Bent PCB ion guide for reduction of contamination and noise
AssigneeDH Technologies Development Pte. Ltd.
InventorsAaron Timothy Booy, James Hager
Life of this patent
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Abstract
In one aspect, an ion guide for use in a mass spectrometer is disclosed, which comprises a first plurality of conductive electrodes disposed on a first surface, a second plurality of conductive electrodes disposed on a second surface, wherein the two surfaces are positioned relative to one another and shaped so as to provide a passageway having an inlet for receiving an ion beam and an outlet through which target ions of interest exit the passageway. The ion guide further includes an orifice formed in at least one of those surfaces through which neutral species and/or large ion clusters, when present in the ion beam, exit the ion guide.
Claims20
An ion guide for use in a mass spectrometer, comprising:
- a first plurality of conductive electrodes disposed on a first surface,
- a second plurality of conductive electrodes disposed on a second surface,
- wherein said two surfaces are positioned relative to one another so as to provide a passageway having an inlet for receiving an ion beam and an outlet through which ions exit the passageway, said first and second plurality of electrodes being configured for application of RF and/or DC voltages thereto for generating an electromagnetic field within said passageway,
- an orifice formed in at least one of said surfaces,
- wherein said two surfaces are shaped such that said passageway comprises an upstream section receiving said ion beam and a downstream section that is offset relative to said upstream section such that one or more target ions in the ion beam travel from said upstream section to said downstream section to exit the passageway and one or more neutral species and/or large ion clusters, when present in the ion beam, exit the passageway through said orifice.
An ion guide for use in a mass spectrometer, comprising:
- a first plurality of conductive strips disposed on a surface of a first printed circuit board (PCB), wherein said surface is bent to provide at least two sections forming an angle relative to one another,
- a second plurality of conductive strips disposed on a surface of a second PCB, wherein said surface of the second PCB is bent to provide at least two sections tilted relative to one another,
- wherein said bent surfaces of the two PCBs are positioned relative to one another so as to provide a passageway having a first section comprising an inlet for receiving ions, said first section extending to a second section that is offset relative to said first section, wherein said conductive strips are configured for application of RF and/or DC voltage(s) thereto for generating an electromagnetic field within said ion passageway,
- an orifice formed within at least one of said surfaces of the first and second PCBs, wherein said first and second sections of the passageway and said orifice are arranged relative to one another such that one or more target ions received in the first section via said inlet travel under influence of said electromagnetic field to said second section and one or more neutral species and/or large ion clusters, when received via said inlet, exit the passageway through said orifice.
Dependencies are inferred from the claim text.