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    Mass analyzer with 3D electrostatic field
    81.
    发明授权
    Mass analyzer with 3D electrostatic field 有权

    公开(公告)号：US11942318B2

    公开(公告)日：2024-03-26

    申请号：US16919460

    申请日：2020-07-02

    Applicant: SHIMADZU CORPORATION

    Inventor： Vyacheslav Shchepunov

    IPC: H01J49/42 ,  H01J49/06 ,  H01J49/40

    CPC classification number: H01J49/4245 ,  H01J49/061 ,  H01J49/062 ,  H01J49/401 ,  H01J49/403 ,  H01J49/408

    Abstract: A mass analyser for use in a mass spectrometer, the mass analyser having: a set of sector electrodes spatially arranged to provide an electrostatic field in a 2D reference plane suitable for guiding ions along an orbit in the 2D reference plane, wherein the set of sector electrodes extend along a drift path that is locally orthogonal to the reference plane so that, in use, the set of sector electrodes provide a 3D electrostatic field region; and an injection interface configured to inject ions into the mass analyser via an injection opening such that the ions injected into the mass analyser are guided by the 3D electrostatic field region along a 3D reference trajectory according to which ions perform multiple turns within the mass analyser whilst drifting along the drift path, wherein each turn corresponds to a completed orbit in the 2D reference plane. The injection interface includes at least one injection deflector located within the mass analyser, the at least one injection deflector being configured to deflect ions injected into the mass analyser in the direction of the drift path, wherein the injection interface is preferably configured so that ions guided along the 3D reference trajectory are, after injection into the mass analyser, kept adequately distant from the injection opening such that they are substantially unaffected by electric field distortions around the injection opening.

    SYSTEMS AND METHODS FOR ANALYZING SAMPLES
    82.
    发明公开
    SYSTEMS AND METHODS FOR ANALYZING SAMPLES 审中-公开

    公开(公告)号：US20240047189A1

    公开(公告)日：2024-02-08

    申请号：US18048049

    申请日：2022-10-20

    Applicant: CMP Scientific Corp.

    Inventor： Paul Nurmi ,  Joshua Wiley ,  Qiangwei Xia

    IPC: H01J49/06 ,  H01J49/26

    CPC classification number: H01J49/067 ,  H01J49/061 ,  H01J49/26

    Abstract: Systems and methods for analyzing samples are provided. In some embodiments, a mass spectrometer may include a source configured to output a plurality of particles, a tube having a central axis, and a skimmer. In some embodiments, the skimmer may include an aperture arranged to receive the one or more charged particles deflected by a deflector and a contact surface comprising an intersection point that intersects the central axis of the tube. The intersection point may be spaced from the aperture by a distance of at least 5 mm.

    Ion injection to an electrostatic trap
    83.
    发明授权
    Ion injection to an electrostatic trap 有权

    公开(公告)号：US11842892B2

    公开(公告)日：2023-12-12

    申请号：US17724219

    申请日：2022-04-19

    Applicant: Thermo Fisher Scientific (Bremen) GmbH

    Inventor： Mikhail Belov ,  Eduard Denisov ,  Gregor Quiring ,  Dmitry Grinfeld

    IPC: H01J49/00 ,  H01J49/42 ,  H01J49/06

    CPC classification number: H01J49/4245 ,  H01J49/061 ,  H01J49/063 ,  H01J49/4295

    Abstract: Ions are injected into an orbital electrostatic trap. An ejection potential is applied to an ion storage device, to cause ions stored in the ion storage device to be ejected towards the orbital electrostatic trap. Synchronous injection potentials are applied to a central electrode of the orbital electrostatic trap and a deflector electrode associated with the orbital electrostatic trap, to cause the ions ejected from the ion storage device to be captured by the electrostatic trap such that they orbit the central electrode. Application of the ejection potential and application of the synchronous injection potentials are each started at respective different times, the difference in times being selected based on desired values of mass-to-charge ratios of ions to be captured by the orbital electrostatic trap.

    Accelerator for multi-pass mass spectrometers
    84.
    发明授权
    Accelerator for multi-pass mass spectrometers 有权

    公开(公告)号：US11817303B2

    公开(公告)日：2023-11-14

    申请号：US16636877

    申请日：2018-07-26

    Applicant: Micromass UK Limited

    Inventor： Anatoly Verenchikov ,  Mikhail Yavor

    IPC: H01J49/40 ,  H01J49/00 ,  H01J49/02 ,  H01J49/06 ,  H01J49/16 ,  H01J49/42

    CPC classification number: H01J49/403 ,  H01J49/0031 ,  H01J49/025 ,  H01J49/061 ,  H01J49/164 ,  H01J49/401 ,  H01J49/405 ,  H01J49/406 ,  H01J49/4245

    Abstract: Improved pulsed ion sources and pulsed converters are proposed for multi-pass time-of-flight mass spectrometer, either multi-reflecting (MR) or multi-turn (MT) TOF. A wedge electrostatic field (45) is arranged within a region of small ion energy for electronically controlled tilting of ion packets (54) time front. Tilt angle γ of time front (54) is strongly amplified by a post-acceleration in a flat field (48). Electrostatic deflector (30) downstream of the post-acceleration (48) allows denser folding of ion trajectories, whereas the injection mechanism allows for electronically adjustable mutual compensation of the time front tilt angle, i.e. γ=0 for ion packet in location (55), for curvature of ion packets, and for the angular energy dispersion. The arrangement helps bypassing accelerator (40) rims, adjusting ion packets inclination angles α2 and what is most important, compensating for mechanical misalignments of the optical components.

    Device and method to manipulate ions in multi-level system
    85.
    发明授权
    Device and method to manipulate ions in multi-level system 有权

    公开(公告)号：US11796504B2

    公开(公告)日：2023-10-24

    申请号：US17399629

    申请日：2021-08-11

    Applicant: Battelle Memorial Institute

    Inventor： Yehia M. Ibrahim ,  Adam L. Hollerbach ,  Ailin Li

    IPC: G01N27/622 ,  H01J49/06 ,  H01J49/42 ,  G01N27/68

    CPC classification number: G01N27/622 ,  H01J49/061 ,  H01J49/062 ,  H01J49/4225 ,  G01N27/68

    Abstract: An apparatus includes multiple levels of ion transport channels, with successive levels coupled by elevator channels. Efficient three dimensional packing provides long path lengths in practical volumes for ion mobility separation with high resolving power. Disclosed elevator configurations provide efficient routing of ion transport channels across levels with low ion loss, enabling ion mobility separation over 100 levels or more. Elevator configurations include (i) opposed traveling waves meeting at an elevator entrance, (ii) external elevator with a wrap-around electrode bank, (iii) external elevator with electrode banks on parallel extension plates, or (iv) elevator operating in surfing mode, in various combinations. Manufacture is aided by printed wiring boards, with interchangeable boards. Assembly with motherboard, spacer block(s), and alignment pins provides efficient distribution of electrode excitations and accurate reproducible positioning.

    Ion Entry/Exit Device
    87.
    发明公开
    Ion Entry/Exit Device 审中-公开

    公开(公告)号：US20230170203A1

    公开(公告)日：2023-06-01

    申请号：US18053916

    申请日：2022-11-09

    Applicant: Micromass UK Limited

    Inventor： Kevin Giles ,  David J. Langridge ,  Jason Lee Wildgoose

    IPC: H01J49/06 ,  H01J49/42 ,  G01N27/623 ,  G01N27/622 ,  H01J49/00

    CPC classification number: H01J49/062 ,  H01J49/422 ,  G01N27/623 ,  G01N27/622 ,  H01J49/061 ,  H01J49/0031 ,  H01J49/408

    Abstract: A method of introducing and ejecting ions from an ion entry/exit device (4) is disclosed. The ion entry/exit device (4) has at least two arrays of electrodes (20,22). The device is operated in a first mode wherein DC potentials are successively applied to successive electrodes of at least one of the electrode arrays ((20,22) in a first direction such that a potential barrier moves along the at least one array in the first direction and drives ions into and/or out of the device in the first direction. The device is also operated in a second mode, wherein DC potentials are successively applied to successive electrodes of at least one of the electrode arrays (20,22) in a second, different direction such that a potential barrier moves along the array in the second direction and drives ions into and/or out of the device in the second direction. The device provides a single, relatively simple device for manipulating ions in multiple directions. For example, the device may be used to load ions into or eject ions from an ion mobility separator in a first direction, and may then be used to cause ions to move through the ion mobility separator in the second direction so as to cause the ions to separate.

    Ion Mass Separation Using RF Extraction
    90.
    发明申请
    Ion Mass Separation Using RF Extraction 审中-公开

    公开(公告)号：US20180218894A1

    公开(公告)日：2018-08-02

    申请号：US15417767

    申请日：2017-01-27

    Applicant: Varian Semiconductor Equipment Associates, Inc.

    Inventor： Alexandre Likhanskii

    IPC: H01J49/22 ,  H01J49/06

    CPC classification number: H01J49/22 ,  H01J49/061

    Abstract: An apparatus which has the capability of filtering unwanted species from an extracted ion beam without the use of a mass analyzer magnet is disclosed. The apparatus includes an ion source having chamber walls that are biased by an RF voltage. The use of RF extraction causes ions to exit the ion source at different energies, where the energy of each ion species is related to its mass. The extracted ion beam can then be filtered using only electrostatic energy filters to eliminate the unwanted species. The electrostatic energy filter may act as a high pass filter, allowing ions having an energy above a certain threshold to reach the workpiece. Alternatively, the electrostatic energy filter may act as a low pass filter, allowing ions having an energy below a certain threshold to reach the workpiece. In another embodiment, the electrostatic energy filter operates as a bandpass filter.

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