FACET-II: High-energy high-intensity electron beams for experimental science

FACET-II is an Office of Science National User Facility. This talk will present an overview of the facility and the science being carried out at FACET-II. FACET-II provides beams optimized for the next generation of Plasma Wakefield Acceleration experiments and is the only facility in the world capable of providing 10 GeV electron beams in support of accelerator science R&D. It allocates roughly half of the beam time towards investigating plasma wakefield acceleration in support of the R&D roadmaps defined in the DOE Advanced Accelerator Development Strategy Report. Primary elements of this program include demonstration of a 10 GeV plasma stage with preserved beam quality, development of ultra-high brightness beams from plasma-based injectors and developing high-intensity X-ray and Gamma-ray sources. The other half is dedicated to a diverse set of research programs enabled by high-energy high-intensity electron beams and their interaction with lasers, plasmas and solids. Novel diagnostics to characterize the extreme beams are being developed combining beam-physics, machine learning and artificial intelligence. Upgrades to the 10 TW experimental laser systems are under development to exploit the full scientific potential of the facility.