The results are presented on production of NbTi based conductors in co
pper matrix with wire diameters from 0.8 to 1.75 mm; filament numbers
12 - 42, filament diameters 55 - 130 mu m and packing factors 6.5 - 23
%, applicated in various NMR and MRI magnet systems. It is shown, that
wire length could be tens kilometres. Critical current, RRR and diele
ctric strength in all cases exceed requirements.