Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisitions
US7291834B2 · kind B2 · utility
5Cited by
19References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Sep 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A detection scheme for time-of-flight mass spectrometers is described that extends the dynamic range of spectrometers that use counting techniques while avoiding the problems of crosstalk. It is well known that a multiple anode detector capable of detecting different fractions of the incoming particles may be used to increase the dynamic range of a TOFMS system. However, crosstalk between the anodes limits the amount by which the dynamic range may be increased. The present invention overcomes limitations imposed by crosstalk by using either a secondary amplification stage or by using different primary amplification stages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.