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Larrañaga, M.

Paper Title Page
MOP080 Design Optimisation of the Re-bunching Cavities for the Front End Test Stand at RAL 238
 
  • D.C. Plostinar
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • R. Enparantza, M. Larrañaga
    Fundación TEKNIKER, Eibar (Gipuzkoa)
  
 

The Medium Energy Beam Transport (MEBT) line for the Front End Test Stand (FETS) at Rutherford Appleton Laboratory (RAL) will transport a 60 mA, 2ms, 50 pps H- beam at 3 MeV. Its main components include a number of quadrupoles, re-bunching cavities and a fast-slow chopping system with dedicated beam dumps, as well as a diagnostics beam line. In this paper we present the design approach for the MEBT re-bunching cavities. A description is given for the proposed geometry and the main design choices are examined. In addition, the latest RF simulations results performed with 2D and 3D electromagnetic codes are presented including optimisation details and manufacturing plans.