Table 3.
Variations in the longitudinally averaged dose around the circumference of the MCVC applicator calculated using TG‐43, sACE, sACE‐20 mm, hACE, and measured using film. Percentages are relative to the mean dose and are given in parentheses. Expanded (k = 2) uncertainties are given
| Channel/s | Material in grooves | Calculation/measurement method | Maximum Dose variation [cGy] (%) | Mean Dose (cGy) | Dose calc. time (min) | No. of transport directions (primary/residual) |
|---|---|---|---|---|---|---|
| Central | Air | sACE | 20 ± 66 (4 ± 14) | 467 ± 46 | 3 | 320/180 |
| Central | Air | sACE‐20 mm | 38 ± 68 (8 ± 14) | 491 ± 50 | 4 | 320/180 |
| Central | Air | hACE | 37 ± 70 (8 ± 14) | 488 ± 48 | 35 | 720/240 |
| Central | N/A | TG‐43 | 2 ± 48 (0 ± 10) | 499 ± 35 | N/A | N/A |
| Central | Air | Film | 77 ± 40 (16 ± 8) | 477 ± 28 | N/A | N/A |
| Central | Water | sACE | 18 ± 68 (4 ± 14) | 478 ± 48 | 3 | 320/180 |
| Central | Water | hACE | 15 ± 70 (3 ± 14) | 484 ± 48 | 35 | 720/240 |
| Central | Water | Film | 49 ± 18 (11 ± 4) | 464 ± 16 | N/A | N/A |
| Peripheral | Air | sACE | 52 ± 68 (11 ± 14) | 485 ± 48 | 28 | 240/128 |
| Peripheral | Air | hACE | 52 ± 68 (11 ± 14) | 482 ± 48 | 286 | 500/200 |
| Peripheral | Air | TG‐43 | 36 ± 48 (7 ± 10) | 500 ± 35 | N/A | N/A |
| Peripheral | Air | Film | 61 ± 38 (13 ± 8) | 476 ± 30 | N/A | N/A |
| Peripheral | Water | sACE | 49 ± 68 (10 ± 14) | 487 ± 48 | 28 | 240/128 |
| Peripheral | Water | hACE | 50 ± 68 (10 ± 14) | 483 ± 48 | 286 | 500/200 |
| Peripheral | Water | Film | 57 ± 26 (12 ± 6) | 477 ± 14 | N/A | N/A |