Materials Characterization for SRF Cavities: Gaining Insight Into Nb3Sn

James Tuggle, Grigory Eremeev, Michael Kelley, Ari Palczewski, Uttar Pudasaini, Charles Reece, Lindroos, Mats (Ed.), Schaa, Volker RW (Ed.), Arduini, Gianluigi (Ed.), Pranke, Juliana (Ed.), Seidel, Mike (Ed.)
Although SRF accelerators are an invaluable research tool they can be painfully expensive to construct and operate at the current level of SRF technology. This cost is significantly due to the necessity to operate at a temperature of only 2K. Considerable research is currently underway into next generation SRF cavity technologies such as Ndoping and Nb3Sn coating. Both of these technologies will lower the cryogenic load of accelerators, correspondingly lowering both construction and operating
more » ... ion and operating costs. However, current understanding of either technology is incomplete and in order to elucidate the underlying mechanisms there is a need to push current characterization methods forward. In this work, ion beam techniques (e.g. focused ion beam (FIB)), and electron backscatter diffraction (EBSD) were applied to help understand Nb3Sn coating mechanisms. This presentation will focus on characterization, providing examples of EBSD work, along with discussion of some of the issues encountered while trying to produce high quality EBSD data.
doi:10.18429/jacow-ipac2017-mopva114 fatcat:ndaetrtzafez7giyohkobguoba