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@unpublished{kim:srf2023-friba01,
author = {S.H. Kim and D.J. Bice and W. Chang and C. Contreras-Martinez and K. Elliott and G.V. Eremeev and B.M. Guilfoyle and W. Hartung and M.P. Kelly and K.E. McGee and E.S. Metzgar and P.N. Ostroumov and Y.M. Pischalnikov and L. Popielarski and J. Rathke and T. Reid and T. Xu and S. Zhao},
% author = {S.H. Kim and D.J. Bice and W. Chang and C. Contreras-Martinez and K. Elliott and G.V. Eremeev and others},
% author = {S.H. Kim and others},
title = {{SRF R&D for FRIB Linac Energy Upgrade with High-performance Medium-beta Elliptical Cavity CW Cryomodules}},
% booktitle = {Proc. SRF'23},
booktitle = {Proc. Int. Conf. RF Supercond. (SRF'23)},
language = {english},
intype = {presented at the},
series = {International Conference on RF Superconductivity},
number = {21},
venue = {Grand Rapids, MI, USA},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {09},
year = {2023},
note = {presented at SRF'23 in Grand Rapids, MI, USA, unpublished},
abstract = {{Michigan State University is pursuing SRF R&D for FRIB400 upgrade, doubling the FRIB linac beam energy (400 MeV/u for the heaviest uranium beam) using ßopt=0.65 644 MHz 5-cell elliptical cavities. We have achieved unprecedented Q₀ in this cavity class, Q₀ = 3.5·10¹0 at E_{acc} of 17.5 MV/m in a nitrogen-doped bare niobium cavity in collaboration with FNAL and ANL. The next missions are achieving such high Q₀ in jacketed cavities and in cryomodules, achieving field-emission free performance at Epeak of 40 MV/m with reproducibility, developing a compact two-window high-power fundamental power coupler (15 kW CW), and achieving stable resonance control of cavities integrated with tuners in cryomodules. In this talk, we will present progress of the SRF R&D and discuss future plan.}},
}