Study of Nb/sub 3/Sn strands for Fermilab's high field dipole models

Fermilab is developing 11 T superconducting dipole magnets for future accelerators based on Nb/sub 3/Sn conductors. Multifilamentary Nb/sub 3/Sn strands 1 mm in diameter produced with the modified jelly roll and powder-in-tube technologies were purchased from OST and SMI respectively. They are herein fully characterized by I/sub c/, n-value, residual resistivity ratio, and magnetization. Results of heat treatment optimization studies are also presented for the OST strand.