Patent ID: 7885376

Claim:
An X-ray CT apparatus, comprising: a rotating part configured to mount an X-ray tube and a detector including detecting elements arranged in a plurality of rows and each of the detecting elements having a width of 0.5 mm or less, wherein the rotating part is configured to rotate at a speed faster than 0.5 second/rotation by an operation of a rotary drive structure, and the rotating part has a non-tilt structure; a fixed frame as a single plate-like member configured to support the rotating part and prevent the rotating part from tilting, the fixed frame including a lower supporting part; and a stand configured to support the fixed frame and configured to be settled to a floor, wherein the stand includes: a lower member configured to be settled to the floor, and the lower member is directly connected to the lower supporting part of the fixed frame; supporters each configured to support each side of the fixed frame and configured to be settled to the lower member; and a fixing member configured to fix a lower part of the fixed frame to the lower member; a roller positioned on the stand; and a load cell configured to measure a load variation applied to the roller via by the rotating part.