ION TRAP and quality analysis device

• Main Authors: GILES ROGER, GILL MATTHEW CLIVE
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY

An ion trap having a segmented electrode structure having a plurality of segments consecutively positioned along an axis, wherein each segment includes a plurality of electrodes arranged around the axis. A first voltage supply is configured to operate in a radially confining mode in which at least some electrodes belonging to each segment are supplied with at least one AC voltage waveform so as toprovide a confining electric field for radially confining ions within the segment. A second voltage supply is configured to operate in a trapping mode in which at least some of the electrodes belonging to the segments are supplied with different DC voltages so as to provide a trapping electric field that has an axially varying profile for urging ions towards and trapping ions in a target segmentof the plurality of segments. The segment of the first subset is located within the first chamber. The segment of the second subset is located within the second chamber and the target segment is one of the segments of the seco