An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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secondary emission
  گسیل ِ دومان  
gosil-e dovomân
Fr.: émission secondaire  

The emission of → secondary electrons from the surface of a material when an incident particle (often, charged particle such as electron or ion) impacts the material with sufficient energy.

See also: → secondary; → emission.