The RTA betatron-node experiment: limiting cumulative BBU growth in a linear periodic system
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The RTA betatron-node experiment: limiting cumulative BBU growth in a linear periodic system

  • Author(s): Lidia, Steven M.
  • Houck, Timothy L.
  • Westenskow, Glen
  • et al.
Abstract

The successful operation of a Two-Beam accelerator based on extended relativistic klystrons hinges upon decreasing the cumulative dipole BBU growth from an exponential to a more manageable linear growth rate. We describe the theoretical scheme to achieve this, and a new experiment to test this concept. The experiment utilizes a 1-MeV, 600-Amp, 200-ns electron beam and a short beamline of periodically-spaced rf dipole-mode pillbox cavities and solenoid magnets for transport. Descriptions of the beamline are presented, followed by theoretical studies of the beam transportand dipole-mode growth.

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