Assertion: cathode's electron | /r/CapableOf | leave the cathode
Facets:
value: by thermionic emission and field emission
type: OTHER
value: in an arc discharge
type: TEMPORAL
value: in slightly different directions
type: MANNER
Source sentences:
text: An electron that leaves the cathode will collide with neutral gas molecules.
text: The result is for each electron that leaves the cathode, several positive ions are generated that eventually crash onto the cathode.
text: The discharge is self-sustaining when for each electron that leaves the cathode, enough positive ions hit the cathode to free, on average, another electron.
text: By controlling the number of electrons by the anode and hence the focusing anode ensures that electrons leaving the cathode in slightly different directions are focused down to a narrow beam and all arrive at the same spot on the screen.
text: In a glow discharge, the carrier generation process reaches a point where the average electron leaving the cathode allows another electron to leave the cathode.
text: In a glow discharge, the carrier generation process reaches a point where the average electron leaving the cathode allows another electron to leave the cathode.
text: In an arc discharge, electrons leave the cathode by thermionic emission and field emission, and the gas is ionized by thermal means.
text: Electrons leave the cathode with an energy of about 1 eV, which is not enough to ionize or excite atoms, leaving a thin dark layer next to the cathode.