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Thickness measurements of the ST phantoms. The number in the round parentheses is the uncertainty in the last one or two significant figures of the corresponding value.
| Material | Thickness (mm) | |||
|---|---|---|---|---|
| POM | 1.10(5) | 1.89(5) | 3.23(3) | 4.36(3) |
| Resin | 1.10(5) | 2.18(5) | 3.05(3) | 4.19(3) |
| Wax | 1.47(8) | 2.04(8) | 3.48(8) | 4.01(5) |
