The RRR Parameter of the ITER Type Bronze-Route Cr-Coated Nb $_{3}$ Sn Strands After Different Heat Treatments

Residual Resistance Ratio (RRR) is one of the relevant parameters for strands and cables to be used in windings of high field magnet systems. The increase of the cable stability is provided by attaining of the high RRR-values. However, the RRR values of strands comprising the cable could deviate significantly from the average ones.