Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition
    2.
    发明授权
    Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition 失效
    多阳极检测器具有增加的飞行时间质谱仪的动态范围,具有计数数据采集功能

    公开(公告)号:US07060973B2

    公开(公告)日:2006-06-13

    申请号:US10957897

    申请日:2004-10-04

    申请人: Marc Gonin

    发明人: Marc Gonin

    IPC分类号: H01J49/00

    CPC分类号: H01J49/025 H01J49/40

    摘要: A new detection scheme for time-of-flight mass spectrometers is disclosed. This detection scheme allows extending the dynamic range of spectrometers operating with a counting technique (TDC). The extended dynamic range is achieved by constructing a multiple anode detector wherein the individual anodes detect different fractions of the incoming particles. Different anode fractions are achieved by varying the size, physical location, and electrical/magnetic fields of the various anodes. An anode with a small anode fraction avoids saturation and allows an ion detector to render an accurate count of ions even for abundant species.

    摘要翻译: 公开了一种新的飞行时间质谱仪检测方案。 该检测方案允许通过计数技术(TDC)扩展光谱仪的动态范围。 通过构建多阳极检测器来实现扩展的动态范围,其中各个阳极检测进入的颗粒的不同部分。 通过改变各种阳极的尺寸,物理位置和电/磁场来实现不同的阳极分数。 具有小阳极部分的阳极避免饱和,并且允许离子检测器即使对于丰富的物质也能提供精确的离子计数。

    Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition
    7.
    发明申请
    Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition 失效
    多阳极检测器具有增加的飞行时间质谱仪的动态范围,具有计数数据采集功能

    公开(公告)号:US20050040325A1

    公开(公告)日:2005-02-24

    申请号:US10957897

    申请日:2004-10-04

    申请人: Marc Gonin

    发明人: Marc Gonin

    IPC分类号: H01J49/02 H01J49/40 H01J49/00

    CPC分类号: H01J49/025 H01J49/40

    摘要: A new detection scheme for time-of-flight mass spectrometers is disclosed. This detection scheme allows extending the dynamic range of spectrometers operating with a counting technique (TDC). The extended dynamic range is achieved by constructing a multiple anode detector wherein the individual anodes detect different fractions of the incoming particles. Different anode fractions are achieved by varying the size, physical location, and electrical/magnetic fields of the various anodes. An anode with a small anode fraction avoids saturation and allows an ion detector to render an accurate count of ions even for abundant species.

    摘要翻译: 公开了一种新的飞行时间质谱仪检测方案。 该检测方案允许通过计数技术(TDC)扩展光谱仪的动态范围。 通过构建多阳极检测器来实现扩展的动态范围,其中各个阳极检测进入的颗粒的不同部分。 通过改变各种阳极的尺寸,物理位置和电/磁场来实现不同的阳极分数。 具有小阳极部分的阳极避免饱和,并且允许离子检测器即使对于丰富的物质也能提供精确的离子计数。

    Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition
    8.
    发明授权
    Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition 有权
    多阳极检测器具有增加的飞行时间质谱仪的动态范围,具有计数数据采集功能

    公开(公告)号:US06812454B2

    公开(公告)日:2004-11-02

    申请号:US10628145

    申请日:2003-07-28

    申请人: Marc Gonin

    发明人: Marc Gonin

    IPC分类号: H01J4900

    CPC分类号: H01J49/40 H01J49/025

    摘要: A new detection scheme for time-of-flight mass spectrometers is disclosed. This detection scheme allows extending the dynamic range of spectrometers operating with a counting technique (TDC). The extended dynamic range is achieved by constructing a multiple anode detector wherein the individual anodes detect different fractions of the incoming particles. Different anode fractions are achieved by varying the size, physical location, and electrical/magnetic fields of the various anodes. An anode with a small anode fraction avoids saturation and allows an ion detector to render an accurate count of ions even for abundant species.

    摘要翻译: 公开了一种新的飞行时间质谱仪检测方案。 该检测方案允许通过计数技术(TDC)扩展光谱仪的动态范围。 通过构建多阳极检测器来实现扩展的动态范围,其中各个阳极检测进入的颗粒的不同部分。 通过改变各种阳极的尺寸,物理位置和电/磁场来实现不同的阳极分数。 具有小阳极部分的阳极避免饱和,并且允许离子检测器即使对于丰富的物质也能提供精确的离子计数。

    ION GUIDE CHAMBER
    9.
    发明申请
    ION GUIDE CHAMBER 有权
    离子指导室

    公开(公告)号:US20080217528A1

    公开(公告)日:2008-09-11

    申请号:US12044059

    申请日:2008-03-07

    IPC分类号: B01D59/44 H01J3/14

    CPC分类号: H01J49/04

    摘要: An ion guide chamber comprising a gas-tight elongate chamber, at least one first electrode for generating a field for transporting ions along the elongate chamber and at least one second electrode for generating a field for focusing ions within the elongate chamber. The elongate chamber, e. g. constituted by a glass tube, comprises a resistive structure extending substantially along a main axis of the chamber, whereas the first electrode is constituted by the resistive structure. Furthermore, the second electrode is arranged outside the elongate chamber. Having the RF electrodes arranged outside the vacuum chamber, provides a mechanically simple solution as well as insuring that contamination of the RF electrodes to the analyte gas cannot occur. This allows for a cost-saving design of the RF electrodes and with the corresponding voltages outside the chamber, preferably at atmospheric pressure or high vacuum, avoids discharges within the tube.

    摘要翻译: 离子导向室包括气密细长室,用于产生用于沿细长室输送离子的场的至少一个第一电极和至少一个第二电极,用于产生用于在细长室内聚焦离子的场。 细长室,例如 G。 由玻璃管构成,包括基本上沿着室的主轴延伸的电阻结构,而第一电极由电阻结构构成。 此外,第二电极布置在细长室的外部。 使RF电极布置在真空室外部,提供机械上简单的解决方案,并确保RF电极对分析物气体的污染不会发生。 这允许RF电极的成本节约设计和室外的相应电压,优选在大气压或高真空下,避免了管内的放电。

    APPARATUS FOR MASS ANALYSIS OF IONS
    10.
    发明申请
    APPARATUS FOR MASS ANALYSIS OF IONS 审中-公开
    离子质量分析装置

    公开(公告)号:US20080149825A1

    公开(公告)日:2008-06-26

    申请号:US11953442

    申请日:2007-12-10

    IPC分类号: B01D59/44

    CPC分类号: H01J49/4215 H01J49/40

    摘要: An apparatus for mass analysis of ions comprises a high current ion source, in particular an ion source providing at least 5 million ions/s, preferably at least 50 million ions/s, at an output of the ion source, a time-of-flight mass spectrometer for analysis of ions transmitted from the ion source and a filter for segmenting incoming ions according to their m/q ratio into a first group of ions and into a second group of ions. The filter is coupled to the ion source and the filter and the time-of-flight mass spectrometer are arranged in such a way that the ions of the first group are transmitted to the mass spectrometer and that the ions of the second group are not transmitted to the mass spectrometer. Furthermore, the filter is designed in such a way that the second group consists of ions belonging to one or several narrow bands of m/q. The apparatus allows for analyzing minor compound ions generated by the high current ion source with good selectivity, undisturbed by major compounds.

    摘要翻译: 用于离子质量分析的装置包括高电流离子源,特别是在离子源的输出处提供至少500万个离子/秒,优选至少5000万个离子/秒的离子源, 用于分析从离子源传输的离子的飞行质谱仪和用于根据它们的m / q比将进入的离子分成第一组离子并进入第二组离子的过滤器。 过滤器耦合到离子源并且过滤器和飞行时间质谱仪以这样的方式排列,使得第一组的离子被传输到质谱仪,并且第二组的离子不被传输 到质谱仪。 此外,滤光器被设计成使得第二组由属于m / q的一个或几个窄带的离子组成。 该装置允许以高电流离子源产生的次要复合离子以良好的选择性分析,而不受主要化合物干扰。