Quench behavior of 1.5 m model SSC collider dipole magnets at Fermilab

The quench behaviors of 10 model dipole magnets for the Superconducting Super Collider (SSC) have been studied. Horizontally split yoke, vertically split yoke, and the latest 50 mm diameter design were compared with regard to the quench characteristics. The excitation results showed a good progress of the R&D program. SSC magnets can now be built with no training to the required field of 6.65 T at 4.3 K.<>