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Peak and valley doses measured by film dosimetry at 1, 5, and 10 mm depth in a solid water phantom (Fig. 1). PVDRs in this domain are similar to PVDRs expected at the ESRF for a 20 × 20 mm2 microbeam field.
| Depth (mm) | 1 | 5 | 10 |
|---|---|---|---|
| Peak (mGy/s) | 300 ± 20 | 230 ± 10 | 170 ± 10 |
| Valley (mGy/s) | 10.2 ± 0.5 | 11.2 ± 0.5 | 10.7 ± 0.5 |
| PVDR | 30 ± 3 | 21 ± 2 | 15.5 ± 1.5 |
