JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB
AU - Kim, S.H.
AU - Bice, D.J.
AU - Chang, W.
AU - Contreras-Martinez, C.
AU - Elliott, K.
AU - Eremeev, G.V.
AU - Guilfoyle, B.M.
AU - Hartung, W.
AU - Kelly, M.P.
AU - McGee, K.E.
AU - Metzgar, E.S.
AU - Ostroumov, P.N.
AU - Pischalnikov, Y.M.
AU - Popielarski, L.
AU - Rathke, J.
AU - Reid, T.
AU - Xu, T.
AU - Zhao, S.
ED - Saito, Kenji
ED - Xu, Ting
ED - Sakamoto, Naruhiko
ED - Schaa, Volker R.W.
ED - Thomas, Paul W.
TI - SRF R&D for FRIB Linac Energy Upgrade with High-performance Medium-beta Elliptical Cavity CW Cryomodules
J2 - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023
CY - Grand Rapids, MI, USA
T2 - International Conference on RF Superconductivity
T3 - 21
LA - english
AB - 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.
PB - JACoW Publishing
CP - Geneva, Switzerland
ER -