Electron cooling of 8-GeV antiprotons at Fermilab's Recycler: Results and operational implications

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Electron cooling of 8 GeV antiprotons at Fermilab's Recycler storage ring is now routinely used in the collider operation. It requires a 0.1-0.5 A, 4.3 MeV dc electron beam and is designed to increase the longitudinal phase-space density of the circulating antiproton beam. This paper briefly describes the characteristics of the electron beam that were achieved to successfully cool antiprotons. Then, results from various cooling force measurements along with comparison to a nonmagnetized model are presented. Finally, operational aspects of the implementation of electron cooling at the Recycler are discussed, such as adjustments to the cooling rate and the influence ... continued below

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5 pages

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Prost, L.R.; Broemmelsiek, D.; Burov, Alexey V.; Carlson, K.; Gattuso, C.; Hu, M. et al. May 1, 2006.

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Electron cooling of 8 GeV antiprotons at Fermilab's Recycler storage ring is now routinely used in the collider operation. It requires a 0.1-0.5 A, 4.3 MeV dc electron beam and is designed to increase the longitudinal phase-space density of the circulating antiproton beam. This paper briefly describes the characteristics of the electron beam that were achieved to successfully cool antiprotons. Then, results from various cooling force measurements along with comparison to a nonmagnetized model are presented. Finally, operational aspects of the implementation of electron cooling at the Recycler are discussed, such as adjustments to the cooling rate and the influence of the electron beam on the antiproton beam lifetime.

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5 pages

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  • Presented at 39th ICFA Advanced Beam Dynamics Workshop on High Intensity High Bightness Hadron Beams 2006 (HB2006), Tsukuba, Japan, 29 May - 2 Jun 2006

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  • Report No.: FERMILAB-CONF-06-098-AD
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 892385
  • Archival Resource Key: ark:/67531/metadc882845

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Office of Scientific & Technical Information Technical Reports

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  • May 1, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 5, 2016, 2:48 p.m.

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Prost, L.R.; Broemmelsiek, D.; Burov, Alexey V.; Carlson, K.; Gattuso, C.; Hu, M. et al. Electron cooling of 8-GeV antiprotons at Fermilab's Recycler: Results and operational implications, article, May 1, 2006; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc882845/: accessed January 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.