1. A non-rotational Computerized Tomography (CT) system, comprising: a plurality of X-ray generation units spaced apart from an examination target by a regular distance and radially arranged around the examination target, the X-ray generation units having position correction sensors arranged in portions thereof; a plurality of X-ray detection units arranged in separated spaces between the X-ray generation units and installed to alternate with the X-ray generation units, the X-ray detection units having position correction sensors arranged in portions thereof; and a control unit configured to receive signals from the position correction sensors arranged on the X-ray generation units and the X-ray detection units, and adjust positions of corresponding X-ray generation units and X-ray detection units so that the corresponding X-ray generation units and X-ray detection units exactly face each other.