Effect of Manufacturing Errors on Field Quality of Dipole Magnets for the SSC

For superconducting dipole magnets of the sort proposed for the Superconducting Super Collider, the effects of various random manufacturing errors upon random magnet-to-magnet magnetic-field aberrations are analyzed. The errors considered are ones that are directly related to manufacturing tolerances and measurable dimensions of parts and materials. These errors affect the position of the boundaries of each layer of conductors in each quadrant and the positions of conductors within those boundaries. Manufacturing errors were estimated for the Fermilab Tevatron magnets and the BNL CBA magnets. The estimates were then adjusted so that the calculated field aberrations matched the measured values. Those errors were then applied to the SSC magnet reference designs currently under study in order to obtain estimated field aberrations.