The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CPAPER AU - Aull, S. AU - Junginger, T. AU - Knobloch, J. AU - Sublet, A. AU - Valente-Feliciano, A-M. AU - Venturini Delsolaro, W. AU - Zhang, P. TI - On the Understanding of Q-Slope of Niobium Thin Films J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - The Q-slope of niobium coated copper cavities at medium fields is still the limiting factor for the application the Nb/Cu technology in accelerators. This paper presents a dedicated study of a niobium coating with bulk-like characteristics which shows a Q-slope comparable to bulk Nb at 400 MHz and 4 K. Combining the bulk like film with recent findings of the HIE Isolde indicates that the film microstructure and the Nb/Cu interface are the key aspects to understanding the Q-slope. PB - JACoW CY - Geneva, Switzerland SP - 494 EP - 500 KW - ECR KW - niobium KW - ion KW - SRF KW - cavity DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-TUBA03 UR - http://srf2015.vrws.de/papers/tuba03.pdf ER -