On-axis electron impact ion source
US6998622B1 · kind B1 · utility
39Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron impact ion source includes an ionization chamber in which a first rf multipole field can be generated and an ion guide positioned downstream from the ionization chamber in which a second rf multipole field can be generated wherein electrons are injected into the ionization chamber along the axis (on-axis) to ionize an analyte sample provided to the ionization chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.