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Bar group properties in section 3 of the image quality phantom Imaging dose.
| Visible no. of bar groups | Width (mm) | Height (mm) | Corresponding spatial resolution (lp/mm) |
|---|---|---|---|
| 1 | 7.5 | 12.0 | 0.067 |
| 2 | 5.0 | 12.0 | 0.1 |
| 3 | 3.3 | 12.0 | 0.15 |
| 4 | 2.5 | 12.0 | 0.2 |
| 5 | 2.0 | 12.0 | 0.25 |
| 6 | 1.67 | 12.0 | 0.3 |
| 7 | 1.25 | 12.0 | 0.4 |
| 8 | 1.0 | 10.0 | 0.5 |
| 9 | 0.83 | 6.6 | 0.6 |
| 10 | 0.62 | 5.0 | 0.8 |
| 11 | 0.50 | 4.5 | 1 |
