The lecture will highlight some of the scientific and technical challenges in field computation and magnetic measurements for the electromagnetic design, construction, and testing of accelerator magnets. We show that a large number of subjects taught in graduate university courses on electromagnetic field theory find their real-world applications to accelerator magnets and other large-scale applications. In addition to the technical challenges, there are computational challenges for the design and measurements of magnets. Commercial software has proven hardly appropriate for the field optimization of the superconducting LHC magnets. A program package based on Boundary and Finite Elements was therefore developed at CERN to provide for accurate field calculation routines that are especially suited to the investigation of superconducting magnets, i.e., accurate calculation of the field harmonics, field distribution within the superconducting coil, superconductor magnetization, and dynamic effects such as interstrand and interfilament coupling currents. This approach has inverted the classical design process wherein numerical field calculation is performed for only a limited number of numerical models that only approximate the actual engineering design. Field simulation is now routinely used as an approach toward an integrated design of superconducting magnets, as well as the simulation and post-processing of raw data from magnetic measurements.

Stephan Russenschuck studied Electrical Engineering at the Technical University Darmstadt (TUD), Germany. He received the Dipl.-Ing degree in 1986 and the Dr.-Ing. degree in 1990 both from the Technical University Darmstadt.  In 2000 he was recognized as a University Lecturer (Habilitation) for Theory of Electromagnetic Fields at the University of Vienna, Austria.
S. Russenschuck is a senior staff member in the Accelerator Technology (TE) Department of the European Organization for Nuclear Research, CERN, Geneva, Switzerland. He is the leader of the magnetic measurement section in the TE department and the chairman of the technical and doctoral student committee (TSC). During the construction period of the LHC he was responsible for the electromagnetic design of the LHC main dipole magnets and later for the magnet polarities and the electrical quality assurance of the LHC machine.