• A. Streun, M. Böge, N. Milas, F. Müller, V. Schlott, H. Sigg
  PSI, Villigen
• G.A. Amatuni, D. Gishyan, K. Manukyan, A. Sargsyan
  CANDLE, Yerevan

Recently tentative top-up operation of the Swiss Light Source (SLS) storage ring at low momentum compaction factor has been started. We will present an analysis of the longitudinal dynamics and simulations of the injection process, and explain our method to ensure closed orbit stability. First experimental results will be shown and compared to the model predictions.