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公开(公告)号:US5625186A
公开(公告)日:1997-04-29
申请号:US620035
申请日:1996-03-21
申请人: Vladimir E. Frankevich , Manish H. Soni , Mario Nappi , Robert E. Santini , Jonathan W. Amy , Robert G. Cooks
发明人: Vladimir E. Frankevich , Manish H. Soni , Mario Nappi , Robert E. Santini , Jonathan W. Amy , Robert G. Cooks
IPC分类号: H01J49/42
CPC分类号: H01J49/424 , H01J49/027
摘要: The invention relates to an ion trap mass spectrometer of the type having an ion trapping volume defined by spaced end caps and a ring electrode. The ion trap includes a small sensing electrode which senses characteristic motion of ions trapped in said trapping volume and provides an image current. Ions are excited into characteristic motion by application of an excitation pulse to the trapped ions. The invention also relates to a method of operating such an ion trap.
摘要翻译: 本发明涉及一种离子阱质谱仪,其具有由间隔开的端盖和环形电极限定的离子捕获体积。 离子阱包括小的感测电极,其感测捕获在所述捕集体积中的离子的特征运动并提供图像电流。 离子通过向捕获的离子施加激发脉冲而被激发成特征运动。 本发明还涉及一种操作这种离子阱的方法。