Patent ID: 9627190
Date: 2017-04-18
CPC Classifications: H01J

Claim:
1. A time-of-flight mass spectrometry (TOF-MS) system, comprising: an ion source; a TOF analyzer comprising an ion accelerator, a flight region, and an ion detector comprising a plurality of channels; an ion dispersion device configured for dispersing ions from the ion source into a plurality of spatially separated ion beams based on different kinetic energies of the ions, wherein ions of different kinetic energies travel in the flight region in spatially separated flight paths and respective channels are aligned with the flight paths; and a computing device configured for: receiving an ion measurement signal from the ion detector corresponding to detection of an ion; determining a time of flight and a kinetic energy of the ion based on the ion measurement signal; and calculating a mass of the ion by applying a mass calibration function based on the time of flight, the kinetic energy, and one or more instrument-dependent calibration constants.