cathode rays

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Related to cathode rays: Anode rays

cath·ode rays

a stream of electrons emitted from the negative electrode (cathode) in a Crookes tube; their bombardment of the anode or the glass wall of the tube gives rise to x-rays.
References in periodicals archive ?
He placed certain chemicals, known to fluoresce easily, inside a cathode ray tube, surrounded it by dark paper, and darkened the room to observe the pale fluorescence that would result.
Lenard studied these open-air cathode rays and received a Nobel Prize in physics in 1905 as a result.
From the amount of the deflection, Thomson could work out the ratio of the electric charge of the cathode ray particle to its mass.