Köszegi, J.-M.; Schmitz, B.; Alomari, K.; Kugeler, O.; Knobloch, J.: A Combined Temperature and Magnetic Field Mapping System for SRF Cavities. In: Shane Koscielniak ... [Ed.] : Proceedings of the 9th International Particle Accelerator Conference, Vancouver, BC, CanadaIPAC, 2018. - ISBN 978-3-95450-184-7, p. TUZGBE5/1-4
http://accelconf.web.cern.ch/AccelConf/ipac2018/papers/tuzgbe5.pdf
Open Access Version
Abstract:
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.