Structure of an Electron Multiplier (Discrete-Dynode Type)
Structure of an Electron Multiplier
An electron multiplier consists of many dynodes. Negative voltage is applied to each one by dividing the high voltage applied to the first dynode with resisters. A few secondary electrons are emitted from the first dynode by ion impingement. An electron multiplier is put in an off-axis position to reduce noise signals by direct hit of neutral particles.
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