Dual-frequency RF ion confinement apparatus

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United States of America Patent

PATENT NO 11676808
APP PUB NO 20220301845A1
SERIAL NO

17713550

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Abstract

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An ion mobility separator comprises an RF-device for transversely confining ions in an ion region using: (a) a first set of electrodes arranged parallel to one another along a direction of ion travel to define a first transverse boundary of the ion region, and that are supplied with a first RF-voltage such that different phases of the first RF-voltage are applied to adjacent electrodes of the first set; and (b) a second set of electrodes arranged parallel to one another along said direction of ion travel to define a second transverse boundary of the ion region, and that are supplied with a second RF-voltage such that different phases of the second RF-voltage are applied to adjacent electrodes of the second set, the first and second transverse boundaries being substantially opposite each other in a transverse direction of the ion region and the first and second RF voltages having different frequencies.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Park, Melvin Andrew Billerica, US 45 457

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