公开(公告)号：US07528366B1

公开(公告)日：2009-05-05

申请号：US12107539

申请日：2008-04-22

申请人： James G. Boyle ,  Robert A. Valley

发明人： James G. Boyle ,  Robert A. Valley

IPC分类号： H01J49/40

CPC分类号： H01J49/107

摘要： A method and apparatus for multiplexing plural ion beams to a mass spectrometer. At least two ion sources are provided with means of transporting the ions from the ion sources to separate two-dimensional ion traps. Each ion trap is used for storage and transmission of the ions and operates between the ion sources and the mass analyzer. Each ion trap has a set of equally spaced, parallel multipole rods, as well as entrance and exit sections into which and from which ions enter and exit the trap, respectively. For each ion trap, the entrance section is placed in a region where background gas pressure is at viscous flow. The pressure at the exit section drops to molecular flow pressure regimes without a break in the structure of the ion trap. Each trap alternately stores and transmits ions by way of a fast voltage switch applied to the ion trap exit lens.

摘要翻译： 一种用于将多个离子束复制到质谱仪的方法和装置。 至少两个离子源具有将离子从离子源输送到分离的二维离子阱的装置。 每个离子阱用于离子的存储和传输，并在离子源和质量分析仪之间运行。 每个离子阱具有一组等间隔的平行多极杆，以及离子分别进入和离开的入口和出口部分。 对于每个离子阱，入口部分被放置在背景气体压力处于粘性流动的区域中。 出口部分的压力下降到分子流压力方案，而离子阱的结构没有中断。 每个陷阱通过施加到离子阱出口透镜的快速电压开关交替地存储和传输离子。

公开(公告)号：US07361888B1

公开(公告)日：2008-04-22

申请号：US11803581

申请日：2007-05-14

申请人： James G. Boyle ,  Robert A. Valley

发明人： James G. Boyle ,  Robert A. Valley

IPC分类号： H01J49/40

CPC分类号： H01J49/107

摘要： A method and apparatus for multiplexing plural ion beams to a mass spectrometer. At least two ion sources are provided with means of transporting the ions from the ion sources to separate two-dimensional ion traps. Each ion trap is used for storage and transmission of the ions and operates between the ion sources and the mass analyzer. Each ion trap has a set of equally spaced, parallel multipole rods, as well as entrance and exit sections into which and from which ions enter and exit the trap, respectively. For each ion trap, the entrance section is placed in a region where background gas pressure is at viscous flow. The pressure at the exit section drops to molecular flow pressure regimes without a break in the structure of the ion trap. Each trap alternately stores and transmits ions by way of a fast voltage switch applied to the ion trap exit lens.

摘要翻译： 一种用于将多个离子束复制到质谱仪的方法和装置。 至少两个离子源具有将离子从离子源输送到分离的二维离子阱的装置。 每个离子阱用于离子的存储和传输，并在离子源和质量分析仪之间运行。 每个离子阱具有一组等间隔的平行多极杆，以及离子分别进入和离开的入口和出口部分。 对于每个离子阱，入口部分被放置在背景气体压力处于粘性流动的区域中。 出口部分的压力下降到分子流压力方案，而离子阱的结构没有中断。 每个陷阱通过施加到离子阱出口透镜的快速电压开关交替地存储和传输离子。

公开(公告)号：US07217919B2

公开(公告)日：2007-05-15

申请号：US10979623

申请日：2004-11-02

申请人： James G. Boyle ,  Robert A. Valley

发明人： James G. Boyle ,  Robert A. Valley

IPC分类号： H01J49/40

CPC分类号： H01J49/063 ,  H01J49/107

摘要： A method/apparatus for multiplexing plural ion beams to a mass spectrometer. At least two ion sources are provided with means of transporting the ions from the ion sources to separate two-dimensional ion traps. Each ion trap is used for storage and transmission of the ions and operates between the ion sources and the mass analyzer. Each ion trap has a set of equally spaced, parallel multipole rods, as well as entrance and exit sections into which and from which ions enter and exit the trap, respectively. For each ion trap, the entrance section is placed in a region where background gas pressure is at viscous flow. The pressure at the exit section drops to molecular flow pressure regimes without a break in the structure of the ion trap. Each trap alternately stores and transmits ions by way of a fast voltage switch applied to the ion trap exit lens.

摘要翻译： 一种用于将多个离子束复制到质谱仪的方法/装置。 至少两个离子源具有将离子从离子源输送到分离的二维离子阱的装置。 每个离子阱用于离子的存储和传输，并在离子源和质量分析仪之间运行。 每个离子阱具有一组等间隔的平行多极杆，以及离子分别进入和离开的入口和出口部分。 对于每个离子阱，入口部分被放置在背景气体压力处于粘性流动的区域中。 出口部分的压力下降到分子流压力方案，而离子阱的结构没有中断。 每个陷阱通过施加到离子阱出口透镜的快速电压开关交替地存储和传输离子。