Speaker
Description
FERMI has recently completed an early upgrade phase that has significantly extended its operational capabilities and positioned the facility on a clear path toward the future FERMI 2.0 program. The upgrade of the linac has enabled routine operation at increased beam energy, while the FEL-1 beamline can now be operated in EEHG mode with high reliability, complementing the established HGHG performance on both FELs. The introduction of a seed signal at 200 nm, together with a dedicated program of microbunching-instability suppression in the accelerator and transport lines, has markedly improved longitudinal beam quality. As a result, FERMI is already able to explore photon-energy ranges foreseen for the next-generation facility. User-relevant operation has been demonstrated at the nitrogen and oxygen absorption edges, and measurements have confirmed the generation of higher harmonics extending beyond 1 keV. These achievements show that the present machine configuration can access a substantially expanded spectral range, providing an important stepping-stone toward the full FERMI 2.0 upgrade.
| In which format do you inted to submit your paper? | LaTeX |
|---|---|
| Preprint marking on your proceeding paper | I wish my paper to be marked as preprint. |