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1. 发明授权

US08692188B2 Mass spectrometers and methods of ion separation and detection 失效
标题翻译：质谱仪和离子分离和检测方法
公开(公告)号：US08692188B2
公开(公告)日：2014-04-08
申请号：US13580503
申请日：2010-11-10
申请人： Brian Christopher Webb
发明人： Brian Christopher Webb
IPC分类号： H01J49/26
CPC分类号： H01J49/401 , H01J49/403
摘要： A mass spectrometer operating according to the iso-tach principle in which a mass filter accelerates ions to nominally equal velocities irrespective of their mass-to-charge ratios. The mass spectrometer is provided with an improved detector based on an electrostatic lens arrangement made of a concave lens followed in the beam path by a convex lens. These lenses deflect ions away from the beam axis by a distance from the beam axis that is inversely proportional to their mass-to-charge ratios. The mass-to-charge ratio of the ions can then be determined by a suitable detector array, such as a multi-channel plate placed in the beam path. This provides a compact and sensitive instrument.
摘要翻译：质谱仪根据等离子体原理操作的质谱仪，其中质量过滤器将离子加速至名义上相等的速度，而与其质荷比无关。质谱仪具有基于由凹透镜制成的静电透镜布置的改进的检测器，后者是通过凸透镜在光束路径中。这些透镜使离子束离开光束轴离离与光束轴一定距离，其与其质荷比成反比。然后可以通过合适的检测器阵列（例如放置在光束路径中的多通道板）来确定离子的质荷比。这提供了一个紧凑和敏感的仪器。

2. 发明授权

US07247847B2 Mass spectrometers and methods of ion separation and detection 有权
标题翻译：质谱仪和离子分离和检测方法
公开(公告)号：US07247847B2
公开(公告)日：2007-07-24
申请号：US10480731
申请日：2002-05-29
申请人： Brian Christopher Webb , Donald Clifford Young
发明人： Brian Christopher Webb , Donald Clifford Young
IPC分类号： H01J49/00
CPC分类号： H01J49/34 , H01J49/443
摘要： A mass spectrometer comprises an ion source which provides a beam of ions; a mass filter comprising a pair of electrodes and a drive circuit, the drive circuit operable to apply a time varying voltage to the electrodes having a profile that accelerates the ions to equal velocities irrespective of their mass: charge ratios; and an ion detector for detecting the proportions of ions according to their mass-to-charge ratios. In one embodiment, the voltage profile is exponential. In another embodiment, the voltage profile is a sequence of constant amplitude and increasing repetition frequency pulses. The novel mass filter thus imparts equal velocities to all ion species irrespective of their mass. This allows the ion species to be discriminated at the detector by energy, enabling simple and compact detection schemes to be used.
摘要翻译：质谱仪包括提供离子束的离子源; 包括一对电极和驱动电路的质量过滤器，所述驱动电路可操作以向电极施加时变电压，所述电极具有将离子加速至相等速度的轮廓，而与其质量：充电比无关; 以及用于根据其质荷比检测离子比例的离子检测器。在一个实施例中，电压分布是指数的。在另一个实施例中，电压分布是恒定幅度和增加的重复频率脉冲的序列。因此，新颖的质量过滤器对所有离子物质赋予等速度，而不管其质量如何。这允许通过能量在检测器处鉴别离子种类，使得能够使用简单和紧凑的检测方案。

3. 发明授权

US08975579B2 Mass spectrometry apparatus and methods 有权
标题翻译：质谱仪和方法
公开(公告)号：US08975579B2
公开(公告)日：2015-03-10
申请号：US13582231
申请日：2011-03-02
申请人： David Bream , Christopher Newman , Brian Christopher Webb
发明人： David Bream , Christopher Newman , Brian Christopher Webb
IPC分类号： H01J49/40 , H01J49/34 , H01J49/44
CPC分类号： H01J49/34 , H01J49/443
摘要： A mass spectrometer having a mass filter which applies a transient voltage profile to accelerate ion packets. The voltage profile is chosen to have a functional form which imparts each ion species with a kinetic energy which is larger the larger the mass-to-charge ratio and a velocity which is smaller the larger the mass-to-charge ratio. The ions are detected in an ion detector which discriminates between different ion species based on their kinetic energy and taking account of the functional form of the voltage profile. Suitable voltage profiles include periodic functions such as sinusoids, triangles and sawtooths, which allow the amplification of drive pulses in the mass filter to be carried out with narrow band amplification stages, which are simple and inexpensive to construct.
摘要翻译：具有质量过滤器的质谱仪，其施加瞬态电压分布以加速离子包。电压分布被选择为具有赋予每个离子种类具有较大质量 - 电荷比越大的动能的功能形式，并且质量与电荷比越大的速度越小。在离子检测器中检测离子，其基于它们的动能鉴别不同的离子种类，并考虑到电压分布的功能形式。合适的电压曲线包括诸如正弦曲线，三角形和锯齿的周期性函数，其允许通过窄带放大级来进行质量滤波器中的驱动脉冲的放大，这是简单且便宜的构造。

4. 发明申请

US20120318972A1 MASS SPECTROMETRY APPARATUS AND METHODS 有权
标题翻译：质谱仪器和方法
公开(公告)号：US20120318972A1
公开(公告)日：2012-12-20
申请号：US13582231
申请日：2011-03-02
申请人： David Bream , Christopher Newman , Brian Christopher Webb
发明人： David Bream , Christopher Newman , Brian Christopher Webb
IPC分类号： H01J49/26
CPC分类号： H01J49/34 , H01J49/443
摘要： A mass spectrometer having a mass filter which applies a transient voltage profile to accelerate ion packets. The voltage profile is chosen to have a functional form which imparts each ion species with a kinetic energy which is larger the larger the mass-to- charge ratio and a velocity which is smaller the larger the mass-to-charge ratio. The ions are detected in an ion detector which discriminates between different ion species based on their kinetic energy and taking account of the functional form of the voltage profile. Suitable voltage profiles include periodic functions such as sinusoids, triangles and sawtooths, which allow the amplification of drive pulses in the mass filter to be carried out with narrow band amplification stages, which are simple and inexpensive to construct.
摘要翻译：具有质量过滤器的质谱仪，其施加瞬态电压分布以加速离子包。电压分布被选择为具有赋予每个离子种类的功能形式，其动能越大，质荷比越大，质荷比越大，速度越小。在离子检测器中检测离子，其基于它们的动能鉴别不同的离子种类，并考虑到电压分布的功能形式。合适的电压曲线包括诸如正弦曲线，三角形和锯齿的周期性函数，其允许通过窄带放大级来进行质量滤波器中的驱动脉冲的放大，这是简单且便宜的构造。

5. 发明申请

US20120312982A1 MASS SPECTROMETERS AND METHODS OF ION SEPARATION AND DETECTION 失效
标题翻译：质谱仪和离子分离检测方法
公开(公告)号：US20120312982A1
公开(公告)日：2012-12-13
申请号：US13580503
申请日：2010-11-10
申请人： Brian Christopher Webb
发明人： Brian Christopher Webb
IPC分类号： H01J49/26
CPC分类号： H01J49/401 , H01J49/403
摘要： A mass spectrometer operating according to the iso-tach principle in which a mass filter accelerates ions to nominally equal velocities irrespective of their mass-to-charge ratios. The mass spectrometer is provided with an improved detector based on an electrostatic lens arrangement made of a concave lens followed in the beam path by a convex lens. These lenses deflect ions away from the beam axis by a distance from the beam axis that is inversely proportional to their mass-to-charge ratios. The mass-to-charge ratio of the ions can then be determined by a suitable detector array, such as a multi-channel plate placed in the beam path. This provides a compact and sensitive instrument.
摘要翻译：质谱仪根据等离子体原理操作的质谱仪，其中质量过滤器将离子加速至名义上相等的速度，而与其质荷比无关。质谱仪具有基于由凹透镜制成的静电透镜布置的改进的检测器，后者是通过凸透镜在光束路径中。这些透镜使离子束离开光束轴离离与光束轴一定距离，其与其质荷比成反比。然后可以通过合适的检测器阵列（例如放置在光束路径中的多通道板）来确定离子的质荷比。这提供了一个紧凑和敏感的仪器。

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