Author: Blanch Gutierrez, C.
Paper Title Page
MOPWO023 Upgrade and Systematic Measurement Campaign of the ATF2 Multi-OTR System 933
 
  • A. Faus-Golfe, J. Alabau-Gonzalvo, C. Blanch Gutierrez, J. Resta-López
    IFIC, Valencia, Spain
  • J. Cruz, E. Marín, D.J. McCormick, G.R. White, M. Woodley
    SLAC, Menlo Park, California, USA
  
  A multi-Op­ti­cal Tran­si­tion Ra­di­a­tion (mOTR) sys­tem made of four sta­tions is being used rou­tinely since Sep­tem­ber 2011 for trans­verse beam size mea­sure­ment and emit­tance re­con­struc­tion in the ex­trac­tion line of ATF2, pro­vid­ing di­ag­nos­tic sup­port dur­ing the ATF2 tun­ing op­er­a­tion. Fur­ther­more it is also an ex­cel­lent tool for fast trans­verse cou­pling cor­rec­tion. Due to the com­pact­ness of the cur­rent de­sign the sys­tem has an in­flu­ence in the in­crease of the trans­verse emit­tance due to wake­field ef­fects when a si­mul­ta­ne­ous mea­sure­ment is made. To avoid this ef­fect a new tar­get holder and a new op­tics has been de­signed and im­ple­mented. In this paper we de­scribe the pre­sent sta­tus of the ATF2 mOTR sys­tem, show­ing re­cent per­for­mance re­sults, and hard­ware de­sign im­prove­ments.