Figure 1
Conceptual layout of a future ERL phase II machine based on a superconducting main linac and X-ray undulator of up to 25 m in length installed in a single turn-around arc. A laser-driver DC gun plus superconducting (SC) cavity injects beam at between 5 and 15 MeV into a main SC linac. A triple-bend acromat (TBA) lattice plus insertion devices guide and produce the X-rays. The magnetic elements to compress (and decompress) the bunches to ∼100 fs are not shown. After energy recovery, the beam is steered to a low-energy beam dump. |