Modeling of tip evolution of point cathode for numerical analysis of high brightness electron gunTo study the operating characteristics of a high brightness electron gun, the modeling of the tip evolution of a point cathode was combined with the electric field solver using the surface charge method....
Point cathode electron gun using electron bombardment for cathode tip heatingA new type of point cathode electron gun has been developed....
Local heating of point cathode: numerical calculations of temperature distribution and cathode shape variation by evaporationWhen the tip of a point cathode is locally heated by a laser or electron beam irradiation to a high temperature below the melting point, the cathode can be operated at a fairly high emission current...
Numerical analysis of bombarding electron trajectories in an electron-heated point cathode gunAn electron-heated point cathode gun has been studied for the development of a high brightness gun with a long cathode life....
