Transport critical current measurements in very high pulsed magnetic fields

Practical conductors incorporating high temperature superconductors are now available commercially in tape form. These are capable of sustaining supercurrents in magnetic fields in excess of 20 tesla - with all that implies for the superconducting magnet industry. We outline our attempts to measure transport critical currents in pulsed magnetic fields, up to the 50T region, on practical artefacts such as coils. We also discuss pulsed magnet technology and describe promising attempts to model the effects seen in our measurements and draw optimistic conclusions about the viability of the technique for routine, quality assurance measurements well in excess of 20T - the present day-to-day limit for continuous fields