Analysis of the Wakefield Effects in the PEP-II SLAC B-FACTORY

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We present the history and analysis of different wake field effects throughout the operational life of the PEP-II SLAC B-factory. Although the impedance of the high and low energy rings is small, the intense high current beams generated a lot of power. The effects from these wake fields are: heating and damage of vacuum beam chamber elements like RF seals, vacuum valves , shielded bellows, BPM buttons and ceramic tiles; vacuum spikes, vacuum instabilities and high detector background; beam longitudinal and transverse instabilities. We also discuss the methods used to eliminate these effects. Results of this analysis and the PEP-II ... continued below

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3 pages

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Novokhatski, A; Seeman, J.; Sullivan, M.; Wienands, U. & /SLAC July 6, 2009.

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We present the history and analysis of different wake field effects throughout the operational life of the PEP-II SLAC B-factory. Although the impedance of the high and low energy rings is small, the intense high current beams generated a lot of power. The effects from these wake fields are: heating and damage of vacuum beam chamber elements like RF seals, vacuum valves , shielded bellows, BPM buttons and ceramic tiles; vacuum spikes, vacuum instabilities and high detector background; beam longitudinal and transverse instabilities. We also discuss the methods used to eliminate these effects. Results of this analysis and the PEP-II experience may be very useful in the design of new storage rings and light sources.

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3 pages

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  • Contributed to Particle Accelerator Conference (PAC 09), Vancouver, BC, Canada, 4-8 May 2009

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  • Report No.: SLAC-PUB-13701
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 958570
  • Archival Resource Key: ark:/67531/metadc925673

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Office of Scientific & Technical Information Technical Reports

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  • July 6, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 15, 2016, 3:20 p.m.

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Novokhatski, A; Seeman, J.; Sullivan, M.; Wienands, U. & /SLAC. Analysis of the Wakefield Effects in the PEP-II SLAC B-FACTORY, article, July 6, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc925673/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.