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Schuh, M.

Paper Title Page
THP049 Optimization of Spiral-Loaded Cavities Using the 3D Code OPERA/SOPRANO 900
  • M. Schuh
    CERN, Geneva
  • K.-U. Kühnel, C.P. Welsch
    MPI-K, Heidelberg
  • M. Schuh
    GSI, Darmstadt

Rebunching cavities are today routinely used for matching a beam of charged particles between different accelerator structures, and thus optimizing the overall transmission and beam quality. At low resonance frequencies, unnecessary large dimensions of these cavities can be avoided by using spiral-loaded cavities. The optimization of these structures is a complicated process in which a wide range of different parameters have to be modified essentially in parallel. In this contribution, we investigate in detail the characteristics of a model structure with the 3D code OPERA/SOPRANO. This includes the optimization of the structure in terms of the spiral geometry for a given resonance frequency, the investigation of power losses on the inner surfaces, and the possibility of cavity tuning by means of a tuning cylinder.