sekundaarelektronkatood, fotokordistites, mõnedes elektronlampides jm. seadistes kasutatav elektrood, mille pinnast elektronidega pommitamisel väljub ajaühikus rohkem elektrone, kui sinna sisse tungib
intermediate electrode (between cathode and final anode) in photomultiplier or electron multiplier tube. Dynode electrons are those which emit secondary electrons and provide the amplification.
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