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    Micromachined mass spectrometer
    121.
    发明授权
    Micromachined mass spectrometer 失效

    公开(公告)号：US5541408A

    公开(公告)日：1996-07-30

    申请号：US390493

    申请日：1995-02-17

    Applicant: Fred C. Sittler

    Inventor： Fred C. Sittler

    IPC: H01J27/26 ,  H01J49/16 ,  H01J49/28 ,  B01D59/44 ,  H01J49/00

    CPC classification number: H01J49/168 ,  H01J27/26 ,  H01J49/0018 ,  H01J49/288

    Abstract: A micromachined mass spectrometer includes an ionizer, a separation region and a detector. The ionizer is formed from an upper electrode, a center electrode and a lower electrode. Ionization of a sample gas takes place around an edge of the center electrode. Accelerating electrodes extract ionized particles from the ionizer. Ionized particles are accelerated through the separation region. A magnetic field is applied in a direction perpendicular to travel of the ionized particles through the separation region causing the trajectory of the ionized particles to bend. The mass spectrometer is formed using micromachined techniques and is carried on a single substrate.

    Miniaturized mass filter
    122.
    发明授权
    Miniaturized mass filter 失效
    小型化质量过滤器

    公开(公告)号：US5536939A

    公开(公告)日：1996-07-16

    申请号：US320474

    申请日：1994-10-07

    Applicant: Carl B. Freidhoff ,  Robert M. Young

    Inventor： Carl B. Freidhoff ,  Robert M. Young

    IPC: H01J49/28 ,  B01D59/44 ,  H01J49/00

    CPC classification number: H01J49/0018 ,  H01J49/288

    Abstract: A mass filter is provided for use in a solid state mass spectrograph for analyzing a sample of gas. The mass filter is located in a cavity provided in a semiconductor substrate. The mass filter generates an electromagnetic field in the cavity which filters by mass/charge ratio an ionized portion of the sample of gas. The substrate has an inlet through which the gas to be analyzed flows through prior to reaching the mass filter. The mass filter can be either a single-focussing Wien filter or magnetic sector filter or can be a double-focussing filter which uses both an electric field and a magnetic field to separate the ions.

    Abstract translation: 提供了用于分析气体样品的固态质谱仪中使用的质量过滤器。 质量过滤器位于设置在半导体衬底中的空腔中。 质量过滤器在空腔中产生电磁场，其通过质量/电荷比率将气体样品的电离部分过滤。 衬底具有入口，待分析的气体在到达质量过滤器之前流过。 质量过滤器可以是单聚焦维恩滤波器或磁性扇形滤波器，或者可以是使用电场和磁场来分离离子的双重聚焦滤波器。

    Mass spectrometer
    125.
    发明授权
    Mass spectrometer 失效
    质谱仪

    公开(公告)号：US4078176A

    公开(公告)日：1978-03-07

    申请号：US670834

    申请日：1976-03-26

    Applicant: Hisashi Matsuda

    Inventor： Hisashi Matsuda

    IPC: H01J49/28 ,  G01N27/62 ,  H01J49/32 ,  B01D59/44 ,  H01J39/34

    CPC classification number: H01J49/32

    Abstract: The molecules of a sample are ionized and the produced ions are subjected to a dispersion according to their kinetic energies in an electrostatic field and then to a dispersion according to their mass numbers in a magnetic field. Of the mass-dispersed ions, some having a specific mass number are focussed by means of a lens system disposed between the electrostatic and magnetic fields and the focussed ions are detected by an ion detector.

    Abstract translation: 将样品的分子离子化，并且根据其在静电场中的动能然后根据其在磁场中的质量数分散到所产生的离子进行分散。 在质量分散离子中，一些具有特定质量数的物质通过设置在静电场和磁场之间的透镜系统聚焦，并且聚焦离子由离子检测器检测。

    Method and apparatus for separating laser ionized particles from background ions
    126.
    发明授权
    Method and apparatus for separating laser ionized particles from background ions 失效
    用于从背景离子分离激光离子化颗粒的方法和装置

    公开(公告)号：US3935451A

    公开(公告)日：1976-01-27

    申请号：US395021

    申请日：1973-09-07

    Applicant: George Sargent Janes

    Inventor： George Sargent Janes

    IPC: B01D59/34 ,  B01D59/50 ,  H01J49/28 ,  H05H1/00 ,  H01J39/34

    CPC classification number: H01J49/288 ,  B01D59/34 ,  B01D59/50 ,  H05H1/00

    Abstract: Method and apparatus for separating selectively ionized particles of one isotope type from the background environment of charged and neutral particles. In particular, a particle flow is generated which contains neutral particles of plural isotope types, as well as a number of ions of the various isotope types. It is desired to selectively ionize and separately collect only those particles of one isotope type and for this purpose, an acceleration is produced in the ions of the background environment prior to selective ionization of the desired isotope particles. After selective ionization, a further acceleration, in an opposite direction, is produced upon the charged particles which results in a deflection of the selectively ionized particles towards collection surfaces and restores to generally normal flow velocity and charge distribution, the ions from the background environment.

    Abstract translation: 选择性地从带电和中性粒子的背景环境中分离出一种同位素型离子化颗粒的方法和装置。 特别地，产生含有多个同位素类型的中性粒子以及各种同位素类型的多个离子的粒子流。 期望选择性地离子化并且仅分别收集一种同位素型的那些颗粒，并且为此目的，在所需同位素颗粒的选择性电离之前，在背景环境的离子中产生加速。 在选择性电离之后，在带电粒子上产生相反方向的进一步的加速，这导致选择性离子化的颗粒向收集表面的偏转并且恢复到大体正常的流速和电荷分布，来自背景环境的离子。

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