Ion trap with spatially extended ion trapping region
US9425035B2 · kind B2 · utility
12Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2012 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/422
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mass or mass to charge ratio selective ion trap is disclosed which directs ions into a small ejection region. A RF voltage acts to confine ions in a first (y) direction within the ion trap. A DC or RF voltage acts to confine ions in a second (x) direction. A quadratic DC potential well acts to confine ions in a third (z) direction within the ion trap. The profile of the quadratic DC potential well progressively varies along the second (x) direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.