Discrete dynode detector with dynamic gain control
US9293307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2014 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | May 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A novel electron multiplier that regulates in real time the gain of downstream dynodes as the instrument receives input signals is introduced. In particular, the methods, electron multiplier structures, and coupled control circuits of the present invention enable a resultant on the fly control signal to be generated upon receiving a predetermined threshold detection signal so as to enable the voltage regulation of one or more downstream dynodes near the output of the device. Accordingly, such a novel design, as presented herein, prevents the dynodes near the output of the instrument from being exposed to deleterious current pulses that can accelerate the aging process of the dynode structures that are essential to the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.