dynode

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dynode

[′dī‚nōd]
(electronics)
An electrode whose primary function is secondary emission of electrons; used in multiplier phototubes and some types of television camera tubes. Also known as electron mirror.
References in periodicals archive ?
The noise is then reduced to unavoidable dark currents due to the amplifying voltage between the cathode and the dynodes.
The electrons are amplfied (caused to increase in number) by a chain of dynodes in process called "stimulated emission," producing a "shower" of electrons that makes an electrical pulse.