Magnetic and mechanical considerations in the design of the SSC collider dipole magnet end region

The end regions of the Superconducting Super Collider (SSC) collider dipole magnets. (CDMs) were designed to meet both magnetic and mechanical requirements. The authors present an optimized end design for CDM magnets that is mechanically producible and possesses desirable magnetic field quality, peak field, and magnetic length properties. A three-dimensional magnetic field distribution was calculated for this end-turn design using the finite element program TOSCA. The effective magnetic length, integrated multipole content, and peak fields are extracted from the results of the finite element model. These results compare favorably with those from a second analysis program, ENDTURN, that is based on an analytic solution to the defining field equations.<>