Author: Dordevic, S.
Paper Title Page
MOP039 High Stability Resonant Kicker Development for the SwissFEL Switch Yard 103
 
  • M. Paraliev, H.-H. Braun, S. Dordevic, C.H. Gough
    PSI, Villigen PSI, Switzerland
  
  The Swiss­FEL is a linac-based X-ray free elec­tron laser fa­cil­ity under con­struc­tion at the Paul Scher­rer In­sti­tute. The fa­cil­ity will pro­vide fem­tosec­ond, high bright­ness X-ray pulses for fun­da­men­tal and ap­plied sci­ence re­search. To in­crease fa­cil­ity ef­fi­ciency, a dou­ble bunch op­er­a­tion is planned to serve si­mul­ta­ne­ously two ex­per­i­men­tal sta­tions at the full linac rep­e­ti­tion rate. The main linac will ac­cel­er­ate two elec­tron bunches spaced 28 ns apart and a fast and sta­ble de­flect­ing sys­tem will be used to sep­a­rate the two bunches into two dif­fer­ent un­du­la­tor lines. The de­flect­ing sys­tem uses a novel con­cept based on res­o­nant kicker mag­nets. A pro­to­type kicker mag­net and its con­trol sys­tem were de­signed and built. Since sta­bil­ity is cru­cial, the sta­bil­ity per­for­mance of the pro­to­type was stud­ied. The peak to peak am­pli­tude sta­bil­ity of ±11 ppm (3.5 ppm rms) was achieved, which is well within the FEL tol­er­ance of ±80 ppm. The lay­out of the de­flect­ing sys­tem and the key de­sign pa­ra­me­ters are also pre­sented.