Electron-temperature control by movable pins installed in a hollow cathode for discharge plasmas

Publisher Website
Google Scholar
Abstract
In order to control electron energy distributions in discharge plasmas, we have developed a new hollow cathode with pins inside. With an increase in the pin length, the electron temperature is observed to decrease continuously by an order of magnitude, being accompanied by a change of local plasma structure, in weakly magnetized low‐pressure Ar dc discharge plasmas.