Optimal magnetic probes location for current reconstruction in multistrands superconducting cables

The critical current in multistrand superconducting (SC) cables is usually lower than expected due to current imbalance among strands and early current sharing. It is thus crucial to be able to detect the current distribution in SC cables to assess their stability properties. Due to the ill-conditioning of the problem, the reconstruction accuracy may prove very sensitive to measurement noise and to the uncertainty of the numerical data. In this work, a possible allocation strategy for the magnetic probes is discussed, aimed at optimization of the reconstruction process.