The CEBAF Superconducting Accelerator - An Overview

The CEBAF accelerator is a CW linac based on RF superconductivity and making use of multiple recirculation.Its major components are a 50 MeV injector, two linacs segments of 0.5 GeV energy gain each, and recirculator arcs connecting the two linac segments.Each linac segment consists of 25 cryomodules, separated by warm sections with quadrupoles, steering magnets, and beam diagnostics.Each cryomodule contains 8, 1500 MHz, 5-cell, Cornell type cavities with waveguide couplers for fundamental power and HOM damping, each cavity being powered by its own klystron.Recirculator arcs are vertically stacked, large radius, strong focusing beam lines that minimize synchrotron radiation effects.A high quality (delta-E/E~10&-4, Xi ~ 10^-9 m) beam of 200 micro-amp, 100% duty factor, with 0.5 GeV < E < 4.0 GeV will be generated