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TY - UNPB AU - Romanenko, A. AU - Checchin, M. AU - Khabiboulline, T.N. AU - Martinello, M. TI - Quality Factor Field Dependence Down to Very Low Fields J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - Potential application of SRF cavities for quantum computing requires their operation in the limit of very low fields (down to single photon) and temperatures (<100 mK). If niobium cavities are advantageous for this field depends on the Q value, which can be achieved, and therefore requires detailed studies in the low field Q slope regime. Here we report the first attempt toward such a characterization by extending the low field Q slope measurements in 1.3 GHz single cell cavities down to the lowest possible fields. PB - JACoW CY - Geneva, Switzerland ER -