Progress with Tevatron Electron Lens Head-On Beam-Beam Compensation

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Tevatron electron lenses have been successfully used to mitigate bunch-to-bunch differences caused by longrange beam-beam interactions. For this purpose, the electron beam with uniform transverse density distribution was used. Another planned application of the electron lens is the suppression of tune spread due to head-on beam-beam collisions. For this purpose, the transverse distribution of the E{sup -} beam must be matched to that of the antiproton beam. In 2009, the Gaussian profile electron gun was installed in one of the Tevatron electron lenses. We report on the first experiments with non-linear beam-beam compensation. Discussed topics include measurement and control of ... continued below

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3 pages

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Valishev, A.; Kuznetsov, G.; Shiltsev, V.; Stancari, G. & Zhang, X. May 19, 2010.

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Tevatron electron lenses have been successfully used to mitigate bunch-to-bunch differences caused by longrange beam-beam interactions. For this purpose, the electron beam with uniform transverse density distribution was used. Another planned application of the electron lens is the suppression of tune spread due to head-on beam-beam collisions. For this purpose, the transverse distribution of the E{sup -} beam must be matched to that of the antiproton beam. In 2009, the Gaussian profile electron gun was installed in one of the Tevatron electron lenses. We report on the first experiments with non-linear beam-beam compensation. Discussed topics include measurement and control of the betatron tune spread, importance of the beam alignment and stability, and effect of electron lens on the antiproton beam lifetime.

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3 pages

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  • Journal Name: Conf.Proc.C100523:tupd070,2010; Conference: Presented at 1st International Particle Accelerator Conference: IPAC'10, Kyoto, Japan, 23-28 May 2010

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  • Report No.: FERMILAB-CONF-10-137-AD-APC
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 983989
  • Archival Resource Key: ark:/67531/metadc1014614

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Office of Scientific & Technical Information Technical Reports

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  • May 19, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 25, 2017, 4:11 p.m.

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Valishev, A.; Kuznetsov, G.; Shiltsev, V.; Stancari, G. & Zhang, X. Progress with Tevatron Electron Lens Head-On Beam-Beam Compensation, article, May 19, 2010; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc1014614/: accessed May 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.