Ion detector
US7141785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Jul 10, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J43/246
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ion detector for a mass spectrometer is disclosed comprising a microchannel plate 8 which receives ions 12 at an input surface and releases electrons 16 from an output surface. A detecting device is arranged to receive at least some of the electrons 16 emitted from the microchannel plate 8. The detecting device receives electrons 16 on a first portion of the detecting device at a first time t1 and receives electrons 16 on a second different portion of the detector at a second later time t2. Time-varying electric and/or magnetic fields are applied between the microchannel plate 8 and the detecting device to guide electrons 16 emitted from the microchannel plate onto different regions of the detecting device in a time varying manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.