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@InProceedings{ross:napac2019-mozba1, author = {M.C. Ross}, title = {{LCLS-II SC Linac: Challenges and Status}}, booktitle = {Proc. NAPAC'19}, pages = {51--56}, paper = {MOZBA1}, language = {english}, keywords = {cavity, cryomodule, SRF, linac, FEL}, venue = {Lansing, MI, USA}, series = {North American Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {10}, year = {2019}, issn = {2673-7000}, isbn = {978-3-95450-223-3}, doi = {10.18429/JACoW-NAPAC2019-MOZBA1}, url = {http://jacow.org/napac2019/papers/mozba1.pdf}, note = {https://doi.org/10.18429/JACoW-NAPAC2019-MOZBA1}, abstract = {The Linac Coherent Light Source II (LCLS-II) project requires the assembly, test, and installation of 37 cry-omodules (CM) in order to deliver a 4 GeV CW electron beam to the FEL undulators for production of both hard and soft X-ray pulses at a repetition rate of up to 1 MHz. All of the cryomodules will operation in continuous wave mode, with 35 operating at 1.3 GHz for acceleration and 2 operating at 3.9 GHz to linearize the longitudinal beam profile. The assembly and testing of the 1.3 GHz cry-omodules is nearing completion and the 3.9 GHz cry-omodules work is entering to assembly and testing phase. Roughly 60% of the cryomodules have been shipped to SLAC for installation in the accelerator enclosure. The status and challenges of these efforts will be reported in this paper.}, }