IPAC2010 TUPD070 IPAC2010 Logo
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Title Progress with Tevatron Electron Lens Head-on Beam-Beam Compensation Submitted 07-DEC-09 21:27 (UTC)
Classification 05 Beam Dynamics and Electromagnetic Fields Modified
Presentation Poster
Presenter Alexander Valishev Paper ID TUPD070
Paper PDF Download
Author(s) Alexander Valishev, Gennady Kuznetsov, Vladimir Shiltsev, Giulio Stancari, Xiaolong Zhang (Fermilab, Batavia), Alexander Leonidovich Romanov (BINP SB RAS, Novosibirsk)
Abstract Tevatron electron lenses have been successfully used to mitigate bunch-to-bunch differences caused by long-range 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 e-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 the electron lens on the proton and antiproton beam lifetime.
Word Count: 121  Character Count: 813
Footnote
Funding Agency Work was supported by Fermi Research Alliance, LLC under Contract DE-AC02-07CH11359 with the United States Department of Energy, and by the DOE through the US LHC Accelerator Research Program (LARP).


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