Computer rendering of the protoMIRAX X-ray Camera. Left: exploded diagram of the XRC, showing, from top to bottom, the coded mask, collimator, aluminum foil support plate, detector system, detector electronics and power supply boxes, and battery pack. Right: the assembled XRC with passive shielding and structural parts, including the elevation axis support. Also shown are one of protoMIRAX’s two star cameras (top right) and the elevation driving mechanism (bottom left) based on a ball screw.