BriXSinO: An innovative accelerator towards energy sustainability and advanced applications with mono-chromatic X-rays and coherent high-power THz radiation.

BriXSinO is a demonstrator of a new acceleration mechanism -- two way in the same Linac ({à $la$ MariX), pursuing at the same time research of beam and machine operation in E.R.L. (Energy Recovery Linac) mode, following the original Maury Tigner's configuration of opposite way, dog-bone recirculation. BriXSinO's mission is the demonstration of high peak and average brightness beam generation, acceleration and manipulation with large energy sustainability, as requested by the high-intensity frontier. Energy sustainability implies developing accelerators with large efficiency in transforming AC power into electron beam power: BriXSinO aims at achieving efficiencies larger than $20%$. Besides such a primary mission, that is in the mainstream of future strategies for large-scale particle accelerators, BriXSinO will offer unique radiation beams to users of X-rays and THz at LASA, thanks to the very large expected electron beam power/brightness. The challenge is to generate, accelerate, manipulate, characterize, deliver to users and recover back beam power of about $250 {kW}$, at the same time reaching the high phase space density requested by the Compton source and the THz FEL operation.