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secondary emission

American  

noun

  1. the emission of electrons secondary electrons from a material that is bombarded with electrons or ions.

secondary emission British  

noun

  1. physics the emission of electrons ( secondary electrons ) from a solid as a result of bombardment with a beam of electrons, ions, or metastable atoms: used in electron multipliers

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
secondary emission Scientific  

  1. The emission of electrons or ions from a material, caused by collisions of electrons or other charged particles with the material. Electron multipliers, photomultipliers, and Geiger counters all work by means of secondary emission.

Etymology

Origin of secondary emission

First recorded in 1930–35

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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