The Trieste synchrotron light source Elettra

This paper reports that the goal of the Sincrotrone Trieste is to design and to construct a light source optimized for photon energies from undulators in the ultraviolet to soft X-ray region with good tunability over this range and with the capability to accommodate a large number of insertion devices. High spectral brilliance from undulators and high spectral flux from wigglers is required. These design goals can be achieved by a storage ring for electrons or positrons in the energy range from 1.5 to 2 GeV and an emittance ε< 10-8 π mrad. As a compromise between costs and user demands a twelve fold achromat structure with 12 straight sections of 6 meter length has been adopted for Elettra. Due to the high requirements on orbit stability and reproducibility, a full energy injection scheme with a 100 MeV linear preaccelerator and a full energy booster synchrotron has been chosen as the injection system