14. Technical Specifications
146 vatech A9 (Model name: PHT-30CSS) User Manual
14.1.2 Image Magnification
Mode FDD (mm) FOD (mm) ODD (mm) Magnification
PANO 584.6 425.6 159 1.374
CBCT 584.6 353.6 231 1.653
CEPH 1745 1524 221 1.145
FDD: Focal Spot to Detector Distance
FOD: Focal Spot to Object Distance
ODD: Object to Detector Distance (ODD = FDD - FOD)
Magnification = FDD/FOD