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    • 2. 发明申请
    • RF POWER SUPPLY FOR A MASS SPECTROMETER
    • 射频电源用于质谱仪
    • WO2005124821A3
    • 2006-12-07
    • PCT/GB2005002444
    • 2005-06-21
    • THERMO FINNIGAN LLCMAKAROV ALEXANDER ALEKSEEVICHDENISOV EDUARD VKHOLOMEEV ALEXANDER
    • MAKAROV ALEXANDER ALEKSEEVICHDENISOV EDUARD VKHOLOMEEV ALEXANDER
    • H01J49/42H01J49/02
    • H01J49/0031H01J49/022H01J49/36H01J49/423H01J49/427
    • The present invention provides a radio frequency (RF) power supply in a mass spectrometer. The power supply provides an RF signal to electrodes of a storage device to create a trapping field. Such ion storage devices are often used to store ions prior to ejection to a subsequent mass analyser. The RF field is usually collapsed prior to ion ejection. The present invention provides a RF power supply comprising: a RF signal supply, a coil arranged to receive the signal provided by the RF signal supply and to provide an output RF signal for supply to electrodes of an ion storage device, and a shunt including a switch operative to switch between a first open position and a second closed position in which the shunt including a switch operative to switch between a first open position and a second closed position in which the shunt shorts the coil output.
    • 本发明提供质谱仪中的射频(RF)电源。 电源向存储设备的电极提供RF信号以产生捕获场。 这种离子存储装置通常用于在离开之前存储离子到随后的质量分析器。 射频场通常在离子喷射之前倒塌。 本发明提供一种RF电源,包括:RF信号电源,被布置成接收由RF信号电源提供的信号的线圈,并提供用于供应到离子存储装置的电极的输出RF信号,以及包括 开关,其操作以在第一打开位置和第二关闭位置之间切换,其中所述分流器包括可操作地在第一打开位置和第二关闭位置之间切换的开关,在所述第一打开位置和所述第二关闭位置之间所述分流器使所述线圈输出
    • 3. 发明申请
    • METHOD AND APPARATUS FOR ION FRAGMENTATION BY ELECTRON CAPTURE
    • 电子捕获离子分离的方法和装置
    • WO2005096342A2
    • 2005-10-13
    • PCT/GB2005001198
    • 2005-03-29
    • THERMO FINNIGAN LLCMAKAROV ALEXANDER ALEKSEEVICHDENISOV EDUARD VJUNG GERHARD
    • MAKAROV ALEXANDER ALEKSEEVICHDENISOV EDUARD VJUNG GERHARD
    • H01J49/04H01J37/00
    • H01J49/0054
    • The present invention relates to a method and apparatus for ion fragmentation by electron capture. The present invention provides a method of generating fragment ions by electron capture, comprising; directing ions to be fragmented into a fragmentation chamber of a mass spectrometer into a fragmentation chamber of a mass spectrometer arrangement; trapping at least some of the ions to be fragmented in at least one direction of the fragmentation chamber by using a magnetic field, the ions being trapped within a volume V; generating an electron beam using an electron source located away from the volume V; irradiating the trapped ions in the volume V with the electrons generated by the electron source in the presence of the said magnetic field, so as to cause dissociation; and ejecting the resultant fragment ions from the fragmentation chamber for subsequent analysis at a different location away from the fragmentation chamber.
    • 本发明涉及一种通过电子捕获进行离子碎片化的方法和装置。 本发明提供了一种通过电子捕获产生碎片离子的方法,包括: 将离子分散成质谱仪的碎裂室进入质谱仪布置的碎裂室; 通过使用磁场捕获在碎裂室的至少一个方向上被分段的至少一些离子,离子被捕获在体积V内; 使用远离体积V的电子源产生电子束; 在存在所述磁场的情况下用电子源产生的电子照射体积V中的被俘获的离子,以引起解离; 并将所得的碎片离子从碎裂室排出,以便在远离碎裂室的不同位置进行后续分析。
    • 5. 发明申请
    • MASS ANALYSER
    • 质量分析仪
    • WO2012152950A1
    • 2012-11-15
    • PCT/EP2012/058941
    • 2012-05-14
    • THERMO FISHER SCIENTIFIC (BREMEN) GMBHDENISOV, Eduard V.KHOLOMEEV, AlexanderHAUSCHILD, Jan-PeterMAKAROV, Alexander Alekseevich
    • DENISOV, Eduard V.KHOLOMEEV, AlexanderHAUSCHILD, Jan-PeterMAKAROV, Alexander Alekseevich
    • H01J49/42
    • H01J49/26H01J49/425Y10T29/49117
    • A mass analyser comprises: an electrical field generator, providing a time-varying electric field for injection of ions to be analysed, excitation of ions to be analysed or both; first and second detection electrodes, each of which receives a respective voltage pickup due to the time-varying electric field and provides a respective detection signal based on a respective image current at the detection electrode; and a differential amplifier, providing an output based on the difference between the detection signal for the first detection electrode and the detection signal for the second detection electrode. It may also be provided that the electrical field generator comprises at least one field generating electrode without a spatially symmetrical counterpart and the capacitance between each field generating electrode and the first detection electrode is substantially the same as the capacitance between that field generating electrode and the second detection electrode.
    • 质量分析器包括:电场发生器,提供用于注入要分析的离子的时变电场,要分析的离子的激发或两者; 第一和第二检测电极,每个检测电极由于时变电场而接收相应的电压拾取器,并且基于检测电极处的各自的图像电流提供相应的检测信号; 以及差分放大器,基于第一检测电极的检测信号和第二检测电极的检测信号之间的差提供输出。 还可以提供的是,电场发生器包括至少一个没有空间对称的场产生电极,并且每个场产生电极和第一检测电极之间的电容与该场产生电极和第二检测电极之间的电容基本相同 检测电极。
    • 7. 发明申请
    • MULTI-CHANNEL DETECTION
    • 多通道检测
    • WO2008046594A2
    • 2008-04-24
    • PCT/EP2007/008985
    • 2007-10-17
    • THERMO FISHER SCIENTIFIC (BREMEN) GMBHMAKAROV, Alexander, Alekseevich
    • MAKAROV, Alexander, Alekseevich
    • H01J49/406H01J49/004H01J49/025H01J49/061H01J49/408
    • A mass spectrometer and method of mass spectrometry wherein charged particles in a beam undergo multiple changes of direction. A detection arrangement detects a first portion of the charged particle beam, and provides a first output based upon the intensity of the detected first portion of the charged particle beam. The detection arrangement detects a second portion of the charged particle beam that has travelled a greater path length through the mass spectrometer than the first portion of the charged particle beam, and provides a second output based upon the detected second portion of the charged particle beam. A controller adjusts the parameters of the charged particle beam and/or the detection arrangement, based upon the first output of the detection arrangement, so as to adjust the second output of the detection arrangement.
    • 质谱仪和质谱法,其中束中的带电粒子经历多个方向改变。 检测装置检测带电粒子束的第一部分,并且基于所检测到的带电粒子束的第一部分的强度提供第一输出。 检测装置检测带电粒子束的第二部分,该第二部分已经比通过质谱仪行进了比带电粒子束的第一部分更大的路径长度,并且基于检测到的带电粒子束的第二部分提供第二输出。 控制器基于检测装置的第一输出来调整带电粒子束和/或检测装置的参数,以便调整检测装置的第二输出。
    • 10. 发明申请
    • RF POWER SUPPLY FOR A MASS SPECTROMETER
    • 射频电源用于质谱仪
    • WO2005124821A2
    • 2005-12-29
    • PCT/GB2005/002444
    • 2005-06-21
    • THERMO FINNIGAN LLCMAKAROV, Alexander, AlekseevichDENISOV, Eduard, V.KHOLOMEEV, Alexander
    • MAKAROV, Alexander, AlekseevichDENISOV, Eduard, V.KHOLOMEEV, Alexander
    • H01J49/42
    • H01J49/0031H01J49/022H01J49/36H01J49/423H01J49/427
    • The present invention provides a radio frequency (RF) power supply in a mass spectrometer. The power supply provides an RF signal to electrodes of a storage device to create a trapping field. Such ion storage devices are often used to store ions prior to ejection to a subsequent mass analyser. The RF field is usually collapsed prior to ion ejection. The present invention provides a RF power supply comprising: a RF signal supply, a coil arranged to receive the signal provided by the RF signal supply and to provide an output RF signal for supply to electrodes of an ion storage device, and a shunt including a switch operative to switch between a first open position and a second closed position in which the shunt including a switch operative to switch between a first open position and a second closed position in which the shunt shorts the coil output.
    • 本发明提供质谱仪中的射频(RF)电源。 电源向存储设备的电极提供RF信号以产生捕获场。 这种离子存储装置通常用于在离开之前存储离子到随后的质量分析器。 射频场通常在离子喷射之前倒塌。 本发明提供一种RF电源,包括:RF信号电源,被布置成接收由RF信号电源提供的信号的线圈,并提供用于供应到离子存储装置的电极的输出RF信号,以及包括 开关,其操作以在第一打开位置和第二关闭位置之间切换,其中所述分流器包括可操作地在第一打开位置和第二关闭位置之间切换的开关,在所述第一打开位置和所述第二关闭位置中,所述分流器使所述线圈输出短路。