RF gun
The electron gun is the starting point of particles to be accelerated. The electron gun and the cathode system are critical components for stable intensity and high-average power of the electron beam. The basic gun design envisioned (see illustration) provides short bunches of beam and thus low current losses. It also employs features of other successful RF and SRF guns. An integrated electron gun is also key to a compact design. The cathode shown is a thermionic cartridge cathode, but the assembly is removable, allowing us to test other cathode technologies.
