Premium
Planar gradient coil design by scaling the spatial frequencies of minimum‐inductance current density
Author(s) -
Lee Soo Y.,
Park Bu S.,
Yi Jeong H.,
Yi Wan
Publication year - 1997
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910380525
Subject(s) - electromagnetic coil , inductance , planar , scaling , linearity , magnetic field , search coil , nuclear magnetic resonance , physics , optics , computational physics , materials science , mathematics , geometry , magnetic flux , computer science , voltage , quantum mechanics , computer graphics (images)
Gradient coil inductance has been remarkably reduced by the minimum‐inductance design technique, which minimizes the magnetic energy stored by the gradient coil. The planar gradient coil designed by this technique, however, often has poor magnetic field linearity. Scaling the spatial frequencies of the current density function derived by this method, the magnetic field linearity of the planar gradient coil can be greatly improved with a small sacrifice of gradient coil inductance. A figure of merit of the planar gradient coil has been found to be improved by scaling the spatial frequencies.