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TY - CONF AU - Pedrocchi, G. AU - Alesini, D. AU - Cardelli, F. AU - Castorina, G. AU - Ficcadenti, L. AU - Gallo, A. AU - Giribono, A. AU - Migliorati, M. AU - Mostacci, A. AU - Palumbo, L. AU - Spataro, B. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - A C-Band RF Mode Launcher with Quadrupole Field Components Cancellation for High Brightness Applications J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - The R&D of high gradient radiofrequency devices is aimed to develop innovative and compact accelerating stuctures based on new manufactoring techniques and materials in order to produce devices operating with the highest accelerating gradient. Recent studies have shown a large increase in the maximum sustained RF surface electric fields in copper structure operating at cryogenic temperature. These novel approaches allow significant performance improvements of RF photoinjectors. Indeed the operation at high surface fields results in considerable increase of electron brilliance. This requires high field quality in the RF photoinjector and specifically in its poweer coupler. In this work we present a novel power coupler for the RF photoinjector. The coupler is a compact C-band TM01 mode launcher with a fourfold symmetry which minimized both the dipole and the quadrupole RF field components. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3638 EP - 3641 KW - quadrupole KW - network KW - GUI KW - brightness KW - linac DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-WEPAB398 UR - https://jacow.org/ipac2021/papers/wepab398.pdf ER -