Ion mirror for a time-of-flight mass spectrometer
US5077472A · kind A · utility
12Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Jul 10, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/405
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ion mirror for a time-of-flight mass spectrometer comprises a monopole electrode structure which operates at d.c. voltage. This electrode structure defines a field region in which an incident ion experiences an electrostatic reflecting force having a magnitude proportional to the separation of the ion from where it entered the field region or from where the ion exits the field region, if the latter separation is smaller. The ion occupies the field region for a time interval related to its mass but not its energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.