Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) · 2003 · 13 citations · 2 references
EngineeringElectrical EngineeringMicroelectronicsMicrowave EngineeringPhotonicsElectromagnetic CompatibilityMicrowave System DesignMicrowave Transmission LinesWaveguidesCouplersDeformationMagnetic Field AsymmetryMicrowave Coupler DesignVoltageWaveguide Couplers
Long term plans for CEBAF at Jefferson Lab call for achieving 12 GeV in the middle of the next decade and 24 GeV after 2010. Thus an upgraded cryomodule to more than double the present voltage is under development. A new waveguide coupler system has been designed and prototypes are currently being developed. This coupler, unlike the original, has a nominal Q/sub ext/ of 2.1/spl times/10/sup 7/, reduced sensitivity of Q/sub ext/ to mechanical deformation, reduced field asymmetry within the beam envelope, freedom from window arcing with a single window at 300 K, and is capable of transmitting 6 kW CW both traveling wave and in full reflection.
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