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Gruner, S. M.

Paper Title Page
MOOBAB02 Progress Toward an ERL Extension to CESR 107
  • G. Hoffstaetter, I. V. Bazarov, G. W. Codner, M. Forster, S. Greenwald, Y. Li, M. Liepe, C. E. Mayes, C. K. Sinclair, C. Song, A. Temnykh, M. Tigner, Y. Xie
    CLASSE, Ithaca
  • D. H. Bilderback, D. S. Dale, K. Finkelstein, S. M. Gruner
    CHESS, Ithaca, New York
  • B. M. Dunham
    Cornell University, Laboratory for Elementary-Particle Physics, Ithaca, New York
  • D. Sagan
    Cornell University, Department of Physics, Ithaca, New York
  Funding: Supported by Cornell University and NSF grant PHY 0131508

The status of plans for an Energy-Recovery Linac (ERL) X-ray facility at Cornell University is described. Currently, Cornell operates the Cornell High Energy Synchrotron Source (CHESS) at the CESR ring and the ERL is planned to be an extension to the CESR ring with the addition of a 5-GeV superconducting c.w. linac. Topics covered in this paper include the full layout on the Cornell campus, the different operation modes of the accelerator, methods to limit emittance growth, control of beam-ion effects and ways to limit transverse instabilities. As an upgrade of the CESR ring, special attention is given to reuse of many of the existing components. The very small electron-beam emittances would produce an x-ray source that is highly superior than any existing storage-ring light source. The ERL includes 18 X-ray beamlines optimized for specific areas of research that are currently being defined by an international group of scientists. This planned upgrade illustrates how other existing storage rings could be upgraded to work as ERL light sources with vastly improved beam qualities and with limited dark time for x-ray users.

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