Author: Bergan, W.F.
Paper Title Page
S202
Cooling and Diffusion Rates in Coherent Electron Cooling Concepts  
 
  • S. Nagaitsev, V.A. Lebedev
    Fermilab, Batavia, Illinois, USA
  • W.F. Bergan, E. Wang
    BNL, Upton, New York, USA
  • G. Stupakov
    SLAC, Menlo Park, California, USA
 
  We present analytic cooling and diffusion rates for a simplified model of coherent electron cooling (CEC), based on a proton energy kick at each turn. This model also allows to estimate analytically the rms value of electron beam density fluctuations in the "kicker" section. Having such analytic expressions should allow for better understanding of the CEC mechanism, and for a quicker analysis and optimization of main system parameters. Our analysis is applicable to any CEC amplification mechanism, as long as the wake (kick) function is available.  
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P2008 Improvements to Simulations of Microbunched Electron Cooling for the EIC 103
 
  • W.F. Bergan
    BNL, Upton, New York, USA
 
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.
Microbunched electron cooling (MBEC) is a promising new technique for cooling dense hadron beams. It operates by copropagating the hadron beam with a beam of electrons, during which time the hadrons induce an energy modulation on the electrons. This is amplified, turned into a density modulation, and acts back on the hadrons in order to give them energy kicks which tend to reduce their initial energy spread and emittance. We plan to use this technique to cool the proton beams at the Electron-Ion Collider (EIC). In order to better understand the process, we have expanded on our simulation codes of cooling times and saturation effects, allowing us to explore such issues as variable Courant-Snyder parameters within the lattice elements.
 
poster icon Poster P2008 [3.518 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2021-P2008  
About • paper received ※ 25 October 2021       paper accepted ※ 22 November 2021       issue date ※ 10 November 2021  
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