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| WEPMN030 |
Testing Procedures for Fast Frequency Tuners of XFEL Cavities |
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- K.P. Przygoda, W. Cichalewski, T. Pożniak
TUL-DMCS, Łódź, Poland
- J. Branlard, O. Hensler, H. Schlarb, Ch. Schmidt
DESY, Hamburg, Germany
- K. Kasprzak
IFJ-PAN, Kraków, Poland
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The XFEL accelerator will be equipped with 100 accelerating modules. Each accelerating module will host 8 superconducting cavities. Every single cavity will be equipped with a mechanical tuner. Coarse tuning will be supported by a step motor; fine tuning will be handled by double piezoelectric elements installed inside a single mechanical support, providing actuator and sensor functionality or redundancy. Before the main linac installation, all its subcomponents need to be tested and verified. The AMTF (Accelerator Module Test Facility) has been built at DESY to test all XFEL cryomodules. In total 1600 piezos need to be tested. Test procedures for fast frequency tuners have been developed to check their basic performance in cryogenic conditions (tuning range, polarity, acting and sensing abilities). High level applications perform fully automated tests including report generation. After the successful completion of the acceptance tests, the cryomodules will be prepared for tunnel installation.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-WEPMN030
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