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公开(公告)号：US20130256524A1
公开(公告)日：2013-10-03
申请号：US13702931
申请日：2011-06-07
申请人： Jeffery Mark Brown , Anthony James Gilbert , John Brian Hoyes , David J. Langridge , Jason Lee Wildgoose
发明人： Jeffery Mark Brown , Anthony James Gilbert , John Brian Hoyes , David J. Langridge , Jason Lee Wildgoose
IPC分类号： H01J49/40
CPC分类号： H01J49/401 , H01J49/0031 , H01J49/0095 , H01J49/062 , H01J49/067 , H01J49/405
摘要： A mass spectrometer is disclosed comprising a RF confinement device, a beam expander and a Time of Flight mass analyser. The beam expander is arranged to expand an ion beam emerging from the RF confinement device so that the ion beam is expanded to a diameter of at least 3 mm in the orthogonal acceleration extraction region of the Time of Flight mass analyser.
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公开(公告)号：US08895920B2
公开(公告)日：2014-11-25
申请号：US13702931
申请日：2011-06-07
申请人： Jeffery Mark Brown , Anthony James Gilbert , John Brian Hoyes , David J. Langridge , Jason Lee Wildgoose
发明人： Jeffery Mark Brown , Anthony James Gilbert , John Brian Hoyes , David J. Langridge , Jason Lee Wildgoose
CPC分类号： H01J49/401 , H01J49/0031 , H01J49/0095 , H01J49/062 , H01J49/067 , H01J49/405
摘要： A mass spectrometer is disclosed comprising a RF confinement device, a beam expander and a Time of Flight mass analyzer. The beam expander is arranged to expand an ion beam emerging from the RF confinement device so that the ion beam is expanded to a diameter of at least 3 mm in the orthogonal acceleration extraction region of the Time of Flight mass analyzer.
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公开(公告)号：US08519328B2
公开(公告)日：2013-08-27
申请号：US13435877
申请日：2012-03-30
IPC分类号： H01J49/26
CPC分类号： H01J49/427 , H01J49/4235
摘要： An ion guide or ion trap is disclosed having an entrance electrode and an exit electrode. The potential of the exit electrode is periodically dropped for a relatively short period of time allowing some ions to escape from the ion guide or ion trap via an aperture in the exit electrode. The period of time that the potential of the exit electrode is dropped for is progressively increased and ions emerge from the ion guide or ion trap in a mass to charge ratio dependent manner. The ion guide or ion trap may be operated as a mass separator or low resolution mass analyzer.
摘要翻译： 公开了一种具有入口电极和出射电极的离子导向器或离子阱。 出口电极的电位周期性地下降相当短的时间段，允许一些离子通过出射电极的孔离开离子导向器或离子阱。 出口电极的电位下降的时间段逐渐增加，并且离子导向器或离子阱以质荷比依赖的方式出现离子。 离子导向器或离子阱可以作为质量分离器或低分辨率质量分析器来操作。
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公开(公告)号：US20090121123A1
公开(公告)日：2009-05-14
申请号：US11916438
申请日：2006-06-05
CPC分类号： H01J49/427 , H01J49/4235
摘要： An ion guide or ion trap (1) is disclosed having an entrance electrode (2) and an exit electrode (3). The potential of the exit electrode (3) is periodically dropped for a relatively short period of time allowing some ions to escape from the ion guide or ion trap (1) via an aperture in the exit electrode (3). The period of time that the potential of the exit electrode (3) is dropped for is progressively increased and ions emerge from the ion guide or ion trap (1) in a mass to charge ratio dependent manner. The ion guide or ion trap (1) may be operated as a mass separator or low resolution mass analyser.
摘要翻译： 公开了一种具有入口电极（2）和出口电极（3）的离子导向器或离子阱（1）。 出口电极（3）的电位周期性地下降相当短的时间段，允许一些离子通过出射电极（3）中的孔从离子导向器或离子阱（1）逸出。 退出电极（3）的电位下降的时间段逐渐增加，并且离子导向器或离子阱（1）以质荷比依赖的方式出现离子。 离子导向器或离子阱（1）可以作为质量分离器或低分辨率质量分析器来操作。
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公开(公告)号：US08354634B2
公开(公告)日：2013-01-15
申请号：US12601094
申请日：2008-05-22
CPC分类号： H01J49/0036 , H01J49/40
摘要： A mass spectrometer is disclosed wherein an ion signal is split into a first and second signal. The first and second signals are multiplied by different gains and are digitised. Arrival time and intensity pairs are calculated for both digitised signals and the resulting time and intensity pairs are combined to form a high dynamic range spectrum. The spectrum is then combined with other corresponding spectra to form a summed spectrum.
摘要翻译： 公开了一种质谱仪，其中离子信号被分成第一和第二信号。 第一和第二信号乘以不同的增益并被数字化。 对于两个数字化信号计算到达时间和强度对，并且将所得到的时间和强度对组合以形成高动态范围谱。 然后将光谱与其他对应的光谱组合以形成相加光谱。
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公开(公告)号：US20120199734A1
公开(公告)日：2012-08-09
申请号：US13435877
申请日：2012-03-30
CPC分类号： H01J49/427 , H01J49/4235
摘要： An ion guide or ion trap is disclosed having an entrance electrode and an exit electrode. The potential of the exit electrode is periodically dropped for a relatively short period of time allowing some ions to escape from the ion guide or ion trap via an aperture in the exit electrode. The period of time that the potential of the exit electrode is dropped for is progressively increased and ions emerge from the ion guide or ion trap in a mass to charge ratio dependent manner. The ion guide or ion trap may be operated as a mass separator or low resolution mass analyser.
摘要翻译： 公开了一种具有入口电极和出射电极的离子导向器或离子阱。 出口电极的电位周期性地下降相当短的时间段，允许一些离子通过出射电极的孔离开离子导向器或离子阱。 出口电极的电位下降的时间段逐渐增加，并且离子导向器或离子阱以质荷比依赖的方式出现离子。 离子导向器或离子阱可以作为质量分离器或低分辨率质量分析器来操作。
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公开(公告)号：US07919747B2
公开(公告)日：2011-04-05
申请号：US12297481
申请日：2007-04-30
CPC分类号： H01J49/065 , H01J49/0031 , H01J49/022 , H01J49/062 , H01J49/36 , H01J49/4235 , Y10T436/24
摘要： An ion guide or mass analyser (2) is disclosed comprising a plurality of electrodes (2a) having apertures through which ions are transmitted in use. A pseudo-potential barrier is created at the exit of the ion guide or mass analyser (2). The amplitude or depth of the pseudo-potential barrier is inversely proportional to the mass to charge ratio of an ion. One or more transient DC voltages (4) are applied to the electrodes (2a) of the ion guide or mass analyser (2) in order to urge ions along the length of the ion guides or mass analyser (2). The amplitude of the transient DC voltage (4) applied to the electrode (2a) may be increased with time so that ions are caused to be emitted from the ion guide or mass analyser (2) in reverse order of their mass to charge ratio.
摘要翻译： 公开了一种离子导向器或质量分析器（2），其包括具有孔的多个电极（2a），在使用中通过该孔具有离子。 在离子导向器或质量分析器（2）的出口处产生伪势垒。 伪势垒的幅度或深度与离子的质荷比成反比。 一个或多个瞬态DC电压（4）被施加到离子导向器或质量分析器（2）的电极（2a），以促使沿着离子导向器或质量分析器（2）的长度的离子。 施加到电极（2a）的瞬态直流电压（4）的振幅可以随时间增加，从而离子引导或质量分析器（2）以与其质荷比相反的顺序发射离子。
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公开(公告)号：US07683314B2
公开(公告)日：2010-03-23
申请号：US10599572
申请日：2005-04-04
IPC分类号： H01J49/04
CPC分类号： H01J49/06 , Y10T436/24
摘要： A mass spectrometer is disclosed comprising an ion beam attenuator which attenuates an ion beam repeatedly switching between a zero transmission mode of operation during a time period ΔT1 and a non-zero transmission mode of operation during a time period ΔT2. The degree of attenuation of the ion beam can be varied by varying the mark space ratio ΔT2/ΔT1. The ion beam attenuator may release ions in packets or pulses but the packets or pulses of ions may be converted into a continuous ion beam by a relatively high pressure ion guide or gas collision cell arranged downstream of the ion beam attenuator.
摘要翻译： 公开了一种质谱仪，其包括离子束衰减器，该离子束衰减器衰减离子束在时间段Dgr; T1期间的零传输操作模式和在时间段Dgr; T2期间的非零传输操作模式之间重复切换。 可以通过改变标记空间比＆Dgr; T2 /＆Dgr; T1来改变离子束的衰减程度。 离子束衰减器可以以分组或脉冲的形式释放离子，但是离子束或脉冲可以通过布置在离子束衰减器下游的相对高压的离子导向器或气体碰撞元件转换为连续的离子束。
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公开(公告)号：US20110180704A1
公开(公告)日：2011-07-28
申请号：US13078198
申请日：2011-04-01
CPC分类号： H01J49/065 , H01J49/0031 , H01J49/022 , H01J49/062 , H01J49/36 , H01J49/4235 , Y10T436/24
摘要： An ion guide or mass analyser is disclosed comprising a plurality of electrodes having apertures through which ions are transmitted in use. A pseudo-potential barrier is created at the exit of the ion guide or mass analyser. The amplitude or depth of the pseudo-potential barrier is inversely proportional to the mass to charge ratio of an ion. One or more transient DC voltages are applied to the electrodes of the ion guide or mass analyser in order to urge ions along the length of the ion guides or mass analyser. The amplitude of the transient DC voltage applied to the electrode may be increased with time so that ions are caused to be emitted from the ion guide or mass analyser in reverse order of their mass to charge ratio.
摘要翻译： 公开了一种离子导向器或质量分析器，其包括具有孔的多个电极，在使用中离子传播通过该孔。 在离子导向器或质量分析器的出口处产生伪势垒。 伪势垒的幅度或深度与离子的质荷比成反比。 一个或多个瞬态直流电压被施加到离子导向器或质量分析器的电极，以沿着离子导向器或质量分析器的长度推动离子。 施加到电极的瞬态直流电压的幅度可以随时间增加，使得离子从离子导向器或质量分析器以其质荷比的相反顺序被发射。
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公开(公告)号：US20100213361A1
公开(公告)日：2010-08-26
申请号：US12601094
申请日：2008-05-22
CPC分类号： H01J49/0036 , H01J49/40
摘要： A mass spectrometer is disclosed wherein an ion signal is split into a first and second signal. The first and second signals are multiplied by different gains and are digitised. Arrival time and intensity pairs are calculated for both digitised signals and the resulting time and intensity pairs are combined to form a high dynamic range spectrum. The spectrum is then combined with other corresponding spectra to form a summed spectrum.
摘要翻译： 公开了一种质谱仪，其中离子信号被分成第一和第二信号。 第一和第二信号乘以不同的增益并被数字化。 对于两个数字化信号计算到达时间和强度对，并且将所得到的时间和强度对组合以形成高动态范围谱。 然后将光谱与其他对应的光谱组合以形成相加光谱。
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