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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: J Magn Reson. 2011 Jul 23;212(2):280–288. doi: 10.1016/j.jmr.2011.07.005

Fig. 1. DESIGN AND IMPLEMENTATION OF THE MULTI-COIL SETUP.

Fig. 1

Theoretical design and experimental implementation of the 48-channel multi-coil setup for magnetic field homogenization of the human brain at 7 Tesla. (A) Magnetic field modeling for dynamic MC shimming in axial slices was achieved through superposition of 48 basis field shapes that were generated by a matrix of 48 independently driven (as indicated by the varying color coding), circular coils. (B) In its experimental realization, the coil matrix consisting of 4 rows of 12 coils (100 turns, center diameter 47 mm) was mounted on the surface of an acrylic structure together with probes for temperature monitoring (not visible). (C) The close integration of the MC setup with the available RF coil array allowed their simultaneous use. Interactions of the MC setup with the centered, single ring of 8 RF coil elements were minimized by design through avoidance of physical overlap of both systems.