Electron Multiplier in electrons detection

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SUMMARY

The discussion centers on the application of discrete electron multipliers, specifically dynodes, for electron detection. The user successfully utilized the dynodes for positive ion detection and seeks to adapt the same setup for electrons without altering the power supply configuration (-2 kV on the first dynode and 0 V on the last). The inquiry focuses on whether the removed reflector electrode can be repurposed as a conversion dynode and the appropriate voltage to apply for this modification.

PREREQUISITES
  • Understanding of electron multipliers and dynode operation
  • Knowledge of high-voltage power supply configurations
  • Familiarity with voltage divider circuits
  • Basic principles of electron detection technologies
NEXT STEPS
  • Research the role of conversion dynodes in electron multipliers
  • Explore voltage requirements for dynode configurations in electron detection
  • Investigate the impact of reflector electrodes on electron multiplier performance
  • Learn about resistor voltage divider circuits and their application in dynode biasing
USEFUL FOR

Researchers and engineers in the fields of particle detection, electronics, and instrumentation, particularly those working with electron multipliers and high-voltage applications.

Ravaner
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Hello. I used discrete electron multiplier (dynodes) for positive ions detection, and it works fine. Now I want to use it for electrons detection with no changes in mode of connecting power supply (-2 kV on 1st dynode, 0 V on last one) . In the past application I don't use the reflector electrode (removed) may I use it as conversion dynode ? With which kind of voltage applied ?
 
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thanks for your reply. In fact my question is about the use of reflector electrode as conversion dynode.
 

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