GENERAL PERFORMANCES OF THE INJECTION SCHEME INTO THE SOLEIL STORAGE RING

The injection scheme of the electron beam into the SOLEIL Storage Ring is presented. It corresponds to the new SOLEIL optics : 12 meter long straight section, 2.75 GeV energy, with in addition, the requirement for top-up injection mode. Pulsed magnets are described, and in particular the eddy current septum magnet, the transverse position of which can be adjusted to optimise the Touschek beam lifetime. Tracking of particles has been performed over a large number of turns, taking into account the magnet errors, the high chromaticities and the physical apertures all along the machine (limited vertical apertures due to low undulator gaps). Statistical efficiency of the injection has been deduced. Specific requirements for top-up injection have been examined, such as a perfect closure of the injection bump, the residual vertical field and the leakage fields from septa.