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TY - CONF AU - Köszegi, J.M. AU - Alomari, K. AU - Knobloch, J. AU - Kugeler, O. AU - Schmitz, B. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - A Combined Temperature and Magnetic Field Mapping System for SRF Cavities J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - In the past decade, a significant improvement of SRF cavity performance has been achieved, yet a number of performance limiting mechanisms, such as magnetic flux trapping, still exist. We present a diagnostics tool which combines flux expulsion measurement during the superconducting phase transition with temperature mapping during operation. This system has a time resolution for both temperature and magnetic field mapping of 2 ms for full cavity coverage, so that short-lived events, including cavity quenches, can easily be resolved. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1228 EP - 1231 KW - cavity KW - operation KW - SRF KW - niobium KW - experiment DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-TUZGBE5 UR - http://jacow.org/ipac2018/papers/tuzgbe5.pdf ER -