Electromagnet current constraints

A method of forming a magnetic resonance imaging system, the method comprising:

• forming an electromagnet, wherein forming the electromagnet includes:
• forming, in a conductive member, a first set of one or more non-conductive paths that define at least one conductive channel;
• determining a portion of the at least one conductive channel to which electric current is to be constrained when electric current is applied to the at least one conductive channel;
• forming, in the conductor, a second set of one or more non-conductive paths that constrain the electric current along the determined portion of the at least one conductive channel when electric current is applied to the at least one conductive channel;
• coupling the electromagnet to a power amplifier configured to apply an electric current to the electromagnet;
• assembling the electromagnet and power amplifier with a housing having a bore in which a subject to be imaged is placed and a main magnet accommodated by the housing and configured to generate a substantially uniform magnetic field within the bore.