Electron beam texturing (EBT) is a technology used to apply roughness to the surface of rolling mill cylinders by impinging the surface of these cylinders with a modulated electron beam. The beam locally melts the surface of the cylinder, producing crater-like depressions.
The technology was originally developed by the German company Linotype-Hell for application in the printing industry, but eventually found its successful application in the metal rolling industry, where it is competing with alternative texturing technologies, such as electrodischarge texturing.