公开(公告)号：US11361958B2

公开(公告)日：2022-06-14

申请号：US16970252

申请日：2019-02-15

Applicant: Micromass UK Limited

Inventor： David Gordon ,  David Langridge ,  Martin Raymond Green ,  Richard Moulds ,  Daniel J. Kenny ,  Kenneth Worthington

IPC: H01J49/42 ,  H01J49/00

Abstract: A method of operating a quadrupole device is disclosed. The method comprises operating the quadrupole device in a first mode of operation, wherein ions within a first mass to charge ratio range are selected and/or transmitted by the quadrupole device, and operating the quadrupole device in a second mode of operation, wherein ions within a second different mass to charge ratio range are selected and/or transmitted by the quadrupole device. In the first mode of operation, the quadrupole device is operated in a normal mode of operation wherein a main drive voltage is applied to the quadrupole device, or in a first X-band or Y-band mode of operation wherein a main drive voltage and two or more auxiliary drive voltages are applied to the quadrupole device. In the second mode of operation, the quadrupole device is operated in a second X-band or Y-band mode of operation wherein a main drive voltage and two or more auxiliary drive voltages are applied to the quadrupole device.

公开(公告)号：US20220130655A1

公开(公告)日：2022-04-28

申请号：US17436213

申请日：2020-02-27

Applicant: Micromass UK Limited

Inventor： Kenneth Worthington ,  Martin Raymond Green

IPC: H01J49/02 ,  H01F30/16 ,  H01F27/28

Abstract: An ion-optical device comprising: a plurality of electrodes (2); a first AC voltage supply (6); and a transformer (4) having: a toroidal core (8); a primary winding (10) connected to the AC voltage supply (6) and passing through the aperture within the toroidal core (8); and at least one secondary winding (13,15) wound around the toroidal core 8 and electrically connected to multiple ones of said plurality of electrodes.

公开(公告)号：US11521844B2

公开(公告)日：2022-12-06

申请号：US16979068

申请日：2019-03-11

Applicant: Micromass UK Limited

Inventor： John Garside ,  Kenneth Worthington

IPC: H01J49/06 ,  G01N27/622 ,  H01J49/02 ,  H01J49/24 ,  H01J49/42 ,  H01J37/32

Abstract: An ion confinement device (2) comprising: a plurality of electrodes arranged and configured for confining ions when an AC or RF voltage is applied thereto; and at least one inductive ballast (10a,10b), each ballast connected to at least some of said electrodes so as to form a resonator circuit therewith.

公开(公告)号：US12033840B2

公开(公告)日：2024-07-09

申请号：US17436213

申请日：2020-02-27

Applicant: Micromass UK Limited

Inventor： Kenneth Worthington ,  Martin Raymond Green

IPC: H01J49/02 ,  H01F27/28 ,  H01F30/16 ,  H01J49/42

CPC classification number: H01J49/022 ,  H01F27/2823 ,  H01F30/16 ,  H01J49/4215 ,  H01J49/4225 ,  H01J49/424

Abstract: An ion-optical device comprising: a plurality of electrodes (2); a first AC voltage supply (6); and a transformer (4) having: a toroidal core (8); a primary winding (10) connected to the AC voltage supply (6) and passing through the aperture within the toroidal core (8); and at least one secondary winding (13,15) wound around the toroidal core 8 and electrically connected to multiple ones of said plurality of electrodes.

公开(公告)号：US20210082680A1

公开(公告)日：2021-03-18

申请号：US16970252

申请日：2019-02-15

Applicant: Micromass UK Limited

Inventor： Gordon David ,  David Langridge ,  Martin Raymond Green ,  Richard Moulds ,  Daniel J. Kenny ,  Kenneth Worthington

IPC: H01J49/42

Abstract: A method of operating a quadrupole device is disclosed. The method comprises operating the quadrupole device in a first mode of operation, wherein ions within a first mass to charge ratio range are selected and/or transmitted by the quadrupole device, and operating the quadrupole device in a second mode of operation, wherein ions within a second different mass to charge ratio range are selected and/or transmitted by the quadrupole device. In the first mode of operation, the quadrupole device is operated in a normal mode of operation wherein a main drive voltage is applied to the quadrupole device, or in a first X-band or Y-band mode of operation wherein a main drive voltage and two or more auxiliary drive voltages are applied to the quadrupole device. In the second mode of operation, the quadrupole device is operated in a second X-band or Y-band mode of operation wherein a main drive voltage and two or more auxiliary drive voltages are applied to the quadrupole device.