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Arrangement of inserts in Row 4 of the phantom, for the three configurations
| Position | Blank | Complete 1 | Complete 2 |
|---|---|---|---|
| A | CNRall | CNRdelrin | CNRair |
| B | PMMA | CNRair | CNRdelrin |
| C | PMMA | CNRPTFE | CNRLDPE |
| D | PMMA | MPV | MPV |
| E | PMMA | CNRLDPE | CNRPTFE |
| F | PMMA | CNRaluminium | CNRaluminium |
CNR, contrast-to-noise ratio; LDPE, low-density polyethylene; MPV, mean pixel value; PMMA, polymethylmethacrylate; PTFE, polytetrafluoroethylene.
