Ions Funnels Having Improved Pressure Distribution and Flow Characteristics

The present disclosure is directed to an ion funnel and associated systems, where the ion funnel includes a plurality of electrodes each define an opening having an associated inner dimension and receive a RF voltage. The associated inner dimensions progressively reduce in size from approximately a...

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Bibliographic Details
Main Authors DeBord, John Daniel, Krioutchkov, Serguei, Levine, Myles Elliott, Buttrill, JR., Sidney E, Deng, Liulin, Roehr, Nathan Paul
Format Patent
LanguageEnglish
Published 16.02.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:The present disclosure is directed to an ion funnel and associated systems, where the ion funnel includes a plurality of electrodes each define an opening having an associated inner dimension and receive a RF voltage. The associated inner dimensions progressively reduce in size from approximately a first inner dimension to approximately a second inner dimension. The electrodes define a slope parameter with respect to adjacent electrodes, which is less than 0.04 for at least a majority of the electrodes. Additional systems and methods are provided for transferring ions from an ion funnel to an ion mobility device having a pressure greater than that of the ion funnel, for selectively transferring ions from the ion funnel to the ion mobility device, and for stripping ions of certain molecules adducted thereto during transfer.
Bibliography:Application Number: US202217962670