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Xiang, R.

Paper Title Page
TUPEC003 The ELBE Accelerator Facility Starts Operation with the Superconducting RF Gun 1710
 
  • R. Xiang, A. Arnold, H. Büttig, D. Janssen, M. Justus, U. Lehnert, P. Michel, P. Murcek, A. Schamlott, Ch. Schneider, R. Schurig, F. Staufenbiel, J. Teichert
    FZD, Dresden
  • T. Kamps, J. Rudolph, M. Schenk
    Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Elektronen-Speicherring BESSY II, Berlin
  • G. Klemz, I. Will
    MBI, Berlin
  
 

As the first su­per­con­duct­ing rf pho­to-in­jec­tor (SRF gun) in prac­tice, the FZD 3+1/2 cell SRF gun is suc­cess­ful­ly con­nect­ed to the su­per­con­duct­ing linac ELBE. This set­ting will im­prove the beam qual­i­ty for ELBE users. It is the first ex­am­ple for an ac­cel­er­a­tor fa­cil­i­ty fully based on su­per­con­duct­ing RF tech­nol­o­gy. For high av­er­age power FEL and ERL sources, the com­bi­na­tion of SRF linac and SRF gun pro­vides a new chance to pro­duce beams of high av­er­age cur­rent and low emit­tance with rel­a­tive low power con­sump­tion. The main pa­ram­e­ters achieved from the pre­sent SRF gun are the final elec­tron en­er­gy of 3 MeV, 16 μA av­er­age cur­rent, and rms trans­verse nor­mal­ized emit­tances of 3 mm mrad at 77 pC bunch charge. A mod­i­fied 3+1/2 cell nio­bi­um cav­i­ty has been fab­ri­cat­ed and test­ed, which will in­crease the rf gra­di­ent in the gun and thus bet­ter the beam pa­ram­e­ters fur­ther. In this paper the sta­tus of the in­te­gra­tion of the SRF gun with the ELBE linac will be pre­sent­ed, and the lat­est re­sults of the beam ex­per­i­ments will be dis­cussed.