Ion resonance excitation operation method and device by applying a quadrupolar electric field combined with a dipolar electric field
US10991568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Aug 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/4285
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ion resonance excitation operation method and device by applying a quadrupolar electric field combined with a dipolar electric field. The method includes applying a main RF to any pair of plates of the ion trap mass analyzer, and applying a quadrupolar excitation signal to any pair of plates, and applying a reverse phase dipolar excitation signal to any pair of plates. Also provided is an ion resonance excitation operation method and device by using a quadrupolar electric field combined with a dipolar electric field, which includes applying a positive main RF to a pair of electrode rods of the quadrupole, and applying a negative main RF to the other pair of electrode rods; applying a quadrupolar excitation signal to any pair of electrode rods, applying a reverse phase dipolar excitation signal to any pair of electrode rods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.