Ion Mobility Measurement With Segmented Ion Beam Modulation

The ion beam is segmented into multiple smaller bunches rather than using a single large bunch. This segmentation allows the system to maintain high total throughput while limiting the number of ions in each bunch, thereby preventing coulombic broadening and preserving resolution. The ion gate divides the continuous ion beam into discrete temporal segments, each containing a manageable number of ions.

The ion gate operates with periodic opening and closing cycles, creating a rhythmic insertion pattern of ion bunches. This periodic action allows the system to accumulate high throughput over time while ensuring that each individual bunch remains sufficiently small to avoid coulombic interactions that would degrade resolution. The periodic gating creates regular intervals between bunch insertions.

The ion beam is divided into multiple smaller bunches inserted at different times. This segmentation ensures that each bunch contains enough ions to maintain good signal strength for accurate measurement, while the temporal separation prevents detector saturation. The detector processes each bunch independently, maintaining linear response across all measurements.

The ion gate continuously processes ions over an extended period, maintaining uninterrupted measurement capability. By continuously inserting multiple small bunches rather than occasional large bunches, the system maintains steady-state detector operation away from saturation, ensuring consistent measurement accuracy while achieving high throughput through continuous processing.

The ion gate operates with periodic opening and closing cycles, creating a rhythmic insertion pattern of ion bunches. This periodic action allows the system to maintain simple single-pulse measurement methodology while achieving high throughput through continuous periodic operation. The regular gating pattern enables rapid sequential measurements without complex timing requirements.

The system transitions from intermittent single pulse measurements to continuous periodic measurements. The ion gate continuously cycles through open and closed states, maintaining uninterrupted ion beam modulation. This continuous operation eliminates dead time between measurements, dramatically increasing throughput while preserving the simplicity of single-pulse mobility determination through correlation analysis.

The ion beam is segmented into multiple temporal bins or segments during the modulation cycle. This segmentation creates fine-grained time resolution that preserves mobility information while enabling high throughput through parallel processing of multiple segments. The segmentation allows correlation analysis to distinguish between ions of different mobilities even as throughput increases.

The system transforms the measurement from a single-time-point observation to a multi-dimensional time-resolved measurement. By modulating the ion beam through multiple temporal dimensions and using correlation analysis, the system achieves both high throughput and high resolution. The additional temporal dimension allows simultaneous separation of ions by mobility and maintenance of high ion throughput.