Mass spectrometer
US9177775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to prevent lowering of introduction efficiency of ions and to reduce labor for a cleaning operation. In order to solve the above problems, the present invention provides a mass spectrometer where ion introduction hole of an electrode is divided into a first region, a second region, and a third region, a central axis direction of the ion introduction hole in both or either one of the first region and the third region is different from a flow direction axis of the ion inside the ion introduction hole in the second region, and axes of the ion introduction hole in the first region and the third region are in an eccentric position relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.