Method and device for the transport of ions in vacuum
AssigneeBruker-Franzen Analytik GmbH
InventorJochen Franzen
Life of this patent
Estimating the term…
Abstract
The invention relates to methods and devices for the efficient and loss-free transfer of ions in moderate vacuum from a first location (a source) to a second location (a user). The invention consists of an arrangement, reaching from the first location to the second, of five pole rods (a pentapole) to which a five-phase radio frequency (RF) voltage is applied.
Claims10
RF ion guide system, consisting of parallel, electrically conductive pole rods, for the transportation of ions in a vacuum from a first to a second location, with devices for generating the RF voltages supplied to the pole rods,
- wherein the rod system consists of five pole rods, and wherein a five-phase RF voltage is used, each phase connected to one of the five pole rods, whereby the voltages of consecutive phases are not applied to adjacent rods.
Method for transferring ions in a vacuum from a first to a second location with the aid of an RF ion guide system, wherein the ion guide system consists of five parallel pole rods, and wherein a phase of a five-phase RF voltage is applied to each pole rod, whereby the voltages of consecutive phases are not applied to adjacent rods.
Dependencies are inferred from the claim text.