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    Electrical interference reducer for gating apparatus of an electro multiplier
    1.
    发明授权
    Electrical interference reducer for gating apparatus of an electro multiplier 失效
    用于电动机的加热装置的电气干扰减速器

    公开(公告)号：US3644775A

    公开(公告)日：1972-02-22

    申请号：US3644775D

    申请日：1969-11-07

    Applicant: BENDIX CORP

    Inventor： DAMOTH DONALD C ,  SHRINER WILLIAM H

    IPC: H01J43/12 ,  H01J49/02 ,  H01J1/00

    CPC classification number: H01J43/12 ,  H01J49/025

    Abstract: An apparatus for eliminating noise at the oscilloscope output of a magnetic electron multiplier by arranging the output anodes of the gating section so that the oscilloscope output anode is located on a different axis than the other output anodes and is protected from electromagnetic interference by a shield located between the oscilloscope anode and the other output anodes. The oscilloscope anode is preferably cup-shaped to prevent the escape of electrons impinging the anode.

    Mass spectrometer having means compensating electron transit time across the cathode of the electron multiplier
    4.
    发明授权
    Mass spectrometer having means compensating electron transit time across the cathode of the electron multiplier 失效
    具有电子倍增器阴极电子传输时间的手段的质谱仪

    公开(公告)号：US3660654A

    公开(公告)日：1972-05-02

    申请号：US3660654D

    申请日：1969-09-15

    Applicant: BENDIX CORP

    Inventor： DAMOTH DONALD C ,  SHRINER WILLIAM H

    IPC: H01J49/02 ,  H01J49/26 ,  H01J49/40 ,  H01J39/34

    CPC classification number: H01J49/40 ,  H01J49/025

    Abstract: To improve the resolution of a mass spectrometer the emissive surface of the cathode for the electron multiplier is precisely angled with respect to the plane perpendicular to the axis of the ion focusing tube so that all ions of the same mass which pass through that plane at the same time impinge on those portions of the cathode surface closest to and farthest from the dynode cause electrons secondarily emitted therefrom to impinge upon the dynode at substantially the same time. This shortens the duration of the mass spectrum signals making it easier to distinguish one mass-spectrum line from another in the 200-500 amu range.

    Abstract translation: 为了提高质谱仪的分辨率，电子倍增器的阴极的发射表面相对于垂直于离子聚焦管的轴线的平面精确成角度，使得具有相同质量的所有离子通过该平面在 同时撞击最靠近并且距离倍增极最远的阴极表面的那些部分，导致二次发射的电子在基本相同的时间撞击在倍增极上。 这缩短了质谱信号的持续时间，使得在200-500 amu范围内更容易区分一个质谱线与另一个质谱线。

    9.
    发明专利
    未知

    公开(公告)号：DE1190587B

    公开(公告)日：1965-04-08

    申请号：DEB0058366

    申请日：1960-06-27

    Applicant: BENDIX CORP

    Inventor： SAARI JOHN M ,  DAMOTH DONALD C ,  WILEY WILLIAM C

    IPC: H01J31/06

    Abstract: 889,850. Electron-beam apparatus. BENDIX CORPORATION. June 17, 1960 [June 29, 1959], No. 21392/60. Class 39(1) An electronic switching arrangement includes an electron multiplier, having a secondarilyemissive surface 46 along which an electron stream is propagated in a cycloidal path of increasing electron density by electric and magnetic fields, the output from which is switched to a selected one of a plurality of target electrodes 62 by selective energization of associated control electrodes 54. The target and control electrodes are distributed lengthwise of an elongated guide rail 50, longitudinally aligned with secondarily-emissive surface 46, the electric field being such that the electron stream is lifted gradually clear of the surface 46 to assume a position parallel to, but spaced from, the guide rail 50. As shown, the electron multiplier includes plates 26, 28 having resistive coatings and terminals 30, 32, 36, 40, 42, 44 to which potentials are applied to generate an inclined electric field. Each target electrode 62 is associated with a plate 60, narrowly coupled thereto, to reduce the influence of potential variations of the control electrodes on the potential of the target electrodes. The control electrodes 54, plates 60 and guide rail 50 may be channel-shaped and the control electrodes may have wires 56 attached thereto. Grounded shielding plates 52, 64 are provided on either side of each target electrode and its related plate 60.

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