Author: Zumbach, C.
Paper Title Page
TUPSO17 Status of the Manufacturing Process for the SwissFEL C-Band Accelerating Structures 245
 
  • U. Ellenberger, H. Blumer, L. Paly, C. Zumbach
    Paul Scherrer Institute, Villigen PSI, Switzerland
  • M. Bopp, H. Fitze, F. Löhl
    PSI, Villigen PSI, Switzerland
 
  For the SwissFEL project a total of 104 C-band (or approximately 6 GHz for 5’712 MHz required) accelerating structures are needed. After developing and RF-testing of several short structures (0.5m), three 2meter prototypes have been produced successfully in-house. Avoiding any RF-tuning after fabrication, a high precision machining of the components is necessary. Special procedures were developed and handling equipment was built in order to maintain the accuracy during stacking and vacuum brazing of the parts for the C-band structures. This paper summarizes the manufacturing techniques and the mechanical test results for constant subvolumes to match the required klystron frequency of 5’712 MHz