Compact very high resolution time-of flight mass spectrometer
US6828553B2 · kind B2 · utility
9Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2003 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/408
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a compact time-of-flight mass spectrometer which enables very accurate mass determinations. The invention consists of a method of producing a high resolution by means of a long flight path, where the ion beam repeatedly sweeps a figure of eight in two opposed cylindrical capacitors, each of 254.56°, and the linear ion beam paths between the cylindrical capacitors are extended virtually by a change in potential so as to cause a time focusing with respect to an initial energy spread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.