公开(公告)号：US07491931B2

公开(公告)日：2009-02-17

申请号：US11429371

申请日：2006-05-05

申请人： Stephen C. Gabeler

发明人： Stephen C. Gabeler

IPC分类号： H01J49/10

CPC分类号： H01J49/04 ,  H01J49/022 ,  H01J49/40

摘要： In various aspects, ion sources, mass spectrometer systems, and a power supply circuit coupled to a feedback circuit are provided. A power supply is provided that includes at least the power supply circuit and is operable to transfer charge to a load. The feedback circuit is responsive to a DC component of an output voltage supplied by the power supply in a first feedback loop and an AC component of the output voltage in a second feedback loop to produce a feedback signal representative of at least one of: a value of the output voltage before a charge transfer from a capacitor of the power supply to a load; the value of the output voltage during the charge transfer from the capacitor of the power supply to the load; or the value of the output voltage after the charge transfer from the capacitor of the power supply to the load.

摘要翻译： 在各个方面，提供了耦合到反馈电路的离子源，质谱仪系统和电源电路。 提供了至少包括电源电路并且可操作地将电荷传送到负载的电源。 反馈电路响应于在第一反馈回路中由电源提供的输出电压的DC分量和在第二反馈回路中的输出电压的AC分量以产生表示以下至少一个的反馈信号：值 在从电源的电容器到负载的电荷转移之前的输出电压; 在从电源的电容器到负载的电荷转移期间的输出电压的值; 或从电源的电容器到负载的电荷转移后的输出电压的值。

公开(公告)号：US20080087810A1

公开(公告)日：2008-04-17

申请号：US11548322

申请日：2006-10-11

申请人： Stephen C. Gabeler

发明人： Stephen C. Gabeler

IPC分类号： B01D59/44

CPC分类号： H01J49/40 ,  H01J49/0009

摘要： Disclosed are methods and apparatus for compensating for mass error for a time-of-flight mass spectrometer. A reference flight distance for a pulse of ions corresponding to a reference temperature of one or more components of an ion flight path assembly is determined, and the temperature of one or more components of the ion flight path assembly is measured. Correlating the thermal expansion of the flight path assembly with the temperature measurement allows the measured flight times to be adjusted to correspond with the reference flight distance to thereby compensate for the thermal expansion of the flight path assembly. A mass spectrum is obtained using the adjusted flight times. In various embodiments, the temperature signal is used with pre-determined thermal expansion correction factors for the flight path assembly to calculate a correction factor to control another component of the TOF MS, such as the voltage applied to a power supply system or a signal to control clock frequencies.

摘要翻译： 公开了用于补偿飞行时间质谱仪的质量误差的方法和装置。 确定对应于离子飞行路径组件的一个或多个部件的参考温度的离子脉冲的参考飞行距离，并且测量离子飞行路径组件的一个或多个部件的温度。 将飞行路径组件的热膨胀与温度测量相关联可以将测量的飞行时间调整为与参考飞行距离相对应，从而补偿飞行路径组件的热膨胀。 使用调整的飞行时间获得质谱。 在各种实施例中，温度信号与用于飞行路径组件的预定的热膨胀校正因子一起使用以计算校正因子以控制TOF MS的另一部件，例如施加到电源系统的电压或信号 控制时钟频率。

公开(公告)号：US20080067354A1

公开(公告)日：2008-03-20

申请号：US11429371

申请日：2006-05-05

申请人： Stephen C. Gabeler

发明人： Stephen C. Gabeler

IPC分类号： H01J49/10

CPC分类号： H01J49/04 ,  H01J49/022 ,  H01J49/40

摘要： In various aspects, ion sources, mass spectrometer systems, and a power supply circuit coupled to a feedback circuit are provided. A power supply is provided that includes at least the power supply circuit and is operable to transfer charge to a load. The feedback circuit is responsive to a DC component of an output voltage supplied by the power supply in a first feedback loop and an AC component of the output voltage in a second feedback loop to produce a feedback signal representative of at least one of: a value of the output voltage before a charge transfer from a capacitor of the power supply to a load; the value of the output voltage during the charge transfer from the capacitor of the power supply to the load; or the value of the output voltage after the charge transfer from the capacitor of the power supply to the load.

摘要翻译： 在各个方面，提供了耦合到反馈电路的离子源，质谱仪系统和电源电路。 提供了至少包括电源电路并且可操作地将电荷传送到负载的电源。 反馈电路响应于在第一反馈回路中由电源提供的输出电压的DC分量和在第二反馈回路中的输出电压的AC分量以产生表示以下至少一个的反馈信号：值 在从电源的电容器到负载的电荷转移之前的输出电压; 在从电源的电容器到负载的电荷转移期间的输出电压的值; 或从电源的电容器到负载的电荷转移后的输出电压的值。