Preamplifier for charged particle detection
US9097806B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2014 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Mar 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45621
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A preamplifier is provided for correction of overshoot or undershoot effects present in a signal received from a charged particle detection electrode. The preamplifier is ground-isolated from the charged particle detection electrode and comprises: a main amplification stage, configured to receive and amplify the isolated signal; a feed-forward stage, configured to generate a compensation signal from the amplified ground-isolated signal, the compensation signal being generated to mirror the overshoot or undershoot effects; and an output, arranged to provide an output signal that is a combination of the amplified ground-isolated signal and the compensation signal. A charged particle detection arrangement comprising the preamplifier is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.