发明名称 |
RF quadrupole systems with potential gradients |
摘要 |
The invention relates to two-dimensional quadrupole systems along whose axis an axial DC field is superimposed. The invention involves coating the hyperbolic or cylindrical surfaces of quadrupole systems with thin insulating layers and metal films thereupon and generating axial potential gradients or saddle ramps using appropriate electrical supply of DC potentials and superimposed RF voltages to the metal films. Systems of this type can be used in a plurality of ways, ranging from mass filters with high transmission to fragmentation cells with extremely low ion losses.
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申请公布号 |
US2005274887(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20050090316 |
申请日期 |
2005.03.25 |
申请人 |
BRUKER DALTONIK GMBH |
发明人 |
WEISS GERHARD;FRANZEN JOCHEN;STOEMER CARSTEN |
分类号 |
B01D59/44;G21K1/093;H01J37/141;H01J49/04;H01J49/06;H01J49/42;H01J49/44;(IPC1-7):B01D59/44 |
主分类号 |
B01D59/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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