Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition
US6747271B2 · kind B2 · utility
32Cited by
3References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
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.