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Abstract #3250

Actively Shielded Two-channel Transverse MRI Gradient Coil Numerical Design Using Discrete Wire Method

Haile Baye Kassahun1, Sadeq S Alsharafi1, Ahmed M Badawi1, and AbdEl-Monem M El-Sharkawy1
1Systems and Biomedical Engineering, Cairo University, Cairo, Egypt


A two-channel, self-shielded, cylindrical, transverse gradient coil is numerically designed. The four quadrants of both the inner and outer cylinders were each divided into two sections. All symmetric inner sections of the primary and corresponding shielding coil turns are assigned to the first channel where the outer enclosing sections belong to the second channel. Quasi-elliptic curves are used for coil tracks design. Achieving a comparable target gradient field, the DC dissipated power of a two-channel coil is lower compared to a conventional coil designed with similar dimensions and number of turns by at least 20%, thereby reducing ohmic losses.

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