• B. Goddard, M.J. Barnes, W. Bartmann
  CERN, Geneva

A new 450 GeV/c extraction kicker concept has been investigated for the SPS, based on open C-type kickers and a fast-bumper system. The beam is moved into the kicker gap only a few ms before extraction. The concept is illustrated in detail with the LSS4 extraction in the SPS – very similar parameters and considerations apply to the other fast extraction system in LSS6. A similar concept could also be conceived for injection but is more difficult due to the larger beam size. The technical issues are presented and the potential impact on the machine impedance is discussed.