Comparison of DC and pulsed critical current characterisation of NbTi superconducting wires

Abstract. The use of pulsed magnetic fields and currents for transport critical current characterisation has many potential benefits, but introduces challenges in obtaining measurements consistent with conventional DC characterisation for some types of sample. This will be illustrated by comparative DC and pulsed critical current testing of two dissimilar NbTi conductors. The factors influencing pulsed measurements will be identified, the prospects for pulsed critical current testing assessed, and recommendations made for obtaining good agreement with DC characterisation. Streszczenie. Użycie impulsowego prądu i pola magnetycznego do wyznaczania krytycznego natężenia prądu przewodów nadprzewodnikowyc