Magnetic resonance apparatus is provided comprising a magnet having a
first pair of coils arranged in a plane. The coils are operable in a
counter-running manner when in use so as to generate a sensitive volume
of magnetic field spaced apart from said plane. The magnetic field in the
sensitive volume is arranged to have sufficient uniformity to enable
magnetic resonance signals to be obtained from a target when located
within the sensitive volume. The magnetic field direction Z is oriented
to lie substantially parallel to the planes. The coils are arranged such
that the sensitive volume is elongate in a direction X substantially
parallel to the planes. A drive system is provided to cause relative
movement between the magnet and the target so as to allow the sensitive
volume to be moved with respect to the target.