Author: Solodko, A.
Paper Title Page
TUPME054 Experimental Study of the Effect of Beam Loading on RF Breakdown Rate in CLIC High-gradient Accelerating Structures 1691
 
  • F. Tecker, R. Corsini, M. Dayyani Kelisani, S. Döbert, A. Grudiev, O. Kononenko, S. Lebet, J.L. Navarro Quirante, G. Riddone, I. Syratchev, W. Wuensch
    CERN, Geneva, Switzerland
  • A. Solodko
    JINR, Dubna, Moscow Region, Russia
  
  RF break­down is a key issue for the multi-TeV high-lu­mi­nos­ity e+e− Com­pact Lin­ear Col­lider (CLIC). Break­downs in the high-gra­di­ent ac­cel­er­a­tor struc­tures can de­flect the beam and de­crease the de­sired lu­mi­nos­ity. The lim­i­ta­tions of the ac­cel­er­at­ing struc­tures due to break­downs have been stud­ied so far with­out a beam pre­sent in the struc­ture. The pres­ence of the beam mod­i­fies the dis­tri­b­u­tion of the elec­tri­cal and mag­netic field dis­tri­b­u­tions, which de­ter­mine the break­down rate. There­fore an ex­per­i­ment has been de­signed for high power test­ing a CLIC pro­to­type ac­cel­er­at­ing struc­ture with a beam pre­sent in the CLIC Test Fa­cil­ity (CTF3). A spe­cial beam line al­lows ex­tract­ing a beam with nom­i­nal CLIC beam cur­rent and du­ra­tion from the CTF3 linac. The paper de­scribes the beam op­tics de­sign for this ex­per­i­men­tal beam line and the com­mis­sion­ing of the ex­per­i­ment with beam.