Focusing ion guiding apparatus and mass spectrographic analysis apparatus
US10020179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Nov 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A focusing ion guiding apparatus includes: at least one ion guiding inlet and ion guiding outlet connected to each other via a transport axial line; at least one group of focusing electrode structures comprising at least one smooth and non-concave focusing electrode or focusing electrode array to which a focusing voltage is applied, the focusing electrode structure causing the ions transported in the apparatus to be radially focused for many times under the action of a focusing electric field formed by the focusing electrode structure; and a neutral gas flow transported in the axial direction, a diffusion path of the gas flow in an at least partially radial direction relative to the axial direction being blocked by the focusing electrode or its bearing substrate to increase a transport velocity of the gas flow in the axial direction and reduce retention or turbulence of the transported ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.