Final answer:
In conventional tomography, the radiographer can control the thickness of the tomographic slice by altering the fulcrum height.
Step-by-step explanation:
In conventional tomography, the radiographer is able to control the thickness of the tomographic slice by altering the fulcrum height. The fulcrum height refers to the distance between the x-ray tube and the point around which the tube and detector array rotate. By adjusting this height, the radiographer can control the thickness of the slice.