Author: Nissen, E.W.
Paper Title Page
WEXAUD03
 Space Charge and CSR Microwave Physics in a Circulated Electron Cooler  
 
  • R. Li, S.V. Benson, Y.S. Derbenev, D. Douglas, C. Tennant, Y. Zhang
    JLab, Newport News, Virginia, USA
  • E.W. Nissen
    CERN, Geneva, Switzerland
  • C.-Y. Tsai
    Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
  
  Funding: This work is supported by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177.
Circulator cooler ring (CCR) was proposed * as a scheme to alleviate the high demand for the average current of the cooling beam from the electron source. However, transporting the high-brightness cooling beam through CCR for multiple turns, while preserving the phase space quality of the beam, presents significant challenges for the CCR design **. In this presentation, we describe our studies on the microbunching instability (uBI) induced by the CSR and longitudinal space charge interactions, and present results of microwave physics for a non-magnetized beam circulating in an early design of CCR *** of MEIC. It is envisioned that CCR designed for a magnetized beam will have much reduced microbunching effects. A future plan for such study will be discussed.
* R. Brinkmann, et al., Proc. of EPAC98, p345 (1998)
** C. Tennant and D. Douglas, JLAB-TN-12-027 (2012)
*** C. Tsai et al., this workshop (2015)
 
slides icon Slides WEXAUD03 [2.848 MB]  
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