Approximated elliptical coils in magnetic particle imaging

The paper presented results of simulated and measured magnetic fields of an approximated elliptical coil. The simulation values are coincided with the measurement values. Using the relative error as difference metric, the difference between simulation and measurement is presented as well. The visual comparison between the images as well as the resulting values of the relative error show only a minimal difference in the inner zone of the coils. The gradient values for the prototype coil arrangement for x, y and z direction were also shown. With an increasing side length the gradients in x and y direction decrease, while the gradient in z direction slightly increases.