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Zheng, H.

Paper Title Page
FPAE010 Barrier RF System and Applications in Main Injector 1189
 
  • W. Chou, D. Wildman
    Fermilab, Batavia, Illinois
  • A. Takagi
    KEK, Ibaraki
  • H. Zheng
    CALTECH, Pasadena, California
 
  Funding: Work supported by the Universities Research Association, INC. under contract with the U.S. Department of Energy NO. DE-AC02-76CH03000 and by the US-Japan Collaboration in High Energy Physics.

A wideband RF system (the barrier RF) has been built and installed in the Fermilab Main Injector. The cavities are made of low Q Finemet cores. The modulators use high voltage fast solid-state switches. It can generate ±7 kV single square voltage pulses. It is used to stack two proton batches to double the bunch intensity for pbar production. The stacked high intensity beams have been successfully accelerated to 120 GeV with small losses. A new test to continuously stack 12 batches for the NuMI experiment is under way.