Curved ion guide with varying ion deflecting field and...

Details Curved ion guide with varying ion deflecting field and... Curved ion guide with varying ion deflecting field and...

2009-05-28

2011-12-27

Johnston, Phillip A (Department: 2881)

Radiant energy

With charged particle beam deflection or focussing

Magnetic lens

C250S282000, C250S292000

Reexamination Certificate

active

08084750

ABSTRACT:
An ion guide includes a plurality of curved electrodes and an ion deflecting device. The electrodes are arranged about and radially spaced from a central curved axis, and circumscribe a curved ion guide region from an ion entrance to an ion exit. The ion deflecting device may include a device for applying a DC electric field to one or more electrodes in a radial direction. The magnitude of the DC electric field, and thus the ion deflecting force, varies along the curved axis. The ion guide may for example operate as a collision cell or like instrument.

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