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    Removable discharge initiating means for cold cathode discharge ionization gauge
    91.
    发明授权
    Removable discharge initiating means for cold cathode discharge ionization gauge 失效
    用于冷阴极放电离子电位仪的可拆卸放电启动装置

    公开(公告)号：US5198772A

    公开(公告)日：1993-03-30

    申请号：US843197

    申请日：1992-02-28

    Applicant: Roy N. Peacock ,  Neil T. Peacock

    Inventor： Roy N. Peacock ,  Neil T. Peacock

    IPC: G01L21/34 ,  H01J41/06

    CPC classification number: H01J41/06

    Abstract: A cold cathode gauge including a glow lamp or the like disposed within the vacuum space of the gauge for initiating the gauge discharge, the lamp emitting UV or blue light directly at at least the cathode of the gauge where the energy of the light is sufficient to release photoelectrons from the cathode to thus initiate the discharge. A member is also provided for removably positioning the glow lamp within the vacuum space whereby the lamp can be removed during bake out and then subsequent thereto, be inserted within the vacuum space to thus enhance longevity of the lamp.

    Abstract translation: 一种冷阴极测量仪，包括设置在量规的真空空间内的辉光灯等，用于启动量规放电，该灯直接在光能的阴极处至少发射出紫外线或蓝光，其中光的能量足以 从阴极释放光电子，从而开始放电。 还提供一种用于将真空灯可拆卸地定位在真空空间内的构件，由此在烘烤期间随后可以将灯除去，然后将其插入真空空间内，从而提高灯的寿命。

    Quadrupole ionization gauge
    92.
    发明授权
    Quadrupole ionization gauge 失效
    QUADRUPOLE IONIZATION GAUGE

    公开(公告)号：US3665245A

    公开(公告)日：1972-05-23

    申请号：US3665245D

    申请日：1969-10-27

    Applicant: RESEARCH CORP

    Inventor： SCHWARZ HELMUT J

    IPC: H01J41/06 ,  H01J41/14 ,  G01N27/62

    CPC classification number: H01J41/14 ,  H01J41/06

    Abstract: A non-magnetic ionization gauge or ion pump comprising a tube containing spaced cathodes at the same potential, with an intermediately positioned ring anode for setting up an oscillating stream of electrons that is focused or constrained within an axial path by an electric quadrupole lens arrangement which may be excited by the RF force. The quadrupole lenses create a field which is tuned firstly to lengthen and stabilize the path of the electrons thus causing greater ionization of the gas atoms in the tube, and also to expel the ions produced thereby, which ions are then collected by a cylindrical collector screen at a slightly negative potential surrounding the whole electrode structure. The collector current produced with this arrangement has been found to be approximately inversely proportional to the pressure within the range from 10 5 to 10 10 torr, so that collector currents of the order of microamperes can be obtained at very low pressure levels.

    Ionizing device
    93.
    发明授权
    Ionizing device 失效
    离子装置

    公开(公告)号：US3614512A

    公开(公告)日：1971-10-19

    申请号：US3614512D

    申请日：1969-04-14

    Applicant: PHILIPS CORP

    Inventor： EVRARD ROBERT

    IPC: H01J41/06 ,  H01J27/00

    CPC classification number: H01J41/06

    Abstract: Ion source for use in an ion pump or other apparatus, comprising a secondary-emissive cylinder accommodating a grid. A highfrequency voltage is applied between these two electrodes so that the transit time of the diametrically moving electrons is one whole period or a multiple thereof.

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