secondary emission

noun
1.
the emission of electrons (secondary electrons) from a material that is bombarded with electrons or ions.
Origin
1930-35
Examples from the web for secondary emission
  • The electrons quickly multiply through secondary emission.
  • secondary emission is the emission of electrons from a material when bombarded by primary electrons.
  • The high electron energy causes secondary emission effects.
  • The cost effectiveness of adding secondary controls can be illustrated by looking at two types of secondary emission control.
British Dictionary definitions for secondary emission

secondary emission

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
secondary emission in Science
secondary emission  
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.