Author: Peschke, C.
Paper Title Page
MOPPD005 Stochastic Cooling of Antiprotons in the Collector Ring at FAIR 376
 
  • C. Dimopoulou, A. Dolinskii, F. Nolden, C. Peschke, M. Steck
    GSI, Darmstadt, Germany
 
  In order to reach the required luminosities for the experiments at FAIR, the hot secondary beams (antiprotons or rare isotopes) emerging from the production targets will be efficiently collected and phase-space cooled in the large-acceptance Collector Ring (CR), which is equipped with pertinent stochastic cooling systems. Simulations of the system performance are underway in parallel with the finalization of the system design. After an overview of the CR stochastic cooling systems, simulation results for antiproton cooling in the bandwidth 1-2 GHz are presented. The CERN Fokker-Planck code is used for momentum cooling and an analytical model based on "rms" theory for the simultaneous betatron cooling. In the focus is the comparison between the time of flight and the notch filter momentum cooling methods. The results are essential for system optimization as well as input for the users of the CR-precooled beams i.e. the HESR.