Abstract: Apparatus for x-ray CT scanning of an object includes an x-ray generator 1 mounted on a first support 3 on an outer ring 4 and an x-ray detector 2 mounted on a second support 10 on an inner ring 11, and a drive mechanism arranged to rotate the outer and inner rings 4, 11. The outer and inner rings have a first common axis of rotation and the diameter of the outer ring 4 is greater than the diameter of the inner ring 11 The drive mechanism includes a gearing arrangement connecting the outer and inner rings 4,11. The gearing arrangement comprises first and second toothed rotary gears 14,16.

Abstract: Apparatus for x-ray CT scanning of an object comprises an x-ray generator (1) mounted on a first support (3) on an outer ring (4) and an x-ray detector (2) mounted on a second support (10) on an inner ring (11), and a drive mechanism arranged to rotate the outer and inner rings (4, 11). The outer and inner rings have a first common axis of rotation and the diameter of the outer ring (4) is greater than the diameter of the inner ring (11). The first and second supports (3, 10) are positioned diametrically opposite each other with the second support (10) on the far side of the inner ring (11) with respect to the position of the outer ring (4). The inner surface of the outer ring (4) and the outer surface of the inner ring (11) are formed with teeth, and the drive mechanism includes a gearing arrangement connecting the outer and inner rings (4, 11).

Abstract: An installation for enabling the scanning of a leg (5) of a horse (8) with a magnetic resonance imaging (MRI) device comprises a floor section (90) on which the horse (8) stands with the leg to be scanned. The floor section (90) is mounted above a support surface (10) for the MRI device and includes at least one floor member which is moveable to expose an opening for accommodating a magnetic scanning element (1) adjacent the leg. The floor section (90) may have three moveable floor members and either pair of adjacent floor members may be moveable to expose a pair of slots or openings for accommodating the magnetic scanning element (1) on opposite sides of the leg supported on the floor section (90) between the pair of openings.