Test results from 1.8-m SSC model dipoles

Results are reported from the first four 1.8-m-long dipoles built as part of the Superconducting Super Collider research and development program. Except for length, these models have the features of the SSC design, which is based on a two-layer cos theta coil with 4-cm aperture. As compared with 17 m, the SSC design length, these 1.8-m magnets are a faster and more economical way of testing changes in field shape, the ratio of copper to superconductor, cable support at the coil center and ends, and similar variables. A review of the magnets´ design focuses on the improvements compared with previous test designs studied. The test results reported cover B/I-field uniformity and quench performance.