title: Optimum designs of circular coil system for generating nonuniform axial magnetic fields.
abstract: Optimum shapes are derived for coaxial circular coil systems to produce, for a given wire current density, the greatest d(2)B/dx(2) and dB/dx.
authors.affiliation: Department of Electronic and Electrical Engineering, Loughborough University of Technology, Loughborough Leiscestershire LE11 3TU, England.
authors.forename: P N
authors.initials: PN
authors.lastname: Murgatroyd