Magnetic field simulation of golay and maxwell coils

摘要: Magnetic field gradient coils are essential in obtaining accurate magnetic resonance imaging (MRI) or nuclear (NMR) signals by generating each x, y and z direction. Two of the parameters to determine performance such linearity uniformity. This research emphasizes on analysis geometrical effect conventional Golay-Maxwell pair these two through computer simulation. The results show that ? d affect Golay coil’s gradient. Usable volume is improved 50% while strength increased 11% when 1600 compared original 1200. increase usable volume, which a maximum 3374 cm3 at 0:8r but loss 36% -0.34 mT/m 0:2r. other coil found not much generated because reasons; longitudinal sections do contribute Bz generation outer arcs just acting as current return paths. For Maxwell coil, can be until 19196.128 2:0r although value obtained lower -0.066 1:2r. Application wise, higher bigger better since resolution improved, mention, specimen accomodation. A simulation written fully Open-source environment feature variation output well faster vectorized algorithm. will definitely provide useful information for designers without need physical development prototype.