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TY - CONF AU - Köszegi, J.M. AU - Knobloch, J. AU - Kugeler, O. ED - Schaa, Volker RW ED - He, Yuan ED - Li, Lu ED - Zhao, Ning TI - Simulation of the Thermoelectrically Generated Magnetic Field in a SC Nine-cell Cavity J2 - Proc. of SRF2017, Lanzhou, China, July 17-21, 2017 C1 - Lanzhou, China T2 - International Conference on RF Superconductivity T3 - 18 LA - english AB - Several studies showed that thermocurrents generate a magnetic field in a horizontal cavity test assembly or cryomodul, which may get trapped during the superconducting phase transition. The trapped flux causes additional dissipation during operation and can therefore significantly degrade the cavity's quality factor. We simulated the distribution of the generated magnetic field for different temperature distributions and compared the results to experimental findings. Furthermore, the impact of a growing superconducting area was investigated. The simulations complement the experimental studies because measurements were only feasible with a limited number of probes and restricted to selected locations and orientations. The simulations allow to analyze this data in the context of the whole system. PB - JACoW CP - Geneva, Switzerland SP - 771 EP - 774 KW - ion KW - cavity KW - simulation KW - experiment KW - ECR DA - 2018/01 PY - 2018 SN - 978-3-95450-191-5 DO - 10.18429/JACoW-SRF2017-THPB019 UR - http://jacow.org/srf2017/papers/thpb019.pdf ER -