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    Mass filter having extended operational lifetime
    1.
    发明授权
    Mass filter having extended operational lifetime 有权

    公开(公告)号：US10453667B2

    公开(公告)日：2019-10-22

    申请号：US15578053

    申请日：2016-05-31

    申请人： Micromass UK Limited

    发明人： Martin Green ,  Jason Wildgoose ,  Keith Richardson ,  Kevin Giles ,  Daniel Kenny ,  David Langridge ,  Richard Moulds

    IPC分类号： H01J49/42 ,  H01J49/06

    摘要： A mass filter is disclosed having at least one electrode (42-48) comprising an aperture (43) or recess. Voltages are applied to the electrodes (42-48) of the mass filter such that ions having mass to charge ratios in a desired range are confined by the electrodes and are transmitted along and through the mass filter, whereas ions (47,49) having mass to charge ratios outside of said desired range are unstable and pass into the aperture (43) or recess such that they are filtered out by the mass filter. The aperture (43) or recess reduces or eliminates the number of ions that would otherwise impact the electrode surface facing the ion transmission axis and hence reduces degradation of the ion transmission properties of the mass filter.

    ION GUIDE ASSEMBLY HAVING MULTIPLE ION GUIDES
    2.
    发明公开
    ION GUIDE ASSEMBLY HAVING MULTIPLE ION GUIDES 审中-公开

    公开(公告)号：US20230162964A1

    公开(公告)日：2023-05-25

    申请号：US17906548

    申请日：2021-03-19

    申请人： Micromass UK Limited

    发明人： Jason Wildgoose ,  Darren Hewitt ,  Matthew Collier ,  Oliver Malpas

    IPC分类号： H01J49/06 ,  G01N27/622

    CPC分类号： H01J49/065 ,  G01N27/622 ,  H01J49/067 ,  H01J49/068

    摘要： An ion guide assembly (2) is disclosed comprising: two planar mounting components (4); and first and second ion guides (6,8) mounted on the two planar mounting components such that the ion guides are spaced apart from each other, wherein at least one of the planar mounting components has an aperture (14) therethrough that is located between the positions on said at least one mounting component at which the first and second ion guides are mounted; and an ion optical device sized and configured to be inserted through the aperture in the planar mounting component and into the space between the first and second ion guides.

    Imaging mass spectrometer
    3.
    发明授权
    Imaging mass spectrometer 有权

    公开(公告)号：US10593533B2

    公开(公告)日：2020-03-17

    申请号：US15776704

    申请日：2016-11-16

    申请人： Micromass UK Limited ,  LECO CORPORATION

    发明人： John Brian Hoyes ,  Anatoly Verenchikov ,  Mikhail Yavor ,  Keith Richardson ,  Jason Wildgoose

    IPC分类号： H01J49/40 ,  H01J49/00 ,  H01J49/06

    摘要： A time-of-flight mass spectrometer is disclosed comprising: an ion deflector (305) configured to deflect ions to different positions in a first array of positions at different times; a position sensitive ion detector (187); and ion optics (180) arranged and configured to guide ions from the first array of positions to the position sensitive detector (187) so as to map ions from the first array of positions to a second array of positions on the position sensitive detector (187); wherein the ion optics includes at least one ion mirror for reflecting the ions.

    CHARACTERISATION OF HIGH MASS PARTICLES
    4.
    发明公开
    CHARACTERISATION OF HIGH MASS PARTICLES 审中-公开

    公开(公告)号：US20240044841A1

    公开(公告)日：2024-02-08

    申请号：US18259012

    申请日：2021-12-23

    申请人： Micromass UK Limited

    发明人： Jakub Ujma ,  David Langridge ,  Jason Wildgoose ,  Keith Richardson ,  Kevin Giles

    IPC分类号： G01N27/623

    CPC分类号： G01N27/623

    摘要： A method of analysing high-mass (>1 MDa) particles comprises ionising particles to as to produce ions, separating the ions according to mass to charge ratio by passing the ions through an ion separation device in which one or more time-varying electric fields is used to urge ions through a gas such that ions are separated according to mass to charge ratio, measuring the transit time of the ions through the ion separation device, and determining a drift time or mass to charge ratio distribution of the ions therefrom. The method further comprises identifying one or more charge envelopes in the drift time or mass to charge ratio distribution, and using the one or more charge envelopes to characterise the particles.

    MASS FILTER HAVING EXTENDED OPERATIONAL LIFETIME
    5.
    发明申请
    MASS FILTER HAVING EXTENDED OPERATIONAL LIFETIME 审中-公开

    公开(公告)号：US20200075308A1

    公开(公告)日：2020-03-05

    申请号：US16563203

    申请日：2019-09-06

    申请人： Micromass UK Limited

    发明人： Martin Green ,  Jason Wildgoose ,  Keith Richardson ,  Kevin Giles ,  Daniel Kenny ,  David Langridge ,  Richard Moulds

    IPC分类号： H01J49/42 ,  H01J49/06

    摘要： A mass filter is disclosed having at least one electrode (42-48) comprising an aperture (43) or recess. Voltages are applied to the electrodes (42-48) of the mass filter such that ions having mass to charge ratios in a desired range are confined by the electrodes and are transmitted along and through the mass filter, whereas ions (47,49) having mass to charge ratios outside of said desired range are unstable and pass into the aperture (43) or recess such that they are filtered out by the mass filter. The aperture (43) or recess reduces or eliminates the number of ions that would otherwise impact the electrode surface facing the ion transmission axis and hence reduces degradation of the ion transmission properties of the mass filter.

    Mass filter having extended operational lifetime
    9.
    发明授权
    Mass filter having extended operational lifetime 有权

    公开(公告)号：US10832900B2

    公开(公告)日：2020-11-10

    申请号：US16563203

    申请日：2019-09-06

    申请人： Micromass UK Limited

    发明人： Martin Green ,  Jason Wildgoose ,  Keith Richardson ,  Kevin Giles ,  Daniel Kenny ,  David Langridge ,  Richard Moulds

    IPC分类号： H01J49/42 ,  H01J49/06

    摘要： A mass filter is disclosed having at least one electrode (42-48) comprising an aperture (43) or recess. Voltages are applied to the electrodes (42-48) of the mass filter such that ions having mass to charge ratios in a desired range are confined by the electrodes and are transmitted along and through the mass filter, whereas ions (47,49) having mass to charge ratios outside of said desired range are unstable and pass into the aperture (43) or recess such that they are filtered out by the mass filter. The aperture (43) or recess reduces or eliminates the number of ions that would otherwise impact the electrode surface facing the ion transmission axis and hence reduces degradation of the ion transmission properties of the mass filter.