Recent developments in superconducting corrector magnet fabrication and measurements

Significant effort was devoted to the development and testing of corrector coils destined for use on the Superconducting Super Collider (SSC). Several process technologies used in the manufacture of correction coils were evaluated, including the "direct wire" process. Fabrication of corrector coils using the direct wire process involves the precision placement of superconducting wire coated with adhesive using a numerically controlled five-axis mill. This process is capable of supporting the fabrication of several magnet types and shapes. Improvements in the direct wire process resulted in the construction of three corrector coils configured as dipole magnets that exhibited excellent performance characteristics during power testing. A high bandwidth data acquisition system capable of correlating signals from a quench antenna array with magnet voltage taps was developed to analyze the performance characteristics of these corrector magnets. This paper describes the fabrication techniques, the analysis system, and performance results of these superconducting corrector coils.<>