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29 条记录 (耗时 0.011 秒)

    Quadrupole mass spectrometer driver with higher signal levels
    2.
    发明授权
    Quadrupole mass spectrometer driver with higher signal levels 失效
    具有较高信号电平的四极杆质谱仪驱动器

    公开(公告)号：US06583702B2

    公开(公告)日：2003-06-24

    申请号：US10165252

    申请日：2002-06-05

    申请人： Ara Chutjian ,  Dean Aalami ,  Murray Darrach ,  Otto Orient

    发明人： Ara Chutjian ,  Dean Aalami ,  Murray Darrach ,  Otto Orient

    IPC分类号： H01E2734

    CPC分类号： H02M7/53806

    摘要： Driving a quadrapole mass spectrometer includes obtaining an air core transformer with a primary and a secondary, matching the secondary to the mass spectrometer, and driving the primary based on first and second voltage levels. Driving of the primary is via an isolating stage that minimizes low level drive signal coupling.

    摘要翻译： 驱动四极杆质谱仪包括获得具有初级和次级的空气变压器，与次级质谱仪匹配，并且基于第一和第二电压电平驱动初级。 主要的驱动是通过使低电平驱动信号耦合最小化的隔离级。

    Trochoidal analysis of scattered electrons in a merged electron-ion beam geometry
    3.
    发明授权
    Trochoidal analysis of scattered electrons in a merged electron-ion beam geometry 失效
    在合并的电子 - 离子束几何中的散射电子的卷积分析

    公开(公告)号：US4818868A

    公开(公告)日：1989-04-04

    申请号：US154713

    申请日：1988-02-11

    申请人： Ara Chutjian

    发明人： Ara Chutjian

    IPC分类号： G01T1/29 ,  H01S1/00 ,  G01K1/08 ,  H01J3/14

    CPC分类号： G01T1/29

    摘要： The method and apparatus of this invention provides a plurality of measurements indicative of the absolute cross section for excitation of an ion beam. The ion beam is merged for excitation by specific energies of electrons in an electron beam. Both beams are merged in an evacuated enclosure having a longitudinal magnetic field and a crossed uniform electric field. The ions and electrons interact over a known merged longitudinal length in a merged beam area. After collision, the electron and ion beams are demerged. Forward and backward-scattered electrons are collected and position-detected by a pair of microchannel plate arrays located at opposite ends of the longitudinal beam-merging area. A series of electron and ion primary current measurements are taken at full ion and electron beam strength. Measurements are also taken at greatly reduced beam strength to obtain a beam overlap profile.

    摘要翻译： 本发明的方法和装置提供多个指示离子束激发的绝对横截面的测量结果。 离子束通过电子束中的特定能量的电子被合并以进行激发。 两个梁合并在具有纵向磁场和交叉均匀电场的真空外壳中。 离子和电子在合并光束区域中的已知合并纵向长度上相互作用。 碰撞后，电子和离子束被分流。 通过位于纵向束合并区域的相对端的一对微通道板阵列收集正向和反向散射的电子并进行位置检测。 在全离子和电子束强度下进行一系列电子和离子初级电流测量。 在大大减小的光束强度下也进行测量以获得光束重叠轮廓。

    High-efficiency electron ionizer for a mass spectrometer array
    4.
    发明授权
    High-efficiency electron ionizer for a mass spectrometer array 失效
    用于质谱仪阵列的高效电子离子发生器

    公开(公告)号：US06521898B2

    公开(公告)日：2003-02-18

    申请号：US09903475

    申请日：2001-07-10

    申请人： Ara Chutjian ,  Murray R. Darrach ,  Otto J. Orient

    发明人： Ara Chutjian ,  Murray R. Darrach ,  Otto J. Orient

    IPC分类号： H01J4914

    CPC分类号： H01J49/14

    摘要： The present invention provides an improved electron ionizer for use in a quadrupole mass spectrometer. The improved electron ionizer includes a repeller plate that ejects sample atoms or molecules, an ionizer chamber, a cathode that emits an electron beam into the ionizer chamber, an exit opening for excess electrons to escape, at least one shim plate to collimate said electron beam, extraction apertures, and a plurality of lens elements for focusing the extracted ions onto entrance apertures.

    摘要翻译： 本发明提供一种用于四极质谱仪的改进的电离子发生器。 改进的电子离子发生器包括排出样品原子或分子的排斥板，离子化器室，向电离器室中发射电子束的阴极，用于过量电子逸出的出口，至少一个垫板以准直所述电子束 ，提取孔，以及用于将提取的离子聚焦到入口孔上的多个透镜元件。

    High-efficiency electron ionizer for a mass spectrometer array
    5.
    发明授权
    High-efficiency electron ionizer for a mass spectrometer array 失效
    用于质谱仪阵列的高效电子离子发生器

    公开(公告)号：US06271527B1

    公开(公告)日：2001-08-07

    申请号：US09588991

    申请日：2000-06-06

    申请人： Ara Chutjian ,  Murray R. Darrach ,  Otto J. Orient

    发明人： Ara Chutjian ,  Murray R. Darrach ,  Otto J. Orient

    IPC分类号： H01J4914

    CPC分类号： H01J49/14

    摘要： The present invention provides an improved electron ionizer for use in a quadrupole mass spectrometer. The improved electron ionizer includes a repeller plate that ejects sample atoms or molecules, an ionizer chamber, a cathode that emits an electron beam into the ionizer chamber, an exit opening for excess electrons to escape, at least one shim plate to collimate said electron beam, extraction apertures, and a plurality of lens elements for focusing the extracted ions onto entrance apertures.

    摘要翻译： 本发明提供一种用于四极质谱仪的改进的电离子发生器。 改进的电子离子发生器包括排出样品原子或分子的排斥板，离子化器室，向电离器室中发射电子束的阴极，用于过量电子逸出的出口，至少一个垫板以准直所述电子束 ，提取孔，以及用于将提取的离子聚焦到入口孔上的多个透镜元件。

    Miniature micromachined quadrupole mass spectrometer array and method of making the same
    6.
    发明授权
    Miniature micromachined quadrupole mass spectrometer array and method of making the same 失效
    微型微加工四极杆质谱仪阵列及其制作方法

    公开(公告)号：US06157029A

    公开(公告)日：2000-12-05

    申请号：US89769

    申请日：1998-06-03

    申请人： Ara Chutjian ,  Michael Hecht ,  Otto Orient ,  Dean Wiberg ,  Reid A. Brennen

    发明人： Ara Chutjian ,  Michael Hecht ,  Otto Orient ,  Dean Wiberg ,  Reid A. Brennen

    IPC分类号： H01J49/42

    CPC分类号： H01J49/0018 ,  H01J49/009 ,  H01J49/4215

    摘要： The present invention provides a quadrupole mass spectrometer and an ion filter for use in the quadrupole mass spectrometer. The ion filter includes a thin patterned layer including a two-dimensional array of poles forming one or more quadrupoles. The patterned layer design permits the use of very short poles and with a very dense spacing of the poles, so that the ion filter may be made very small. Also provided is a method for making the ion filter and the quadrupole mass spectrometer. The method involves forming the patterned layer of the ion filter in such a way that as the poles of the patterned layer are formed, they have the relative positioning and alignment for use in a final quadrupole mass spectrometer device.

    摘要翻译： 本发明提供一种用于四极质谱仪中的四极质谱仪和离子过滤器。 离子过滤器包括薄的图案层，其包括形成一个或多个四极的二维阵列阵列。 图案层设计允许使用非常短的极点和极的非常密集的间隔，使得离子过滤器可以非常小。 还提供了制造离子过滤器和四极质谱仪的方法。 该方法包括以这样的方式形成离子过滤器的图案化层，使得当形成图案化层的极时，它们具有用于最终四极杆质谱仪装置中的相对定位和对准。

    Miniature micromachined quadrupole mass spectrometer array and method of making the same
    9.
    发明授权
    Miniature micromachined quadrupole mass spectrometer array and method of making the same 失效
    微型微加工四极杆质谱仪阵列及其制作方法

    公开(公告)号：US06188067B1

    公开(公告)日：2001-02-13

    申请号：US09436052

    申请日：1999-11-08

    申请人： Ara Chutjian ,  Michael Hecht ,  Otto Orient ,  Dean Wiberg ,  Reid A. Brennen

    发明人： Ara Chutjian ,  Michael Hecht ,  Otto Orient ,  Dean Wiberg ,  Reid A. Brennen

    IPC分类号： H01J4942

    CPC分类号： H01J49/0018 ,  H01J49/009 ,  H01J49/4215

    摘要： The present invention provides a quadrupole mass spectrometer and an ion filter for use in the quadrupole mass spectrometer. The ion filter includes a thin patterned layer including a two-dimensional array of poles forming one or more quadrupoles. The patterned layer design permits the use of very short poles and with a very dense spacing of the poles, so that the ion filter may be made very small. Also provided is a method for making the ion filter and the quadrupole mass spectrometer. The method involves forming the patterned layer of the ion filter in such a way that as the poles of the patterned layer are formed, they have the relative positioning and aligrnent for use in a final quadrupole mass spectrometer device.

    摘要翻译： 本发明提供一种用于四极质谱仪中的四极质谱仪和离子过滤器。 离子过滤器包括薄的图案层，其包括形成一个或多个四极的二维阵列阵列。 图案层设计允许使用非常短的极点和极的非常密集的间隔，使得离子过滤器可以非常小。 还提供了制造离子过滤器和四极质谱仪的方法。 该方法包括以这样的方式形成离子过滤器的图案化层，使得当形成图案层的极时，它们具有用于最终四极质谱仪装置中的相对定位和浓度。