Time of flight mass spectrometer
US10249482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2015 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Dec 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A time of flight mass spectrometer that includes a first electrode; and a second electrode that is spaced apart from the first electrode. The ion source is configured to apply voltages to the first and second electrodes to produce an electric field in a region between the first and second electrodes so as to influence ions present in the region between the first and second electrodes when the mass spectrometer is in use. A shield is formed on the first electrode and/or second electrode. The shield is configured to inhibit an electric field formed between edges of the first and second electrodes from penetrating into the region between the first and second electrodes when the mass spectrometer is in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.