Orthogonal Acceleration Coaxial Cylinder Time of Flight Mass Analyser
    2.
    发明申请
    Orthogonal Acceleration Coaxial Cylinder Time of Flight Mass Analyser 有权
    正交加速同轴气缸时间质量分析仪

    公开(公告)号:US20150170897A1

    公开(公告)日:2015-06-18

    申请号:US14401722

    申请日:2013-05-16

    IPC分类号: H01J49/40

    摘要: A Time of Flight mass analyser is disclosed comprising an annular ion guide having a longitudinal axis and comprising a first annular ion guide section and a second annular ion guide section. Ions are introduced into the first annular ion guide section so that the ions form substantially stable circular orbits within the first annular ion guide section about the longitudinal axis. The ions are then orthogonally accelerated ions from the first annular ion guide section into the second annular ion guide section. An ion detector is disposed within the annular ion guide and has an ion detecting surface arranged in a plane which is substantially perpendicular to the longitudinal axis.

    摘要翻译: 公开了一种飞行时间质量分析器,其包括具有纵向轴线的环形离子引导件,并且包括第一环形离子引导部分和第二环形离子引导部分。 离子被引入到第一环形离子引导部分中,使得离子在第一环形离子引导部分内围绕纵向轴线形成基本上稳定的圆周轨道。 然后离子是从第一环形离子引导部分到第二环形离子引导部分的正交加速离子。 离子检测器设置在环形离子引导件内并且具有布置在基本上垂直于纵向轴线的平面中的离子检测表面。

    Orthogonal Acceleration Coaxial Cylinder Time of Flight Mass Analyser
    3.
    发明申请
    Orthogonal Acceleration Coaxial Cylinder Time of Flight Mass Analyser 有权
    正交加速同轴气缸时间质量分析仪

    公开(公告)号:US20150136970A1

    公开(公告)日:2015-05-21

    申请号:US14401683

    申请日:2013-05-16

    IPC分类号: H01J49/40 H01J49/00

    摘要: A Time of Flight mass analyser is disclosed comprising an annular ion guide having a longitudinal axis and comprising a first annular ion guide section and a second annular ion guide section. Ions are introduced into the first annular ion guide section so that the ions form substantially stable circular orbits within the first annular ion guide section about the longitudinal axis. An ion detector is disposed within the annular ion guide. Ions are orthogonally accelerated in a first axial direction from the first annular ion guide section into the second annular ion guide section. An axial DC potential is maintained along at least a portion of the second annular ion guide section so that the ions are reflected in a second axial direction which is substantially opposed to the first axial direction. The ions undergo multiple axial passes through the second annular ion guide section before being detected by the ion detector.

    摘要翻译: 公开了一种飞行时间质量分析器,其包括具有纵向轴线的环形离子引导件,并且包括第一环形离子引导部分和第二环形离子引导部分。 离子被引入到第一环形离子引导部分中,使得离子在第一环形离子引导部分内围绕纵向轴线形成基本上稳定的圆周轨道。 离子检测器设置在环形离子引导件内。 离子在从第一环形离子引导部到第二环状离子引导部的第一轴向正交加速。 沿着第二环形离子引导部分的至少一部分保持轴向DC电位,使得离子在基本上与第一轴向方向相对的第二轴向反射。 在被离子检测器检测到之前,离子经过多个轴向通过第二环形离子引导部分。

    Orthogonal acceleration coaxial cylinder time of flight mass analyser

    公开(公告)号:US09978577B2

    公开(公告)日:2018-05-22

    申请号:US15670518

    申请日:2017-08-07

    IPC分类号: H01J49/40 H01J49/00

    摘要: A Time of Flight mass analyzer is disclosed comprising an annular ion guide having a longitudinal axis and comprising a first annular ion guide section and a second annular ion guide section. Ions are introduced into the first annular ion guide section so that the ions form substantially stable circular orbits within the first annular ion guide section about the longitudinal axis. An ion detector is disposed within the annular ion guide. Ions are orthogonally accelerated in a first axial direction from the first annular ion guide section into the second annular ion guide section. An axial DC potential is maintained along at least a portion of the second annular ion guide section so that the ions are reflected in a second axial direction which is substantially opposed to the first axial direction. The ions undergo multiple axial passes through the second annular ion guide section before being detected by the ion detector.

    Orthogonal Acceleration Coaxial Cylinder Time of Flight Mass Analyser

    公开(公告)号:US20180047556A1

    公开(公告)日:2018-02-15

    申请号:US15670518

    申请日:2017-08-07

    IPC分类号: H01J49/40 H01J49/00

    摘要: A Time of Flight mass analyser is disclosed comprising an annular ion guide having a longitudinal axis and comprising a first annular ion guide section and a second annular ion guide section. Ions are introduced into the first annular ion guide section so that the ions form substantially stable circular orbits within the first annular ion guide section about the longitudinal axis. An ion detector is disposed within the annular ion guide. Ions are orthogonally accelerated in a first axial direction from the first annular ion guide section into the second annular ion guide section. An axial DC potential is maintained along at least a portion of the second annular ion guide section so that the ions are reflected in a second axial direction which is substantially opposed to the first axial direction. The ions undergo multiple axial passes through the second annular ion guide section before being detected by the ion detector.

    METHOD AND APPARATUS TO MITIGATE RIPPLE IN A TIME OF FLIGHT (TOF) SYSTEM
    6.
    发明申请
    METHOD AND APPARATUS TO MITIGATE RIPPLE IN A TIME OF FLIGHT (TOF) SYSTEM 审中-公开
    在飞行时间(TOF)系统中减轻纹波的方法和装置

    公开(公告)号:US20150308949A1

    公开(公告)日:2015-10-29

    申请号:US14698978

    申请日:2015-04-29

    IPC分类号: G01N21/55 H05B37/02 G01J1/46

    摘要: The disclosure provides a circuit to mitigate ripple. The circuit includes a controller that generates a PWM (pulse width modulated) clock signal. A DC/DC converter receives the PWM clock signal, and generates an output signal. A light source is coupled to the DC/DC converter, and receives the output signal. The light source transmits light pulses during an integration time. A time integral of the output signal during the integration time is constant during a plurality of quad time periods.

    摘要翻译: 本公开提供了一种减轻纹波的电路。 该电路包括产生PWM(脉宽调制)时钟信号的控制器。 DC / DC转换器接收PWM时钟信号,并产生输出信号。 光源耦合到DC / DC转换器,并接收输出信号。 光源在积分时间内传输光脉冲。 积分时间期间的输出信号的时间积分在多个四倍时间段期间是恒定的。

    Orthogonal acceleration coaxial cylinder time of flight mass analyser

    公开(公告)号:US09728391B2

    公开(公告)日:2017-08-08

    申请号:US14401683

    申请日:2013-05-16

    IPC分类号: H01J49/40 H01J49/00

    摘要: A Time of Flight mass analyzer is disclosed comprising an annular ion guide having a longitudinal axis and comprising a first annular ion guide section and a second annular ion guide section. Ions are introduced into the first annular ion guide section so that the ions form substantially stable circular orbits within the first annular ion guide section about the longitudinal axis. An ion detector is disposed within the annular ion guide. Ions are orthogonally accelerated in a first axial direction from the first annular ion guide section into the second annular ion guide section. An axial DC potential is maintained along at least a portion of the second annular ion guide section so that the ions are reflected in a second axial direction which is substantially opposed to the first axial direction. The ions undergo multiple axial passes through the second annular ion guide section before being detected by the ion detector.

    ION GROUP IRRADIATION DEVICE, SECONDARY ION MASS SPECTROMETER, AND SECONDARY ION MASS SPECTROMETRY METHOD
    8.
    发明申请
    ION GROUP IRRADIATION DEVICE, SECONDARY ION MASS SPECTROMETER, AND SECONDARY ION MASS SPECTROMETRY METHOD 审中-公开
    离子组辐射装置,二次离子质谱仪和二次离子质谱方法

    公开(公告)号:US20140374585A1

    公开(公告)日:2014-12-25

    申请号:US14296973

    申请日:2014-06-05

    IPC分类号: H01J49/14 H01J49/00 H01J49/44

    摘要: The present invention provides an ion group irradiation device for irradiating a sample with an ion group, comprising: an ion group selecting unit configured to select, from ions released from an ion source, at least two ion groups formed of ions having different average masses; and a primary ion irradiation unit configured to irradiate the sample with the at least two ion groups selected by the ion group selecting unit, wherein the ion group selecting unit selects at least one ion group and further selects the at least two ion groups from each of the selected at least one ion group.

    摘要翻译: 本发明提供了一种用于对离子基团照射样品的离子组照射装置,包括:离子组选择单元,被配置为从离子源释放的离子中选择由具有不同平均质量的离子形成的至少两个离子基; 以及初级离子照射单元,被配置为用所述离子群选择单元选择的所述至少两个离子群照射所述样品,其中所述离子选择单元选择至少一个离子基团,并且还从所述离子组中选择所述至少两个离子基团 所选择的至少一个离子基团。

    METHODS AND SYSTEMS FOR TIME-OF-FLIGHT X-RAY TOMOGRAPHY

    公开(公告)号:US20170219501A1

    公开(公告)日:2017-08-03

    申请号:US15416948

    申请日:2017-01-26

    IPC分类号: G01N23/203 A61B6/00 A61B6/03

    摘要: A system for Time-of-Flight tomography includes an x-ray source capable of producing pulsed x-rays with a pulse duration of about 100 ps or faster, a single-photon detector configured to detect individual photons backscattered from an object when present and illuminated by the x-ray source, the single-photon detector producing a two-dimensional image, and a processor for determining a Time-of-Flight of an individual photon from the x-ray source and backscattered by the object to the single-photon detector. Operating the system pulsing at 100 picosecond or faster, pulsing the x-ray source at least once to illuminate at least part of an object, detecting via a detector one or more individual backscattered photons from the object, and determining a length of time for an individual backscattered photon to travel from the x-ray source to the photon detector.