Electron bunchers for industrial RF linear accelerators: theory and design guide

Abstract The acceleration of electrons in resonant linear accelerators (linacs) typically consists three main stages: (1) emission the from cathode and their pre-acceleration with a DC field to energy tens keV; (2) grouping electron beam into bunches synchronization correct phase high-frequency electromagnetic fields, (3) accelerating relativistic required energies. Although many books describe theoretical practical aspects linac design, most them concentrate on physics either gun stage or regime, while leaving description bunching process rather general. non-relativistic motion is described literature ion accelerators, but practice, it cannot be scaled machines due significantly different particle mass rate, velocity change, frequencies. In this tutorial review paper, we will fill gap detailed provide advice design sections industrial-grade linacs.