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Konrad, M.

Paper Title Page
TUPEA038 A Digital Baseband Low Level RF Control for the P-linac Test Stand at GSI 1413
 
  • R. Eichhorn, A. Araz, U. Bonnes, F. Hug, M. Konrad, P. Nonn
    TU Darmstadt, Darmstadt
  • G. Schreiber, W. Vinzenz
    GSI, Darmstadt
  • R. Stassen
    FZJ, Jülich
  
 

Dur­ing the re­design of the low level RF sys­tem for the S-DALINAC, a base­band ap­proach was cho­sen. The RF sig­nals from/ to the cav­i­ty are con­vert­ed into the base­band via I/Q Mod­u­la­tors/ De­mod­u­la­tors. The ad­van­tage of this de­sign was re­al­ized lat­eron, as adap­tion of other fre­quen­cies be­comes rather easy. The sys­tem, orig­i­nal­ly de­signed for 3 GHz su­per­con­duct­ing cav­i­ty in cw op­er­a­tion is cur­rent­ly mod­i­fied to con­trol a 324 MHz room tem­per­a­ture CH cav­i­ty in pulsed op­er­a­tion. We will re­port on the rf con­trol sys­tem prin­ci­ple, the re­quired mod­i­fi­ca­tions and first re­sults.