Dynode

A dynode is an electrode in a vacuum tube that serves as an electron multiplier through secondary emission. The first tube to incorporate a dynode was the dynatron, an ancestor of the magnetron, which used a single dynode. Photomultiplier and video camera tubes generally include a series of dynodes, each at a more positive electrical potential tha...
Found on http://en.wikipedia.org/wiki/Dynode

dynode

(from the article `mass spectrometry`) ...principle of the multiplier is, as the name suggests, a multiplication of the number of electrons emerging from an electrode as compared with the ... ...has a second component that multiplies the number of electrons by a factor of typically 105 or 106. The electron multiplication takes place alo...
Found on http://www.britannica.com/eb/a-z/d/88

dynode

a secondary-emission electrode so placed and operated relative to other electrodes that the number of secondary electrons leaving its surface exceeds the number of primary electrons incident upon it
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=531-21-12

dynode

secondary-emission electrode placed and operated relative to other electrodes so that the number of secondary electrons leaving its surface exceeds the number of primary electrons incident upon it
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=394-30-14

dynode

the anodes which are used to amplify the signal in photomultiplier tubes.
Found on http://www.chemistry-dictionary.com/definition/dynode.php
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