Author: Kayran, D.
Paper Title Page
TUZD5 Experience and Challenges with Electron Cooling of Colliding Ion Beams in RHIC 325
 
  • A.V. Fedotov, X. Gu, D. Kayran, J. Kewisch, S. Seletskiy
    BNL, Upton, New York, USA
 
  Funding: Work supported by the U.S. Department of Energy.
Electron cooling of ion beams employing rf-accelerated electron bunches was successfully used for the RHIC physics program in 2020 and 2021 and was essential in achieving the required luminosity goals. This presentation will summarize experience and challenges with electron cooling of colliding ion beams in RHIC. We also outline ongoing studies using rf-based electron cooler LEReC.
 
slides icon Slides TUZD5 [1.373 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD5  
About • Received ※ 02 August 2022 — Accepted ※ 04 August 2022 — Issue date ※ 14 September 2022  
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TUZE5 Studies of Ion Beam Heating by Electron Beams 343
 
  • S. Seletskiy, A.V. Fedotov, D. Kayran
    BNL, Upton, New York, USA
 
  Presence of an electron beam created by either electron coolers or electron lenses in an ion storage ring is associated with an unwanted emittance growth (heating) of the ion bunches. In this paper we report experimental studies of the electron-ion heating in the Low Energy RHIC electron Cooler (LEReC).  
slides icon Slides TUZE5 [1.368 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZE5  
About • Received ※ 01 August 2022 — Revised ※ 09 August 2022 — Accepted ※ 10 August 2022 — Issue date ※ 17 September 2022
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WEPA78 Proton-Electron Focusing in EIC Ring Electron Cooler 820
 
  • S. Seletskiy, A.V. Fedotov, D. Kayran, J. Kewisch
    BNL, Upton, New York, USA
 
  The Electron Ion Collider (EIC) requires a cooling of protons at the top energy. The Ring Electron Cooler (REC) is a suitable option for such a cooling. In this paper we consider an effect of a proton-electron space charge (SC) focusing on the quality of the electron beam in the REC. We show that, with properly adjusted parameters of the Ring Electron Cooler, the SC focusing in the REC cooling section does not significantly affect the cooler performance.  
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-WEPA78  
About • Received ※ 02 August 2022 — Revised ※ 03 August 2022 — Accepted ※ 09 August 2022 — Issue date ※ 20 August 2022
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