JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Pira, C. AU - Antoine, C.Z. AU - Azzolini, O. AU - Benjamin, C. AU - Berry, S. AU - Berton, R. AU - Bertucci, M. AU - Bonesso, M. AU - Bradley, J.W. AU - Burt, G. AU - Caforio, R. AU - Candela, S. AU - Candela, V. AU - Chyhyrynets, E. AU - Dima, R. AU - Favero, G. AU - Fonnesu, D. AU - Ford, D. AU - Garcia, V.A. AU - Hryhorenko, O. AU - Jiang, X. AU - Kalboussi, Y. AU - Keckert, S. AU - Keppel, G. AU - Knobloch, J. AU - Kugeler, O. AU - Leicester, N.L. AU - Longuevergne, D. AU - Malyshev, O.B. AU - Marconato, G. AU - Marks, N. AU - Medvids, A. AU - Mychko, A. AU - Onufrijevs, P. AU - Paparella, R. AU - Pepato, A. AU - Piccoli, D. AU - Piccoli, F. AU - Proslier, Th. AU - Prucnal, S. AU - Rebesan, P. AU - Ries, R. AU - Romanato, M. AU - Salmaso, A. AU - Seal, D.J. AU - Seiler, E. AU - Sian, B.S. AU - Simon, S. AU - Smith, L.G.P. AU - Squizzato, G. AU - Staedler, T. AU - Stivanello, F. AU - Telatin, F. AU - Turner, D.A. AU - Valente-Feliciano, A-M. AU - Valizadeh, R. AU - Zhou, S. AU - Zubtsovskii, A.O. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Progress in European Thin Film Activities J2 - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023 CY - Grand Rapids, MI, USA T2 - International Conference on RF Superconductivity T3 - 21 LA - english AB - Thin-film cavities with higher Tc superconductors (SC) than Nb promise to move the operating temperature from 2 to 4.5 K with savings 3 orders of magnitude in cryogenic power consumption. Several European labs are coordinating their efforts to obtain a first 1.3 GHz cavity prototype through the I.FAST collaboration and other informal collaborations with CERN and DESY. R&D covers the entire production chain. In particular, new production techniques of seamless Copper and Niobium elliptical cavities via additive manufacturing are studied and evaluated. New acid-free polishing techniques to reduce surface roughness in a more sustainable way such as plasma electropolishing and metallographic polishing have been tested. Optimization of coating parameters of higher Tc SC than Nb (Nb₃Sn, V₃Si, NbTiN) via PVD and multilayer via ALD are on the way. Finally, rapid heat treatments such as Flash Lamp Annealing and Laser Annealing are used to avoid or reduce Cu diffusion in the SC film. The development and characterization of SC coatings is done on planar samples, 6 GHz cavities, choke cavities, QPR and 1.3 GHz cavities. This work presents the progress status of these coordinated efforts. PB - JACoW Publishing CP - Geneva, Switzerland SP - 607 EP - 614 KW - cavity KW - SRF KW - target KW - niobium KW - laser DA - 2023/09 PY - 2023 SN - 2673-5504 SN - 978-3-95450-234-9 DO - doi:10.18429/JACoW-SRF2023-WECAA01 UR - https://jacow.org/srf2023/papers/wecaa01.pdf ER -