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Suppression of Higher Order Modes in an Array of Cavities Using Waveguides
An application of additional harmonic cavities operating at multiplies of the main RF system frequency of 400 MHz is currently under discussionin the framework of the High Luminosity LHC upgrade program [1, 2] . A structure consisting of two 800 MHz single cell superconducting cavities with grooved beam pipes coupled by drift tubes has been suggested for implementation. However, it is desirable to increase the number of single cells installed in one cryomodule in order to decrease the number ofdoi:10.1016/j.phpro.2015.09.237 fatcat:5o2gmwlmwnfktnk4slonxcjs4i