Multi-pressure stage mass spectrometer and methods
US9343280B2 · kind B2 · utility
6Cited by
13References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2008 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mass spectrometer includes a plurality of guide stages for guiding ions between an ion source and an ion detector along a guide axis. Each of the guide stages is contained within one of a plurality of adjacent chambers. Pressure in each of the plurality of chambers is reduced downstream along the guide axis to guide ions along the axis. Each guide stage may further include a plurality of guide rods for producing a containment filed for containing ions about the guide axis, as they are guided to the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.