Mass spectrometer
US5864137A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Oct 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/164
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a mass spectrometer having improved mass resolution, accuracy, sensitivity, reduced complexity, lower cost, and greater ease of use. The mass spectrometer provided comprises a first electrode and a second electrode, in a nested configuration to create a two-stage acceleration region that accelerates ions across a minimized acceleration region, resulting in decreased metastable decay and improved mass accuracy and resolution. The mass spectrometer also comprises a n alignment system to align the ion optics with the laser beam used for desorption/ionization. The mass spectrometer further comprises electrical circuits for delivering high voltage pulses for pulsed delayed ion extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.