The commissioning of the first stage of FERMI@Elettra (FEL-1) has started on 6 July 2009. By fall 2010, it is our aim to generate out of the LINAC an electron beam as similar as possible to the one needed for achieving the nominal (i.e., user-required) FEL performance. Such a beam will be injected into the undulator chain and used to get the first FEL light. In this paper, we present our strategy for the commissioning of the FEL process, both in SASE and seeded configurations. On the basis of start-to-end simulations, we also discuss the expected FEL performance for day-one operation.
COBISS.SI-ID: 1334779
The second stage of the FERMI FEL, named FEL-2, is based on the principle of high-gain harmonic generation. Recent developments stimulated a revision of the original setup, which was designed to cover the spectral range between 40 and 10 nm. The numerical simulations we present here show that the nominal (expected) electron-beam performance allows extension of the FEL spectral range down to 4 nm. We also show that the proposed setup is flexible enough for exploiting future developments of new seed sources, e.g., high harmonic generation in gases.
COBISS.SI-ID: 1335547