title: A method for the calculation of currents on shielded gradient coils.
abstract: Alternate expressions for the current density on the shielding surface of a gradient coil are derived for cylindrical, planar, and hyperbolic gradient coils. For the planar and hyperbolic geometries, these expressions allow more rapid high-precision calculations of current densities than the conventional solution.
authors.affiliation: Radiologic Imaging Laboratory, Toshiba America MRI, Inc., South San Francisco, California 94080, USA.
authors.forename: J W
authors.initials: JW
authors.lastname: Carlson
authors.forename: L
authors.initials: L
authors.lastname: Zha
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008280:Magnetics; D008433:Mathematics