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Title: IBS in a CAM-Dominated Electron Beam

Abstract

Electron cooling of the 8.9 GeV/c antiprotons in the Recycler ring requires high-quality dc electron beam with the current of several hundred mA and the kinetic energy of 4.3 MeV. That high electron current is attained through beam recirculation (charge recovery). The primary current path is from the magnetized cathode at high voltage terminal to the ground, where the electron beam interacts with the antiproton beam and cooling takes place, and then to the collector in the terminal. The energy distribution function of the electron beam at the collector determines the required collector energy acceptance. Multiple and single intra-beam scattering as well as the dissipation of density micro-fluctuations during the beam transport are studied as factors forming a core and tails of the electron energy distribution. For parameters of the Fermilab electron cooler, the single intra-beam scattering (Touschek effect) is found to be of the most importance.

Authors:
; ;  [1];  [2]
  1. Fermi National Accelerator Laboratory, P. O. Box 500, Batavia IL 60543 (United States)
  2. Novosibirsk State University, Novosibirsk, 630090 (Russian Federation)
Publication Date:
OSTI Identifier:
20798390
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 821; Journal Issue: 1; Conference: COOL05: International workshop on beam cooling and related topics, Galena, IL (United States), 18-23 Sep 2005; Other Information: DOI: 10.1063/1.2190105; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ANTIPROTON BEAMS; BEAM CURRENTS; BEAM DYNAMICS; BEAM OPTICS; BEAM TRANSPORT; CATHODES; ELECTRON BEAMS; ELECTRON COOLING; ENERGY SPECTRA; FERMILAB; FLUCTUATIONS; GEV RANGE; SCATTERING

Citation Formats

Burov, A., Nagaitsev, S., Shemyakin, A., and Gusachenko, I. IBS in a CAM-Dominated Electron Beam. United States: N. p., 2006. Web. doi:10.1063/1.2190105.
Burov, A., Nagaitsev, S., Shemyakin, A., & Gusachenko, I. IBS in a CAM-Dominated Electron Beam. United States. doi:10.1063/1.2190105.
Burov, A., Nagaitsev, S., Shemyakin, A., and Gusachenko, I. Mon . "IBS in a CAM-Dominated Electron Beam". United States. doi:10.1063/1.2190105.
@article{osti_20798390,
title = {IBS in a CAM-Dominated Electron Beam},
author = {Burov, A. and Nagaitsev, S. and Shemyakin, A. and Gusachenko, I.},
abstractNote = {Electron cooling of the 8.9 GeV/c antiprotons in the Recycler ring requires high-quality dc electron beam with the current of several hundred mA and the kinetic energy of 4.3 MeV. That high electron current is attained through beam recirculation (charge recovery). The primary current path is from the magnetized cathode at high voltage terminal to the ground, where the electron beam interacts with the antiproton beam and cooling takes place, and then to the collector in the terminal. The energy distribution function of the electron beam at the collector determines the required collector energy acceptance. Multiple and single intra-beam scattering as well as the dissipation of density micro-fluctuations during the beam transport are studied as factors forming a core and tails of the electron energy distribution. For parameters of the Fermilab electron cooler, the single intra-beam scattering (Touschek effect) is found to be of the most importance.},
doi = {10.1063/1.2190105},
journal = {AIP Conference Proceedings},
number = 1,
volume = 821,
place = {United States},
year = {Mon Mar 20 00:00:00 EST 2006},
month = {Mon Mar 20 00:00:00 EST 2006}
}