The present invention relates to an apparatus and method for measuring a current density in a conductive material. The apparatus and method use an algorithm and an extension to the Fourier transform approach that allows transport currents to be treated accurately. Due to its speed, the resulting algorithm is ideally suited for high-resolution and high-throughput magnetic imaging of superconducting tape in real time.
STATEMENT REGARDING FEDERAL RIGHTS
 This invention was made with government support under Contract No. DE-AC52-06NA25396, awarded by the U.S. Department of Energy. The government has certain rights in the invention.