered dynode chain. The modulation electrode on one substrate is opposite a modulation electrode on the other substrate and both have a width equal to the distance between the substrates. The protrusions are similarly directly opposite one another. At the end of the substrates remote from the cathode is a deflection electrode on the tip of each substrate.

    Abstract translation: 在两个间隔开的导电材料的平行衬底之间形成电子倍增器，在衬底的一端具有阴极。 在两个基板的相对表面上是倍增极，引出电极，调制电极，导电突起和偏转电极，其顺序远离阴极端。 倍增电极形成常规的交错倍增极链。 一个衬底上的调制电极与另一衬底上的调制电极相对，并且两者的宽度等于衬底之间的距离。 突起类似地彼此直接相对。 在远离阴极的基板的端部是每个基板的尖端上的偏转电极。

    Dynode for a photomultiplier tube
    12.
    发明授权
    Dynode for a photomultiplier tube 失效
    用于光电管的DYNODE

    公开(公告)号：US4143291A

    公开(公告)日：1979-03-06

    申请号：US761911

    申请日：1977-01-24

    Applicant: John J. Morales

    Inventor： John J. Morales

    IPC: H01J43/22 ,  H01J43/10

    CPC classification number: H01J43/22

    Abstract: A dynode has a plurality of circular elements that are planar, concentric and electrically interconnected for decreasing the variation in the number of secondary electrons emitted for each impinging primary electron when the primary electrons impinge from different angular directions.

    Abstract translation: 要求保护聚合物共混物， （A）55-99重量％的共聚亚芳基醚砜基质，其包含（a1）91-97摩尔％的式（I）单元和（a2）3-9摩尔％的式（II）单元; （B）1-45％（重量）由共聚亚芳基醚砜组成的分散相 （b1）91-97摩尔％单元（II）和（b2）3-9摩尔％单元（I），（C）0-40重量％冲击改性橡胶，（D）0-60重量％ 和/或颗粒填料和（E）0-40重量％的加工助剂和/或添加剂。 还声称是（1）产品的过程。 这些混合物通过混合熔体中的组分，和（2）纤维，薄膜，涂层和模制品。 对比 这些混合物，尤其是 炊具。 Pref。 共混物含有60-95重量％（A），5-40重量％（B），0-40重量％（C），0-60重量％（D）和0-40重量％ ）或55-98重量％（A），1-44重量％（B），1-20重量％（C）和0-40重量％（E）。

    Electron multiplier with high energy electron filter
    13.
    发明授权
    Electron multiplier with high energy electron filter 失效
    具有高能电子滤波器的电子倍增器

    公开(公告)号：US4115719A

    公开(公告)日：1978-09-19

    申请号：US729281

    申请日：1976-10-04

    Applicant: Carmen Anthony Catanese ,  James Berkeley Harrison, Jr. ,  Norman Lee Lindburg

    Inventor： Carmen Anthony Catanese ,  James Berkeley Harrison, Jr. ,  Norman Lee Lindburg

    IPC: H01J31/12 ,  H01J43/20 ,  H01J43/10 ,  H01J43/18

    CPC classification number: H01J43/20 ,  H01J31/125

    Abstract: An electron multiplier includes a plurality of staggered parallel dynodes disposed between two insulating vanes. The dynodes are disposed between a cathode at one end and a high energy electron filter at the other end. The electron filter includes at least two staggered filter bodies which extend into the space between the vanes. Each of the filter bodies extends slightly more than one-half the distance between the vanes so as to provide no straight path therethrough for high energy electrons, i.e., the filter is optically opaque. Between the dynodes closest to the cathode and the electron filter is a transition region. The transition region includes transition dynodes, having unequal widths and unequal spacings, and steering electrodes. In multiplier operation, the transition region functions to steer low energy electrons around the electron filter.

    Abstract translation: 电子倍增器包括设置在两个绝缘叶片之间的多个交错的平行倍增电极。 倍增极设置在一端的阴极和另一端的高能电子滤波器之间。 电子过滤器包括延伸到叶片之间的空间中的至少两个交错的过滤体。 每个过滤器体稍微延伸超过叶片之间距离的一半，以便不向高能电子提供贯穿其中的直通路径，即，滤光器是不透光的。 在最接近阴极的倍增极和电子滤波器之间是过渡区。 过渡区域包括具有不等宽度和不等间距的转换倍增电极以及转向电极。 在乘法运算中，过渡区域用于控制电子滤波器周围的低能电子。

    Phototube having domed mesh with non-uniform apertures
    14.
    发明授权
    Phototube having domed mesh with non-uniform apertures 失效
    光电管具有不均匀孔径的网状网眼

    公开(公告)号：US4060747A

    公开(公告)日：1977-11-29

    申请号：US655165

    申请日：1976-02-04

    Applicant: Richard Dale Faulkner

    Inventor： Richard Dale Faulkner

    IPC: H01J43/02 ,  H01J19/38 ,  H01J40/16 ,  H01J43/10 ,  H01J39/00 ,  H01J39/04

    CPC classification number: H01J43/10 ,  H01J19/38 ,  H01J40/16 ,  H01J2893/0015

    Abstract: An electron discharge tube comprises a photocathode, a dynode, a mesh having openings of non-uniform sizes on the dynode, and an anode, all in an evacuated tube. The mesh comprises a plurality of spaced first elongated elements of electrically conducting material and a plurality of spaced second elongated elements of electrically conducting material, intersecting to form openings of non-uniform sizes.

    Abstract translation: 电子放电管包括光电阴极，倍增极，在倍增极上具有不均匀尺寸的开口的网，以及全部在真空管中的阳极。 网状物包括导电材料的多个间隔开的第一细长元件和多个间隔开的导电材料间隔开的第二细长元件，其相交以形成不均匀尺寸的开口。

    Electron multiplier having dynode modules
    15.
    发明授权
    Electron multiplier having dynode modules 失效
    具有DYNODE模块的电子乘法器

    公开(公告)号：US3684910A

    公开(公告)日：1972-08-15

    申请号：US3684910D

    申请日：1970-05-18

    Applicant: ITT

    Inventor： STUTZMAN GUY R ,  COMSTOCK ALLAN J

    IPC: H01J43/20 ,  H01J43/00 ,  H01J43/06 ,  H01J43/10

    CPC classification number: H01J43/20

    Abstract: An electron multiplier construction formed of a plurality of dynode modules. Each module is formed of a a ceramic wafer having two complementary, metal dynode elements attached thereto arranged to direct a stream of electrons through an opening in the wafer and into a dynode element of the next successive module. The modules are secured together in spaced, parallel relationship by metal post elements spaced-apart around the periphery of the wafers, each dynode element being connected to a different one of the post elements.

    Abstract translation: 由多个倍增电极模块形成的电子倍增器结构。 每个模块由具有附接到其上的两个互补的金属倍增极元件的陶瓷晶片形成，其布置成将电子流引导通过晶片中的开口并进入下一个连续模块的倍增电极元件。 模块通过围绕晶片周边间隔开的金属柱元件以间隔的平行关系固定在一起，每个倍增电极元件连接到不同的柱元件。

    PARTICLE DETECTOR HAVING IMPROVED PERFORMANCE AND SERVICE LIFE
    19.
    发明申请
    PARTICLE DETECTOR HAVING IMPROVED PERFORMANCE AND SERVICE LIFE 有权

    公开(公告)号：US20210074531A1

    公开(公告)日：2021-03-11

    申请号：US17040410

    申请日：2019-03-22

    Applicant: ADAPTAS SOLUTIONS PTY LTD

    Inventor： Russell Jurek ,  Kevin Hunter

    IPC: H01J43/18 ,  H01J49/28 ,  H01J43/10 ,  H01J49/02 ,  H01J47/00

    Abstract: The present invention relates to generally to components of scientific analytical equipment. More particularly, the invention relates to ion detectors of the type which incorporate electron multipliers and modifications thereto for extending the operational lifetime or otherwise improving performance. The invention may be embodied in the form of a particle detector having one or more electron emissive surfaces and/or an electron collector surface therein, the particle detector being configured such that in operation the environment about the electron emissive surface(s) and/or the electron collector surface is/are different to the environment immediately external to the detector.

    CALIBRATING ELECTRON MULTIPLIER GAIN USING THE PHOTOELECTRIC EFFECT
    20.
    发明申请
    CALIBRATING ELECTRON MULTIPLIER GAIN USING THE PHOTOELECTRIC EFFECT 审中-公开

    公开(公告)号：US20200020513A1

    公开(公告)日：2020-01-16

    申请号：US16032782

    申请日：2018-07-11

    Applicant: Thermo Finnigan LLC

    Inventor： Joshua T. MAZE ,  Edward B. McCAULEY ,  Scott T. QUARMBY

    IPC: H01J43/16 ,  H01J43/10 ,  H01J49/00 ,  H01J49/02 ,  H01J49/40 ,  H01J49/42

    Abstract: An ion detector includes a first stage dynode configured to receive an ion beam and generate electrons, a photon source arranged to provide photons to the first stage dynode, the photons of sufficient energy to cause the first stage dynode to emit photoelectrons, an electron multiplier configured to receive the electrons or the photoelectrons from the first stage dynode and generate an output proportional to the number of electrons or photoelectrons, and a controller. The controller is configured to receive the output generated in response to the photoelectrons; calculate a gain curve of the detector based on the output; and set a voltage of the electron multiplier or the first stage dynode to achieve a target gain for the ion beam.

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