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Amatuni, G.A.

Paper Title Page
WE5RFP010 Low-Alpha Operation of the SLS Storage Ring 2285
 
  • 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.

  
FR5PFP064 Analysis of Decoherence Signals at the SLS Storage Ring 4458
 
  • K. Manukyan
    YSU, Yerevan
  • G.A. Amatuni, A. Sargsyan, V.M. Tsakanov
    CANDLE, Yerevan
  • M. Böge, A. Streun
    PSI, Villigen
  
 

An online measurement of the beam energy spread is based on the analysis of the decoherence/recoherence signals obtained from the beam position monitors after a single turn beam excitation by a pinger magnet. Furthermore the analysis allows calibration of the model in terms of higher order chromaticities and amplitude dependant tune shifts. An analytical model including 1st and 2nd order chromaticities and amplitude dependant tune shift will be presented.