Abstract
The multireflection ion traps with isochronous properties offer a Lot of opportunities for time-of-flight mass spectrometry by elongation of the ion path, thus preserving the compact dimensions of an instrument. We have built and tested a two-mirror linear trap that provides at least 80,000 mass-resolving power. Although the mass resolution appears promising, there are substantial limitations that arise from Coulomb interactions of the trapped ions. Among these, the mutual repulsion of ions with same or close mass-to-charge ratios appears dominant, resulting in counterintuitive motion synchronization. The self-bunching and coalescence effects are also examined by numerical simulation.
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