A collaboration is underway to develop and demonstrate GW-level power generation in the sub-THz frequency range. Two key components--wakefield structure and electron bunch train--were prepared for the demonstration. A 5-cm long corrugated structure was fabricated using two thin metallic plates with through-holes of different inner diameters. The plates were fabricated by lithography and bonded...
The Advanced Wakefield (AWAKE) experiment is a proof-of-principle accelerator facility at CERN (Geneva, Switzerland). Proton bunches from the CERN Super Proton Synchrotron are used to drive wakefields in 10 metres of laser-ionised rubidium plasma, over which externally injected 19 MeV electrons are accelerated. Run 1 of AWAKE successfully demonstrated the self-modulation of the long proton...
The Hefei Advanced Light Facility (HALF), currently under construction, aims to be state-of-the-art diffraction-limited storage ring light source with a full-energy injector. A grid-controlled electron gun has been chosen as the electron source for HALF. The simulation of the electron source revealed that when using a pulser with width about 1 ns, the parasitic pulses reduce to 8.70%,...
