Ion entry/exit device
US9984861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2015 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/408
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of introducing and ejecting ions from an ion entry/exit device is disclosed. The ion entry/exit device has at least two arrays of electrodes. The device is operated in a first mode wherein DC potentials are successively applied to successive electrodes of at least one of the electrode arrays in a first direction such that a potential barrier moves along the at least one array in the first direction and drives ions into and/or out of the device in the first direction. The device is also operated in a second mode, wherein DC potentials are successively applied to successive electrodes of at least one of the electrode arrays in a second, different direction such that a potential barrier moves along the array in the second direction and drives ions into and/or out of the device in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.