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公开(公告)号：US06518569B1
公开(公告)日：2003-02-11
申请号：US09591536
申请日：2000-06-09
申请人： Jun Zhang , Benjamin D. Gardner , Christie G. Enke
发明人： Jun Zhang , Benjamin D. Gardner , Christie G. Enke
IPC分类号： H01J4900
CPC分类号： H01J49/405
摘要： Novel ion mirrors comprising, in a preferred embodiment, three cylinders, rectangles or truncated cones to improve the resolving power in the time-of-flight mass spectrometers over broad ion kinetic energy ranges. The achieved electric field is non-linear along the mirror axis and relatively homogeneous in the mirror off-axis directions. Combined with dimension optimization, in a preferred embodiment, the adjustment of only two parameters of element voltages can yield preferred electric field distribution to fit different ion optical systems.
摘要翻译： 在一个优选实施例中，新型离子镜包括三个圆柱体，矩形或截锥体，以在宽离子动能范围内提高飞行时间质谱仪中的分辨能力。 实现的电场沿着镜像轴是非线性的，并且在反射镜离轴方向上相对均匀。 结合尺寸优化，在优选实施例中，仅调整元件电压的两个参数可以产生优选的电场分布以配合不同的离子光学系统。
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2.发明授权Time-of-flight mass spectrometer combining fields non-linear in time and space 有权飞行时间质谱仪在时间和空间上组合非线性场公开(公告)号：US07372021B2
公开(公告)日：2008-05-13
申请号：US11352301
申请日：2006-02-13
摘要： A time-of-flight mass spectrometer which has an iron source, an evacuated tube proximate the ion source and adapted to receive ions from the ion source, and a detector disposed at an end of the evacuated tube opposite an end proximate the ion source. The ion source is constructed to generate an electric field that changes non-linearly as a function of position along a path from the ion source to the detector. The ion source is constructed to generate an electric field that changes as a function of time, the electric field being provided to accelerate ions from the ion source to the detector.
摘要翻译： 飞行时间质谱仪，其具有铁源，靠近离子源的真空管，并适于接收离子源的离子;以及检测器，设置在与靠近离子源的端部相对的真空管的端部处。 离子源被构造成产生电场，该电场作为沿着从离子源到检测器的路径的位置的函数而非线性地变化。 离子源被构造成产生随时间变化的电场，提供电场以加速离子从离子源到检测器的离子。
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公开(公告)号：US07015463B2
公开(公告)日：2006-03-21
申请号：US10508322
申请日：2003-04-09
CPC分类号： H01J49/40 , B82Y15/00 , H01J49/164
摘要： A mass spectrometer that includes an ionizing source, a sample holder arranged in a beam path of the ionizing source, an ion detector disposed to receive ions extracted from a sample when held by the sample holder and irradiated by the ionizing source. The mass spectrometer also includes an extraction electrode arranged proximate to the sample holder, and a drift tube arranged between the extraction electrode and the ion detector. In the mass spectrometer, the extraction electrode and the drift tube are movable together relative to the sample holder, which is held at a fixed position.
摘要翻译： 一种质谱仪，其包括电离源，设置在电离源的光束路径中的样品保持器，离子检测器，被设置成接收由样品保持并由电离源照射时从样品提取的离子。 质谱仪还包括靠近样品保持器布置的引出电极和布置在引出电极和离子检测器之间的漂移管。 在质谱仪中，提取电极和漂移管相对于保持在固定位置的样品保持器一起可移动。
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公开(公告)号：US07825374B2
公开(公告)日：2010-11-02
申请号：US10546323
申请日：2004-02-23
IPC分类号： H01J49/00
CPC分类号： H01J49/004 , H01J49/405
摘要： A tandem mass spectrometer includes a linear time-of-flight mass analyzer and curved field reflectron mass analyzer. The curved-field reflectron mass analyzer is disposed at an end of the linear time-of-flight mass analyzer such that ions having a plurality of ion masses formed in the linear time-of-flight analyzer such that ions having a plurality of ion masses formed in the linear time-of-flight analyzer enter the curved-field reflectron mass analyzer. The tandem mass spectrometer also includes a mass selection gate disposed between the time-of-flight mass analyzer and the curved-field reflectron mass analyzer. The mass selection gate selects an ion mass from the plurality of ion masses. Furthermore, the tandem mass spectrometer also includes a dissociating component located in a path of the ions formed in the linear time-of-flight analyzer. The dissociating component causes dissociation of the ions into a plurality of ion fragments.
摘要翻译： 串联质谱仪包括线性飞行时间质量分析仪和弯曲场反射体质量分析仪。 弯道反射体质量分析器设置在线性飞行时质量分析器的末端，使得在线性飞行时间分析器中形成多个离子质量的离子使得具有多个离子质量的离子 形成在线性飞行时间分析仪中进入曲面反射体质量分析仪。 串联质谱仪还包括设置在飞行时间质量分析器和弯曲场反射体质量分析器之间的质量选择门。 质量选择门从多个离子质量选择离子质量。 此外，串联质谱仪还包括位于在线性飞行时间分析仪中形成的离子的路径中的解离组分。 离解组分导致离子离解成多个离子片段。
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