Keckert, S.; Kugeler, O.; Knobloch, J.: Error Analysis of Surface Resistance Fits to Experimental Data. In: Volker RW Schaa ... [Ed.] : SRF 2017, Proceedings of the 18th International Conference on RF SuperconductivityGeneve: JACoW, 2018. - ISBN 978-3-95450-191-5, p. THPB052/859-862
http://accelconf.web.cern.ch/AccelConf/srf2017/papers/thpb052.pdf
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Abstract:
Superconducting material properties such as energy gap, mean free path or residual resistance are commonly extracted by fitting experimental surface resistance data. Depending on the measurement setup, both, temperature range and the number of points are limited. In order to obtain significant results, systematic as well as statistical uncertainties have to be taken into account. In this contribution different classes of errors and their impact on systematic and statistical deviations of the fitted parameters are discussed. In particular, past measurements by various groups have yielded contradictory conclusions that, we believe, result from the use of insufficient data in the necessary temperature range. Furthermore, this study is applied to the boundary conditions of the Quadrupole Resonator and its measurement accuracy.