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Syratchev, I.

Paper Title Page
MOPD29 First Beam Tests of the CLIC Power Extraction Structure with the Two-Beam Test Stand 113
 
  • E. Adli
    University of Oslo, Oslo
  • R. Corsini, S. Döbert, A. Dubrovsky, G. Riddone, D. Schulte, I. Syratchev
    CERN, Geneva
  • R.J.M.Y. Ruber, V.G. Ziemann
    Uppsala University, Uppsala
  • S. Vilalte
    IN2P3-LAPP, Annecy-le-Vieux
  
 

The two-beam acceleration scheme foreseen for CLIC and the associated radio-frequency (RF) components will be tested in the Two-beam Test Stand (TBTS) at CTF3, CERN. Of special interest is the performance of the power extraction structures (PETS) and the acceleration structures as well as the stability of the beams in the respective structures. After the recent completion of the TBTS, the first 12 GHz PETS has been tested with beam. Up to 30MW of RF power was extracted from a 5A electron beam, using so called recirculation of the RF power inside the PETS. The TBTS instrumentation, including inductive beam position monitors, allows precise measurement of beam parameters before and after the PETS as well as RF power and phase. Measurements of transverse kicks, energy loss and RF power with recirculation are discussed and compared with estimations, including first measurements of RF pulse shortening probably due to break down.