Design and construction experience with collet end clamps for 50 mm aperture SSC collider dipoles

摘要

Collet end clamps employed on full length and model SSC dipole magnets designed and built at Fermilab are described. Experimental data are presented for the baseline Fermilab design. Tests using pressure sensitive film to register the midplane and pole coil pre- stresses in the end clamp region are reviewed. Theoretical calculations address end clamp mechanics at room temperature, liquid helium temperature, and under magnetic excitation.