Author: Noak, M.
Paper Title Page
MOP030 Post-Production Dimensional Control of the Cold Masses and Vacuum Vessels for the XFEL Cryomodules 165
 
  • S. Barbanotti, W. Benecke, K. Jensch, M. Noak, M. Schlösser
    DESY, Hamburg, Germany
 
  The very tight alignment tolerances required in the XFEL Linac reflect in very tight tolerances for the production of the main cryomodule components. To verify the adherence to the specified tolerances of the cold masses and vacuum vessels, dimensional controls with laser tracker are performed at the production site following DESY experts’ instructions and verified at DESY with an independent measurement. We present here the measurement strategy and a summary of the results obtained so far.