• E.R. Harms, T.T. Arkan, H.T. Edwards, M.H. Foley, A. Hocker, T.N. Khabiboulline, M.W. McGee, D.V. Mitchell, A.M. Rowe, N. Solyak
  Fermilab, Batavia
• W. Decking, M. Dohlus, M. Hüning, K. Jensch, G. Kreps, W.-D. Möller, E. Vogel
  DESY, Hamburg

A 4-cavity 3.9 GHz cryomodule has been constructed at Fermilab and delivered to DESY. Its intended use is to linearize the non-linear beam energy-time profile produced by the 1.3 GHz accelerating gradient and thus improve the operating characteristics of FLASH for its users. First cold testing of the module is expected in the near future prior to its installation. We will report on the performance of the cavities, assembly and transport of the module as well as anticipated testing, installation, and commissioning plans.

Slides

Talk