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@InProceedings{kim:napac2019-wezba2,
author = {S.H. Kim and H. Ao and F. Casagrande and W. Chang and C. Compton and A. Facco and V. Ganni and E. Gutierrez and W. Hartung and N. Hasan and P. Knudsen and T.L. Larter and H. Maniar and S.J. Miller and D.G. Morris and P.N. Ostroumov and A.S. Plastun and J.T. Popielarski and L. Popielarski and H.T. Ren and K. Saito and M. Thrush and D.R. Victory and J. Wei and M. Xu and T. Xu and Y. Yamazaki and C. Zhang and S. Zhao},
% author = {S.H. Kim and H. Ao and F. Casagrande and W. Chang and C. Compton and A. Facco and others},
% author = {S.H. Kim and others},
title = {{Experience and Lessons in FRIB Superconducting Quarter-Wave Resonator Commissioning}},
booktitle = {Proc. NAPAC'19},
pages = {646--649},
paper = {WEZBA2},
language = {english},
keywords = {cavity, cryomodule, MMI, linac, controls},
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-WEZBA2},
url = {http://jacow.org/napac2019/papers/wezba2.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-WEZBA2},
abstract = {The superconducting (SC) linear accelerator (linac) for the Facility for Rare Isotope Beams (FRIB) has one quarter-wave resonator (QWR) segment and two half-wave resonator (HWR) segments. The first linac segment (LS1) contains twelve β = 0.041 and ninety-two β = 0.085 QWRs operating at 80.5 MHz, and thirty-nine SC solenoids. Superconducting radiofrequency (SRF) commissioning and beam commissioning of LS1 was completed in April 2019. The design accelerating gradients (5.1 MV/m for β = 0.041 and 5.6 MV/m for β = 0.085) were achieved in all cavities with no multipacting or field emission issues. The cavity field met the design goals: peak-to-peak stability of ±1% in amplitude and ±1° in phase. We achieved 20.3 MeV/u ion beams of Ar, Kr, Ne, and Xe with LS1. In this paper, we will discuss lessons learned from the SRF commissioning of the cryomodules and methods developed for efficient testing, conditioning, and commissioning of more than 100 SC cavities, each with its own independent RF system.},
}