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TY - CONF AU - Eremeev, G.V. AU - Kelley, M.J. AU - Pudasaini, U. AU - Reece, C.E. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Insights Into Nb₃Sn Coating of CEBAF Cavities From Witness Sample Analysis J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - With the progress made in the Nb₃Sn coatings on single-cell SRF cavities, development is ongoing to reproduce single-cell cavity results on practical structures such as CEBAF 5-cell cavities. During CEBAF cavity coating development, several changes from the single-cell procedure to the coating setup and the heating profile were introduced to improve the quality of Nb₃Sn films. To witness the properties of grown Nb₃Sn films in different cavity locations, 10 mm x 10 mm samples were positioned in strategic places within the coating chamber. Composition and structure of the samples were analyzed with surface analytic techniques and correlated with sample location during coatings. Implications from sample analysis to Nb₃Sn coatings on different geometries are discussed in this contribution. PB - JACoW Publishing CP - Geneva, Switzerland SP - 60 EP - 64 KW - cavity KW - niobium KW - SRF KW - HOM KW - hardware DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-MOP016 UR - http://jacow.org/srf2019/papers/mop016.pdf ER -