Mitigation of the electron-cloud effect in the PSR and SNS proton storage rings by tailoring the bunch profile

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For the storage ring of the Spallation Neutron Source(SNS) at Oak Ridge, and for the Proton Storage Ring (PSR) at Los Alamos, both with intense and very long bunches, the electroncloud develops primarily by the mechanism of trailing-edge multipacting. We show, by means of simulations for the PSR, how the resonant nature of this mechanism may be effectively broken by tailoring the longitudinal bunch profile at fixed bunch charge, resulting in a significant decrease in the electron-cloud effect. We briefly discuss the experimental difficulties expected in the implementation of this cure.

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Pivi, M. & Furman, M.A. May 20, 2003.

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For the storage ring of the Spallation Neutron Source(SNS) at Oak Ridge, and for the Proton Storage Ring (PSR) at Los Alamos, both with intense and very long bunches, the electroncloud develops primarily by the mechanism of trailing-edge multipacting. We show, by means of simulations for the PSR, how the resonant nature of this mechanism may be effectively broken by tailoring the longitudinal bunch profile at fixed bunch charge, resulting in a significant decrease in the electron-cloud effect. We briefly discuss the experimental difficulties expected in the implementation of this cure.

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vp.

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INIS; OSTI as DE00816226

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  • Particle Accelerator Conf., Portland, OR (US), 05/12/2003--05/16/2003

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  • Report No.: LBNL--52709
  • Report No.: SLAC-PUB-9852
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 816226
  • Archival Resource Key: ark:/67531/metadc733759

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 20, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 4, 2016, 1:37 p.m.

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Pivi, M. & Furman, M.A. Mitigation of the electron-cloud effect in the PSR and SNS proton storage rings by tailoring the bunch profile, article, May 20, 2003; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc733759/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.