In an adjustment device and method for a 
tomography apparatus for aligning of a 
patient support device and an acquisition 
system relative to one another, a reference 
laser projects onto a reference element associated with the 
patient support device, the reference 
laser being directly associated with a rotary frame of the acquisition 
system, such that tolerances in the alignment between the reference 
laser and the acquisition 
system are prevented. Moreover, due to the arrangement of the reference laser directly on the rotary frame of the 
tomography apparatus, a simple calibration between laser beam and the acquisition plane of the acquisition system is ensured by a displacement of the reference laser in two different rotation angle positions which exhibit an angular interval therebetween of substantially 180 degrees.