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Electron beams in Electric Fields

Lets say you were deflecting a beam of electrons in a electric field created by two charged plates. My question is about the fluorescent screen used between the plates to display the beams path. Surely the collision of the electrons with the atoms of the screen (which causes the emitted photons to display their path) would knock the colliding electrons of the beam in various directions, so how is it possible that the single beam is maintained through all the collisions?

Please correct me if anything ive said is wrong! thank you

Reply 1

spiruel

The fluorescent screen would not be between the plates, but rather at the end of the plates. The electron beam deflection could be manipulated using the electric field, and the beam could then make a pattern on the screen.