In its simplest form, an electron beam gun consists of a source of electrons (a hot filament) that are accelerated using a high voltage power supply.
The accelerated electrons are then focussed using electro magnetic force and diverted through an angle of 270Â° using a permanent magnet into a crucible where the isotopic material is ready for evaporation.
The electron beam gun in the laboratory is built up of the following components
This has been built into an Edwards 306 coating rig along with a Maxtec ASF 140 oscillating quartz sensor head to monitor the deposition rate and thickness. It is connected to a Maxtec MDC 360 deposition controller.