Virtual ion trap

Radiant energy – Ionic separation or analysis – Cyclically varying ion selecting field means

Reexamination Certificate

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Details

C250S282000, C250S290000, C250S291000, C250S288000, C250S283000

Reexamination Certificate

active

11805789

ABSTRACT:
A virtual ion trap that uses electric focusing fields instead of machined metal electrodes that normally surround the trapping volume, wherein two opposing surfaces include a plurality of uniquely designed and coated electrodes, and wherein the electrodes can be disposed on the two opposing surfaces using plating techniques that enable much higher tolerances to be met than existing machining techniques.

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patent: 2003/0089847 (2003-05-01), Guervremont et al.
patent: WO 01/69217 (2001-09-01), None
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Stephen A. Lammert et al., Improved Performance Obtained On The Toroid Ion Trap Mass Analyzer Using Asymmetric Electrodes, 1998, Oak Ridge, Tennessee.

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