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Flisgen, T.

Paper Title Page
WEPEC052 Higher Order Modes in Third Harmonic Cavities for XFEL/FLASH 3007
 
  • I.R.R. Shinton, R.M. Jones, N. Juntong
    UMAN, Manchester
  • N. Baboi
    DESY, Hamburg
  • N. Eddy, T.N. Khabiboulline
    Fermilab, Batavia
  • T. Flisgen, H.-W. Glock, U. van Rienen
    Rostock University, Faculty of Computer Science and Electrical Engineering, Rostock
  
 

We anal­yse the high­er order modes in the 3.9GHz bunch shap­ing cav­i­ties re­cent­ly in­stalled in the XFEL/FLASH fa­cil­i­ty at DESY. We re­port on re­cent ex­per­i­men­tal re­sults on the fre­quen­cy spec­trum, both beam and probe based. These are com­pared to those pre­dict­ed by fi­nite el­e­ment com­put­er codes, glob­alised scat­ter­ing ma­trix cal­cu­la­tions and a two-band cir­cuit model. This study is fo­cused on the dipole com­po­nent of the multi­band ex­pan­sion of the wake­field.