The main components of the CyberKnife with Sychrony are: (1) Linear Accelerator (LINAC) mounted on robotic arm; (2) Two flat panel cameras positioned perpindicular to diagnostic x-ray sources mounted to ceiling; (3) Synchrony-tracking vest with LED markers attached; (4) Camera array which holds three CCD cameras; (5) Synchrony and Target Locating Computers. Image courtesy Accuray Incorporated