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An electrode used in certain electron tubes to provide secondary emission.

[Greek dunamis, power; see dynamic + -ode.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(General Physics) an electrode onto which a beam of electrons can fall, causing the emission of a greater number of electrons by secondary emission. They are used in photomultipliers to amplify the signal
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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The detector was mounted vertically, the cathode to anode voltage was equal to +600 V dc, the dynode to dynode was +80 V dc, the cathode to dynode was +150 V dc, and the total weight was 1.8 kg.
The application EPC technology by using zinc oxide (ZnO) nanoparticles immobilized on zinc (Zn) sheet-copper electrode, and lamp emitting dynode (LED) ultraviolet-A (UV-A) lamp for the treatment of pathogenic strains of Pseudomonas aeruginosa were reported (Kashi, 2015).
The 6470 features an ion detector with a high-energy conversion dynode and low nose characteristics, promoting more efficient positive and negative ion detection and mass range; and powerful MassHunter data handling software, including triggered MRM, which helps increase analytical confidence.
The detector consists of an assembly formed by a thallium-activated sodium iodide crystal (NaI(Tl) 2"x2") connected to a photomultiplier, a light guide, a voltage divider, a resistor divider, a dynode, and a preamplifier.
With all the homework and car adjustments that the E&B Crew Chief Brownie Brown did, the car ran numbers 18% higher than the dynode session.
Ion detection was by secondary electron multiplier, the ions hit a conversion dynode and the electrons produced were amplified in an electron multiplier which can operate in either counting or analog mode.
Mass Resolution 20,000 FWHM 1000 for m/z = 1000 0.05 FWHM (full width half maximum) with Ultra ZoomScan ADC Dectection System MCP--MicroChannel Conversion dynode Plate + electron multiplier Ion Source MALDI Electron Impact Electrospray Ionization Mass Accuracy >1 ppm RMS in High Unit mass resolution [+ or -] 0.1 Da Resolution Mode Dimensions N/A 54 in.
Most GC-MS instruments employ two types of electron multipliers: continuous dynode types and discrete dynode types.
For comparison purposes, the sixth light guide was affixed to a Burle 8850 2 inch PMT which has a higher gain first dynode. The energy detector's light guide was attached to a Burle 8854 5 inch PMT.
Makeup artist Dynode Marcie said be was in a tuxedo and waiting for
The target was introduced into the source region of an unmodified Thermo Bioanalyis Vision 2000 MALDI-TOF operated in reflectron mode with 5 and 20 kV on the target and conversion dynode, respectively.