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Title: Storage-ring Electron Cooler for Relativistic Ion Beams

Abstract

Application of electron cooling at ion energies above a few GeV has been limited due to reduction of electron cooling efficiency with energy and difficulty in producing and accelerating a high-current high-quality electron beam. A high-current storage-ring electron cooler offers a solution to both of these problems by maintaining high cooling beam quality through naturally-occurring synchrotron radiation damping of the electron beam. However, the range of ion energies where storage-ring electron cooling can be used has been limited by low electron beam damping rates at low ion energies and high equilibrium electron energy spread at high ion energies. This paper reports a development of a storage ring based cooler consisting of two sections with significantly different energies: the cooling and damping sections. The electron energy and other parameters in the cooling section are adjusted for optimum cooling of a stored ion beam. The beam parameters in the damping section are adjusted for optimum damping of the electron beam. The necessary energy difference is provided by an energy recovering SRF structure. A prototype linear optics of such storage-ring cooler is presented.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Muons Inc., Batavia, IL (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1286004
Report Number(s):
JLAB-ACP-16-2303; DOE/OR/23177-3886
DOE Contract Number:  
AC05-06OR23177; AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: IPAC'16, 08-13 May 2016. Busan, Korea
Country of Publication:
United States
Language:
English

Citation Formats

Lin, Fanglei, Derbenev, Yaroslav, Douglas, David R., Guo, Jiquan, Johnson, Rolland P., Krafft, Geoffrey A., Morozov, Vasiliy, and Zhang, Yuhong. Storage-ring Electron Cooler for Relativistic Ion Beams. United States: N. p., 2016. Web. doi:10.18429/JACoW-IPAC2016-WEPMW020.
Lin, Fanglei, Derbenev, Yaroslav, Douglas, David R., Guo, Jiquan, Johnson, Rolland P., Krafft, Geoffrey A., Morozov, Vasiliy, & Zhang, Yuhong. Storage-ring Electron Cooler for Relativistic Ion Beams. United States. https://doi.org/10.18429/JACoW-IPAC2016-WEPMW020
Lin, Fanglei, Derbenev, Yaroslav, Douglas, David R., Guo, Jiquan, Johnson, Rolland P., Krafft, Geoffrey A., Morozov, Vasiliy, and Zhang, Yuhong. 2016. "Storage-ring Electron Cooler for Relativistic Ion Beams". United States. https://doi.org/10.18429/JACoW-IPAC2016-WEPMW020. https://www.osti.gov/servlets/purl/1286004.
@article{osti_1286004,
title = {Storage-ring Electron Cooler for Relativistic Ion Beams},
author = {Lin, Fanglei and Derbenev, Yaroslav and Douglas, David R. and Guo, Jiquan and Johnson, Rolland P. and Krafft, Geoffrey A. and Morozov, Vasiliy and Zhang, Yuhong},
abstractNote = {Application of electron cooling at ion energies above a few GeV has been limited due to reduction of electron cooling efficiency with energy and difficulty in producing and accelerating a high-current high-quality electron beam. A high-current storage-ring electron cooler offers a solution to both of these problems by maintaining high cooling beam quality through naturally-occurring synchrotron radiation damping of the electron beam. However, the range of ion energies where storage-ring electron cooling can be used has been limited by low electron beam damping rates at low ion energies and high equilibrium electron energy spread at high ion energies. This paper reports a development of a storage ring based cooler consisting of two sections with significantly different energies: the cooling and damping sections. The electron energy and other parameters in the cooling section are adjusted for optimum cooling of a stored ion beam. The beam parameters in the damping section are adjusted for optimum damping of the electron beam. The necessary energy difference is provided by an energy recovering SRF structure. A prototype linear optics of such storage-ring cooler is presented.},
doi = {10.18429/JACoW-IPAC2016-WEPMW020},
url = {https://www.osti.gov/biblio/1286004}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2016},
month = {Sun May 01 00:00:00 EDT 2016}
}

Conference:
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