Preparatory procedure and equipment for the European x-ray free electron laser cavity implementation

D. Reschke, R. Bandelmann(Fermi National Accelerator Laboratory), Thorsten Buettner(Fermi National Accelerator Laboratory), K. Escherich(Fermi National Accelerator Laboratory), A. Goessel(Fermi National Accelerator Laboratory), Birte van der Horst(Fermi National Accelerator Laboratory), J. Iversen(Fermi National Accelerator Laboratory), D. Klinke(Fermi National Accelerator Laboratory), Gary L. Kreps(Fermi National Accelerator Laboratory), Nicolay Krupka(Fermi National Accelerator Laboratory), L. Lilje(Fermi National Accelerator Laboratory), A. Matheisen(Fermi National Accelerator Laboratory), W.-D. Moeller(Fermi National Accelerator Laboratory), Hildegard Zimmermann(Fermi National Accelerator Laboratory), C. Müeller(Fermi National Accelerator Laboratory), B. Petersen(Fermi National Accelerator Laboratory), D. Proch(Fermi National Accelerator Laboratory), M. Schmoekel(Fermi National Accelerator Laboratory), Nicolai Steinhau-Kuehl(Fermi National Accelerator Laboratory), Jan-Hendrik Thie(Fermi National Accelerator Laboratory), H. Weise(Fermi National Accelerator Laboratory), H. Weitkaemper(Fermi National Accelerator Laboratory), R. Carcagno(Fermi National Accelerator Laboratory), T. Khabiboulline(Fermi National Accelerator Laboratory), S.K. Kotelnikov(Fermi National Accelerator Laboratory), A. Makulski(Fermi National Accelerator Laboratory), J. Nogiec(Fermi National Accelerator Laboratory), R. Nehring(Fermi National Accelerator Laboratory), Marc Ross(Fermi National Accelerator Laboratory), W. Schappert(Fermi National Accelerator Laboratory)
Physical Review Special Topics - Accelerators and Beams
July 9, 2010
10.1103/physrevstab.13.071001
Cited by 5Open Access
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Abstract

The European x-ray free electron laser is under construction at Deutsches Elektronen-Synchrotron (DESY). The electron beam energy of up to 17.5 GeV will be achieved by using superconducting accelerator technology. Final prototyping, industrialization, and new infrastructure are the actual challenges with respect to the accelerating cavities. This paper describes the preparation strategy optimized for the cavity preparation procedure in industry. For the industrial fabrication and preparation, several new hardware components have been already developed at DESY. The design and construction of a semiautomated rf-measurement machine for dumbbells and end groups are described. In a collaboration among FNAL, KEK, and DESY, an automatic cavity tuning machine has been designed and four machines are under construction. The functionality of these machines with special attention to safety aspects is described in this paper. A new high pressure rinsing system has been developed and is operational.

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