Patent ID: 11908675
Assignee: PERKINELMER SCIENTIFIC CANADA ULC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An ion guide comprising:
a plurality of curved electrodes arranged along a curved central axis, wherein the plurality of electrodes define a curved ion guide region, the curved ion guide region beginning at an ion entrance and ending at an ion exit; and
an ion deflecting device configured to apply a radial DC electric field across the ion guide region and along the curved central axis,
wherein the ion guide region has a radius of curvature that varies along the curved central axis, and wherein the radius of curvature is at a maximum at the ion entrance and decreases along the curved central axis toward the ion exit such that the radius of curvature is at a minimum at the ion exit.