  We report on the use of radio-frequency optical atomic magnetometers for
magnetic induction tomography measurements. We demonstrate the imaging of dummy
targets of varying conductivities placed in the proximity of the sensor, in an
unshielded environment at room-temperature and without background subtraction.
The images produced by the system accurately reproduce the characteristics of
the actual objects. Furthermore, we perform finite element simulations in order
to assess the potential for measuring low-conductivity biological tissues with
our system. Our results demonstrate the feasibility of an instrument based on
optical atomic magnetometers for magnetic induction tomography imaging of
biological samples, in particular for mapping anomalous conductivity in the
heart.
