Fisher B J, Dillon N, Carpenter T A, Hall L D
Herchel Smith Laboratory for Medicinal Chemistry, University of Cambridge School of Clinical Medicine, United Kingdom.
Magn Reson Imaging. 1997;15(3):369-76. doi: 10.1016/s0730-725x(96)00371-2.
A biplanar z-gradient coil has been designed using a genetic algorithm, and its efficiency for producing a gradient along the axis of a solenoid magnet compared to that of a conventional Maxwell coil set. Coils of 21.8 cm by 20.9 cm area and 10 cm separation give 0.37 m Tm-1 A-1 with standard and maximum deviations of 2.6 and 13.1% of this value over an optimised cuboid region of 12 by 15 by 1.8 cm. The experimentally useable linear volume extends beyond this to 50% of the separation between the planes. Design data are also given for a transverse gradient set.
