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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
    • 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。
    • 10. 发明申请
    • MULTI-ELECTRODE ION TRAP
    • 多电极离子阱
    • WO2007000587A2
    • 2007-01-04
    • PCT/GB2006/002361
    • 2006-06-27
    • THERMO FINNIGAN LLCMAKAROV, Alexander, Alekseevich
    • MAKAROV, Alexander, Alekseevich
    • H01J49/42
    • H01J49/282H01J49/0009H01J49/0031H01J49/22H01J49/424H01J49/425
    • This invention relates generally to multi-reflection electrostatic systems, and more particularly to improvements in and relating to the Orbitrap electrostatic ion trap. A method of operating an electrostatic ion trapping device having an array of electrodes operable to mimic a single electrode is proposed, the method comprising determining three or more different voltages that, when applied to respective electrodes of the plurality of electrodes, generate an electrostatic trapping field that approximates the field that would be generated by applying a voltage to the single electrode, and applying the three or more so determined voltages to the respective electrodes. Further improvements lie in measuring a plurality of features from peaks with different intensities from one or more collected mass spectra to derive characteristics, and using the measured characteristics to improve the voltages to be applied to the plurality of electrodes.
    • 本发明一般涉及多反射静电系统,更具体地涉及Orbitrap静电离子阱的改进和涉及。 提出了一种操作具有可操作以模拟单个电极的电极阵列的静电离子捕获装置的方法,所述方法包括确定当施加到所述多个电极中的各个电极时产生静电捕获场的三个或更多个不同的电压 其近似于将通过向单个电极施加电压而产生的场,以及将三个或更多个如此确定的电压施加到各个电极。 进一步的改进在于从具有不同强度的峰与一个或多个收集的质谱测量多个特征以导出特性,并且使用测量的特性来改善施加到多个电极的电压。