Mass spectrometer with charge measurement arrangement
US12293908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2020 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Nov 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/422
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mass spectrometer may have an ion source region including an ion generator configured to generate ions from a sample, an ion detector configured to detect ions and produce corresponding ion detection signals, an electric field-free drift region disposed between the ion source region and the ion detector through which the generated ions drift axially toward the ion detector, a plurality of spaced-apart charge detection cylinders disposed in the drift region and through which the ions drifting axially through the drift region pass, and a plurality of charge amplifiers each coupled to a different one of the plurality of charge detection cylinders and each configured to produce a charge detection signal corresponding to a magnitude of charge of one or more of the generated ions passing through a respective one of the plurality of charge detection cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.