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2. The PIP-II Reference Design Report
3. G. Ciovati, P. Kneisel, J. Brawley, R. Bundy, I. Campisi, K. Davis, K. Macha et al., “Superconducting prototype cavities for the Spallation Neutron Source (SNS) project, ” in Proceedings of PAC’01 (IEEE, Chicago, IL, 2001).
4. M. Lindroos, C. Oyon, and S. Peggs, “The ESS superconducting linear accelerator,” in Proceedings of SRF’09 [Helmholtz Centre Berlin (HZB-Berichte), Germany, 2009].
5. Industrialization of the nitrogen-doping preparation for SRF cavities for LCLS-II