Patent ID: 8308361

Claim:
An imaging apparatus comprising: a generally O-shaped gantry ring including an x-ray source and a detector array opposed to the source; a support structure for supporting the gantry ring; and a ring positioning unit that secures the gantry ring to the support structure in a cantilevered manner the ring positioning unit comprising: an in-out positioner including a base plate and a top plate, the top plate movable relative to the base plate, for translating the gantry towards or away from the support structure by moving the top plate relative to the base plate; a vertical positioner including a base plate and a top plate, the top plate movable relative to the base plate, for translating the gantry in a vertical direction relative to the support structure by moving the top plate relative to the base plate; a lateral positioner including a base plate and a top plate, the top plate movable relative to the base plate, for translating the gantry in a lateral direction relative to the support structure by moving the top plate relative to the base plate; a tilt positioner for rotating the gantry relative to the support structure about at least one axis; and a bracket structure secured to any two of the top plates of the in-out positioner, the vertical positioner and the lateral positioner.