Author: Welsch, C.P.
Paper Title Page
TUP01
Beam Tracking Studies of Electron Cooling in ELENA  
 
  • J. Resta-López, J.R. Hunt, B. Veglia, C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
 
  The Extra Low ENergy Antiproton storage ring (ELENA), which is a new small synchrotron currently being commissioned at CERN, will further decelerate antiprotons from the Antiproton Decelerator (AD) from 5.3 MeV to energies as low as 100 keV and provide high quality beams for antimatter experiments. At such unprecedented low energy, it is important to evaluate the long term beam stability. To provide a consistent explanation of the different physical effects acting on the beam, multi-particle and multi-turn tracking simulations have been performed in the ELENA ring, including electron cooling and different scattering effects under realistic assumptions. The effect of several imperfections in the electron cooling process is also analysed. The aim is to make a comparison with measurements, thus obtaining a full characterisation of the beam evolution in ELENA.  
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TUP02
Emittance Measurement of Cooled Beams  
 
  • J. Resta-López, J.R. Hunt, B. Veglia, C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
 
  Precise emittance measurements are essential to guarantee optimum beam control and performance in all kind of accelerator machines. Amongst them, ultra-low energy antiproton and ion facilities, where beam cooling is essential, are not an exception. In these machines, the emittance reconstruction techniques have to face several challenges, e.g. asymmetric beams, long beam profile tails, diffusion and space charge effects. In addition, likely in a strongly cooled beam there will appear a high correlation between momentum offset and transverse emittance. In this contribution, we investigate effective reconstruction algorithms based in scraping techniques in presence of the above effects. Simulation results are presented for the case of the Extra Low ENergy Antiproton storage ring (ELENA), which is currently being commissioned at CERN.  
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