Figure 2
Expected range of application with different sources. The dotted mesh (A, A′, C, E, E′, E′′) defines quasi-continuous sources, the continuous-line mesh defines continuous sources (B, D), the light gray mesh defines pulsed solid-state lasers (F, J, J′, K, K′, L, L′), the rhombohedral mesh `hot' FELs (G, G′, G′′, H, H′) and the white fill indicates superconducting FELs (I). A, A′: synchrotron beamline. B: helium lamp. C: quasi-CW VUV laser. D: electron gun. E′, E′′: femtoslicing synchrotron beamline. F: table-top laser 4HG. G: LCLS hard-X FEL. G′: SACLA hard-XFEL. G′′: LCLS self-seeding. H: Fermi FEL-1 (seeded). H′: Fermi FEL-2 (seeded, cascaded). I: FLASH FEL (SASE). J, K, J′, K′: high-power HHG laser (fluctuations inferred from L). L, L′: mid-power HHG laser (for which shot-to-shot fluctuations were accurately measured). |