Combined chemical/biological agent mass spectrometer detector
US7045777B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mass spectrometer including an ion source, a detector, a first end cap electrode arranged proximate to the ion source, a second end cap electrode arranged proximate the detector, and a ring electrode arranged between the first and the second end cap electrodes. The ring electrode can be either connected to a radio-frequency voltage source or to a constant voltage source. When the ring electrode is connected to the radio-frequency voltage the first end cap, the second end cap and the ring electrode form an ion trap and the mass spectrometer operates as an ion trap mass spectrometer. When the ring electrode is connected to a constant voltage the mass spectrometer operates as a time-of-flight mass spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.