We Can Figure This Out.org
Virtual Lab: Projection Electron Lithography (SCALPEL)
University of Virginia
             
 
© 2003-Present, John C. Bean
 
The electron gun acts as the source of electrons. It consists off an emitter (filament), grid cylinder and anode.

The filament emits electrons when heated to a very high temperature. It is heated by passing a current through the filament.

These electrons are then drawn downward by an electric field. They are focused into a beam by a electrostatic field.

 
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