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@unpublished{zhou:ipac2021-frxa04,
author = {F. Zhou and C. Adolphsen and A.L. Benwell and G.W. Brown and D. Dowell and M.P. Dunning and S. Gilevich and K. Grouev and G. Huang and B.T. Jacobson and X. Liu and A. Miahnahri and F. Sannibale and J.F. Schmerge and T. Vecchione},
% author = {F. Zhou and C. Adolphsen and A.L. Benwell and G.W. Brown and D. Dowell and M.P. Dunning and others},
% author = {F. Zhou and others},
title = {{Commissioning results of LCLS-II MHz repetition rate electron source}},
booktitle = {Proc. IPAC'21},
language = {english},
intype = {presented at the},
series = {International Particle Accelerator Conference},
number = {12},
venue = {Campinas, SP, Brazil},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
note = {presented at IPAC'21 in Campinas, SP, Brazil, unpublished},
abstract = {{A 4 GeV 1.3 GHz superconducting linac is being constructed at SLAC as part of the X-ray free electron laser project (LCLS-II). The first 3-meter of the electron source that includes a normal conducting 185.7MHz CW RF gun, 2-cell 1.3 GHz CW RF buncher, and a loadlock system for cathode changes was designed and built by LBNL based on their experience with similar one for advanced photo-injector experiment program. The electron beam is designed to operate at a high repetition rate, up to 1 MHz. Since summer of 2018 we started LCLS-II injector source commissioning immediately after the major installation completion. This paper presents major commissioning results including achievements of ultra-high vacuum, RF processing to CW nominal power, dark current characterization and mitigation, and high-brightness electron beam measurements.}},
}