High duty cycle ion spectrometer

摘要

An ion spectrometer is provided, comprising: an ion source, arranged to generate ions continuously with a first range of mass to charge ratios; and an ion trap, arranged to receive ions from the ion source along an axis, and to eject ions with a second range of mass to charge ratios orthogonally to that axis, the second range of mass to charge ratios being narrower than the first range of mass to charge ratios. In some embodiments, ions generated by the ion source continuously flow into the ion trap. Additionally or alternatively, ion optics receive ions ejected from the ion trap and cool the ions without substantial fragmentation. An ion analyzer receives ions ejected from the ion trap or ion optics and separates the ions in accordance with at least one characteristic of the ions.

主权项

1. An ion spectrometer, comprising:
an ion source, arranged to generate ions continuously with a first range of mass to charge ratios; an ion trap, arranged to receive ions from the ion source along an axis, and to eject ions with a second range of mass to charge ratios orthogonally to that axis, the second range of mass to charge ratios being narrower than the first range of mass to charge ratios; a power supply, coupled to the ion source and ion trap so as to provide a potential causing ions generated by the ion source to continuously flow into the ion trap; and an ion analyser, arranged to receive ions ejected from the ion trap and separate the ions in accordance with at least one characteristic of the ions.