Subrelativistic electron source for Dielectric Laser Acceleration, elements of design

Abstract

We describe and discuss solutions for an innovating sub-relativistic electron source, based on pulsed DC gun, including linear (1D) Field Emitter Array (FEA) associated immediately with Laser Dielectric Accelerator (DLA) stage. That setup is designed to avoid any standard accelerator component (electrostatic or magnetic macroscopic dipole ...) Parts of the diagnostics, including spectrometer and all diagnostics, are planned to rely on nano-structures. Then the entire setup -pulsed source, laser and measurements ends excepted- should be enclosed inside a decimeter range vacuum chamber. The goal of that paper is to suggest experimental orientations, which are discussed inside our laboratory. However we shall also notice the theoretical issues among which we actually work, these one could be presented in a next work.