PTR Electron Beam Generator
In the beam generator the electrons are emitted from a wolfram cathode accelerated by 60 to 175 kV to about 2/3 of the speed of light and then focused on the work piece into a beam with high power intensity. The electrons are slowed down here and the beam energy is converted into heat.
Power flux intensities of approximately more than 1 kW/mm2 lead to spontaneous vaporization of the material with the corresponding deep weld effect. PTR electron beam generators reach power flux densities of more than 100 kW/mm2 and therefore feature another field of application for electron beam technology.