Anode rays, also known as canal rays, are a type of positively charged particle beam observed in a discharge tube. They were discovered by Eugen Goldstein in 1886. Anode rays are produced when a high-voltage electrical discharge passes through a low-pressure gas, resulting in the ionization of the gas.
Articles by others on the same topic
A stream of positive ions in a gas discharge. Historical canal rays pass through holes in the cathode; collisions can also produce moving neutral chemical atoms.