Design of small-scale gradient coils in magnetic resonance imaging by using the topology optimization method
Pan Hui1, 2, Jia Feng3, †, Liu Zhen-Yu1, ‡, Zaitsev Maxim3, Hennig Juergen3, G Korvink Jan4
       

Coil configurations of y-gradient coils with volume fractions of (a) 0.1, (b) 0.2, (c) 0.3, and (d) 0.4. Here α =100 and p = 5.