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- J.L. Munoz, J. Feuchtwanger, J. Verdu
ESS-Bilbao, Zamudio, Spain
- F.J. Bermejo
Bilbao, Faculty of Science and Technology, Bilbao, Spain
- V. Etxebarria, J. Portilla
University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
- N. Garmendia
ESS Bilbao, Bilbao, Spain
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ESS-Bilbao proton linac warm section will end at 50 MeV. A cryomodule with two double spoke cavities, currently in R&D stage, will be tested at that energy. The two spoke cavity prototypes to be built (geometric beta 0.54) will be fully compatible with the ESS project spoke cavities. Different tuning systems will be studied for spoke resonators, and one of them is the use of plunger tuners. In this paper, a study of this kind of tuners on DSR cavities is presented, including electromagnetic and thermal simulations. Also, for different R&D activities related to spoke cavities, ESS-Bilbao designed and built a beta 0.39 DSR model in aluminum. This model can be used to install a plunger tuner system and test LLRF devices at room temperature.
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