The MIMI (Multiple Image Modality Isocentricity) Phantom is designed to provide a fast and easy method for determining the coincidence of the isocenters described by the laser system, treatment beam, kV/CBCT imaging system and optical positioning systems. Rods are set at 45 degree angles and run through the phantom for quick and accurate 2D/2D and 3D/3D matching, aiming to provide confidence in the mechanical integrity of your entire system.