S. LIDIA (LAWRENCE BERKELEY NATIONAL LABORATORY), T. HOUCK, G. WESTENSKOW (LAWRENCE LIVERMORE NATIONAL LIVERMORE)
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 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 pillbox cavities and solenoid magnets for transport. Descriptions of the beamline are then presented, followed by theoretical studies of the beam transport and dipole mode growth.
* This work was performed under the auspices of the U.S. Department of Energy by University of California Lawrence Berkeley National Laboratory under contract AC03-76SF00098 and Lawrence Livermore National Laboratory under contract W-7405-ENG-48.
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