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| Abstract |
Scanning Hall-probe microscopy is a very powerful technique for the characterization of local properties in superconducting tape. On the other hand, the quantitative results can only be obtained with ...a known distance between the Hall-sensor and the sample. In this study, we have proposed an estimation method of such a distance without any gap sensor. Considering the boundary condition that current should be zero outside of the sample, we have succeeded in estimating such a distance only from a measured distribution of magnetic field. This method will be a key technology for the characterization of long superconducting tapes by reel-to-reel magnetic microscopy where there would be some possibility of fluctuation of the distance due to vibration at a high-speed measurement.show more
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