Assertion: cathode | /r/HasProperty | cold
Facets:
Source sentences:
text: A cold cathode is a cathode that is not electrically heated by a filament.[note 1] A cathode may be considered "cold" if it emits more electrons than can be supplied by thermionic emission alone.
text: The latter method of driving electron emission is known as field electron emission, and the cathodes involved are called cold cathodes.