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    • 1. 发明申请
    • ELECTRON CAPTURE DISSOCIATION APPARATUS AND RELATED METHODS
    • 电子捕获装置及相关方法
    • WO2011028450A2
    • 2011-03-10
    • PCT/US2010046201
    • 2010-08-20
    • VARIAN INCWELLS GREGORY J
    • WELLS GREGORY J
    • H01J49/26H01J49/08
    • H01J49/0054
    • An electron capture dissociation apparatus comprises ion guide electrodes, an electron emitter, and an electron control device. The ion guide electrodes are arranged along a central axis and spaced circumferentially to circumscribe an interior space extending along the central axis. The electron emitter is disposed outside the interior space. The electron control device is configured for focusing an electron beam from the electron emitter toward the central axis, along a radial electron beam direction between two of the ion guide electrodes, and for decelerating the electron beam in a DC decelerating field of adjustable voltage potential directed along the electron beam direction.
    • 电子捕获离解装置包括离子导向电极,电子发射体和电子控制装置。 离子导向电极沿着中心轴线布置并且沿圆周方向间隔开以围绕沿着中心轴线延伸的内部空间。 电子发射器设置在内部空间的外部。 电子控制装置被构造成沿着两个离子导向电极之间的径向电子束方向将来自电子发射体的电子束朝向中心轴聚焦,并且用于在可调电压电位定向的DC减速场中减速电子束 沿着电子束方向。
    • 2. 发明申请
    • CHARGE CONTROL FOR IONIC CHARGE ACCUMULATION DEVICES
    • 离子充电累积装置的充电控制
    • WO2009079222A2
    • 2009-06-25
    • PCT/US2008/085576
    • 2008-12-04
    • VARIAN, INCWELLS, Gregory, J.
    • WELLS, Gregory, J.
    • H01J49/10H01J49/26H01J49/02G01N27/62
    • H01J49/4265H01J49/0031H01J49/067
    • A method for controlling charge flux into a charge accumulation device includes determining a charge accumulation time during which charges are to be accumulated in the charge accumulation device, measuring a charge flux of a first ion beam produced from an ion source, determining a target number of charges to be accumulated in the charge accumulation device during the charge accumulation time based on the measured charge flux and, based on the determined target number of charges, modulating a second ion beam produced from the ion source to cause the target number of charges from the second ion beam to be accumulated in the charge accumulation device during the charge accumulation time. An ion processing device is configured for controlling the charge flux. An ion beam modulator modulates the ion beam.
    • 一种用于控制电荷累积装置的电荷通量的方法包括:确定在电荷累积装置中积累电荷的电荷累积时间,测量从离子源产生的第一离子束的电荷通量, 基于测量的电荷通量在电荷累积时间期间积累在电荷累积装置中的电荷,并且基于确定的电荷的目标数量,调制由离子源产生的第二离子束,以使来自 第二离子束在电荷累积时间期间积聚在电荷累积装置中。 离子处理装置被配置为用于控制电荷通量。 离子束调制器调制离子束。
    • 3. 发明申请
    • LINEAR ION TRAP APPARATUS AND METHOD UTILIZING AN ASYMMETRICAL TRAPPING FIELD
    • 线性离子阱装置和利用不对称捕获场的方法
    • WO2005119738A3
    • 2006-12-07
    • PCT/US2005017549
    • 2005-05-19
    • VARIAN INCWELLS GREGORY J
    • WELLS GREGORY J
    • H01J49/42
    • H01J49/423
    • A linear ion trap includes four electrodes and operates with an asymmetrical trapping field in which the center of the trapping field is displaced from a geometrical center of the trap structure. The asymmetrical trapping field can include a main AC potential providing a quadrupole component and an additional AC potential. The main AC potential is applied between opposing pairs of electrodes and the additional AC potential is applied across one pair of electrodes. The additional AC potential can add a dipole component for rendering the trapping field asymmetrical. The additional AC potential can also add a hexapole component used for nonlinear resonance. A supplementary AC potential can be applied across the same pair of electrodes as the additional AC potential to enhance resonant excitation. The operating point for ejection can be set such that a pure resonance condition can be used to increase the amplitude of ion oscillation preferentially in one direction. Ions trapped in the composite field can be mass-selectively ejected in a single direction to an aperture in one of the electrodes.
    • 线性离子阱包括四个电极,并且以非对称捕获场操作,其中俘获场的中心从陷阱结构的几何中心位移。 不对称捕获场可以包括提供四极组件和附加AC电位的主AC电势。 主交流电势被施加在相对的电极对之间,并且附加的交流电位被施加在一对电极之间。 附加的交流电位可以添加偶极子分量,以使捕获场不对称。 附加的交流电位还可以添加用于非线性共振的六极分量。 辅助交流电位可以作为额外的交流电位施加在同一对电极上,以增强谐振激励。 可以设置喷射的工作点,使得可以使用纯共振条件来优先在一个方向上增加离子振动的振幅。 捕获在复合场中的离子可以沿单个方向质量选择性地喷射到一个电极中的孔。
    • 6. 发明申请
    • CHARGE CONTROL FOR IONIC CHARGE ACCUMULATION DEVICES
    • 离子电荷积累装置的电荷控制
    • WO2009079222A3
    • 2009-09-24
    • PCT/US2008085576
    • 2008-12-04
    • VARIAN INCWELLS GREGORY J
    • WELLS GREGORY J
    • H01J49/10G01N27/62H01J49/02H01J49/26
    • H01J49/4265H01J49/0031H01J49/067
    • A method for controlling charge flux into a charge accumulation device includes determining a charge accumulation time during which charges are to be accumulated in the charge accumulation device, measuring a charge flux of a first ion beam produced from an ion source, determining a target number of charges to be accumulated in the charge accumulation device during the charge accumulation time based on the measured charge flux and, based on the determined target number of charges, modulating a second ion beam produced from the ion source to cause the target number of charges from the second ion beam to be accumulated in the charge accumulation device during the charge accumulation time. An ion processing device is configured for controlling the charge flux. An ion beam modulator modulates the ion beam.
    • 一种用于控制进入电荷积累装置的电荷通量的方法包括:确定电荷积聚时间,在该时间期间电荷将被积聚在电荷积累装置中;测量由离子源产生的第一离子束的电荷通量; 基于所测量的电荷通量在电荷积累时间期间累积在电荷积累装置中的电荷,并且基于所确定的目标电荷数量,调制从离子源产生的第二离子束以使来自 第二离子束在电荷积累时间期间积聚在电荷积累装置中。 离子处理装置被配置用于控制电荷通量。 离子束调制器调制离子束。
    • 7. 发明申请
    • ELECTRON SOURCE FOR IONIZATION WITH LEAKAGE CURRENT SUPPRESSION
    • 用于泄漏电流抑制的电子源
    • WO2007070500A3
    • 2008-04-17
    • PCT/US2006047342
    • 2006-12-12
    • VARIAN INCWELLS GREGORY JMARQUETTE EDWARD G
    • WELLS GREGORY JMARQUETTE EDWARD G
    • H01J49/14H01J3/02H01J49/08
    • H01J49/14H01J3/024H01J49/08
    • An electron source includes a first electrode, a second electrode, a thermionic element interposed between and electrically isolated from the first electrode and the second electrode, and a guard electrode interposed between and electrically isolated from the first electrode and the second electrode. The thermionic element and the guard electrode may be at substantially the same voltage. Another electron source includes a first electrode, a second electrode, a thermionic element interposed between and electrically isolated from the first electrode and the second electrode, and a thermal expansion component interposed between and electrically isolated from the first electrode and the second electrode. The thermal expansion component may be heated to cause expansion. The heating may be cycled to cause alternating expansion and contraction.
    • 电子源包括插入在第一电极和第二电极之间并且与第一电极和第二电极电绝缘的第一电极,第二电极和热电离元件,以及插入在第一电极和第二电极之间并与之电隔离的保护电极。 热离子元件和保护电极可以处于基本上相同的电压。 另一个电子源包括介于第一电极和第二电极之间并与之电绝缘的第一电极,第二电极和热电离元件,以及介于第一电极和第二电极之间并与之电隔离的热膨胀组件。 热膨胀部件可能被加热以引起膨胀。 可以循环加热以引起交替的膨胀和收缩。
    • 8. 发明申请
    • LINEAR ION TRAP APPARATUS AND METHOD UTILIZING AN ASYMMETRICAL TRAPPING FIELD
    • 线性离子阱装置和利用不对称捕获场的方法
    • WO2005119738A2
    • 2005-12-15
    • PCT/US2005/017549
    • 2005-05-19
    • VARIAN, INC.WELLS, Gregory, J.
    • WELLS, Gregory, J.
    • H01J49/42
    • H01J49/423
    • A linear ion trap includes four electrodes and operates with an asymmetrical trapping field in which the center of the trapping field is displaced from a geometrical center of the trap structure. The asymmetrical trapping field can include a main AC potential providing a quadrupole component and an additional AC potential. The main AC potential is applied between opposing pairs of electrodes and the additional AC potential is applied across one pair of electrodes. The additional AC potential can add a dipole component for rendering the trapping field asymmetrical. The additional AC potential can also add a hexapole component used for nonlinear resonance. A supplementary AC potential can be applied across the same pair of electrodes as the additional AC potential to enhance resonant excitation. The operating point for ejection can be set such that a pure resonance condition can be used to increase the amplitude of ion oscillation preferentially in one direction. Ions trapped in the composite field can be mass-selectively ejected in a single direction to an aperture in one of the electrodes.
    • 线性离子阱包括四个电极,并且以非对称捕获场操作,其中俘获场的中心从陷阱结构的几何中心位移。 不对称捕获场可以包括提供四极组件和附加AC电位的主AC电势。 主交流电位被施加在相对的电极对之间,并且附加的交流电位被施加在一对电极之间。 附加的交流电位可以增加偶极子分量,以使捕获场不对称。 附加的交流电势也可以添加用于非线性共振的六极分量。 辅助交流电位可以跨越同一对电极施加,作为附加的交流电位,以增强谐振激励。 可以设置喷射的工作点,使得可以使用纯共振条件来优先在一个方向上增加离子振动的振幅。 捕获在复合场中的离子可以沿单个方向质量选择性地喷射到一个电极中的孔。