Quench plateau, coil cure temperature, and copper-to-superconductor ratio in recent 1.8 m SSC model dipoles

摘要

The ratio of the conductor-limited quench currents to the short-sample prediction, I(sub Q)/I(sub ss), is tabulated for a series of 1.8 m-long SSC model collider dipoles. Sixteen of these magnets have 40 mm aperture, four have 50 mm aperture. For these magnets, the coil cure temperature ranged from 135 C to 217 C and the ratio of copper-to-superconductor ranged from 1.27 to 1.54. At 4.35 K, the value of I(sub Q)I(sub ss) was between 1.00 and 1.04 with no clear dependence on cure temperature or Cu:S.C. ratio.