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TY - UNPB AU - Devanz, G. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - ESS Technology Development at IPNO and CEA Paris-Saclay J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - The French In-kind contribution to the superconducting linac of the European Spallation Source ESS consists in the development from design to delivery of the thirteen spoke cryomodules by CNRS IPN Orsay and of the nine medium beta and twenty-one high beta elliptical cavity cryomodules by CEA Paris-Saclay. Recently, prototype cryomodules serving the purpose of demontrating the chosen technology, one for spokes, one for medium beta ellipticals have been built and tested, with additional contributions of Uppsala University and INFN Lasa. The component design and performance in the recent cryomodule tests at 2 K are presented, as well as the individual testing activities of pre-series and series components. PB - JACoW Publishing CP - Geneva, Switzerland ER -