Table 1 Technical characteristics of the digital cephalometric X-ray unit
Parameter | Specification |
|---|---|
Active area of detector | CCD-detector, 230 mm × 6.48 mm |
Physical pixel size | 0.027 mm |
Processed pixel size (4 × 4 binning) | 0.104 mm |
Source-to-detector-distance | 1714 mm |
Source-to-object-distance (object: median-sagittal plane of patient) | 1500 mm |
Magnification factor in median-sagittal plane | 1.14 |
Exposition time (slot technique) | 4.7 to 9.4 s |
Focal spot size | 0.5 (IEC 336) |