The percentage passing rate of 3D gamma indices in the three phantoms for each subregion and field size; the criteria of dose difference and DTA were set to 3% and 2 mm, respectively
. | . | Field size (cm2) . | ||
---|---|---|---|---|
Phantom . | Subregion . | 2 × 2 . | 5 × 5 . | 10 × 10 . |
Water | Buildup | 100.0 | 93.8 | 97.6 |
Penumbra | 100.00 | 99.5 | 99.7 | |
Inner | 100.00 | 99.6 | 99.9 | |
All | 99.9 | 99.2 | 99.7 | |
Slab lung | Buildup | 98.7 | 98.2 | 98.7 |
Penumbra | 97.4 | 95.7 | 93.7 | |
Inner | 97.6 | 69.8 | 58.9 | |
All | 97.5 | 80.2 | 68.9 | |
Spherical tumor | Buildup | 98.9 | 97.8 | 98.1 |
Penumbra | 98.0 | 96.0 | 93.6 | |
Inner | 93.9 | 80.8 | 76.0 | |
All | 96.1 | 86.7 | 81.2 |
. | . | Field size (cm2) . | ||
---|---|---|---|---|
Phantom . | Subregion . | 2 × 2 . | 5 × 5 . | 10 × 10 . |
Water | Buildup | 100.0 | 93.8 | 97.6 |
Penumbra | 100.00 | 99.5 | 99.7 | |
Inner | 100.00 | 99.6 | 99.9 | |
All | 99.9 | 99.2 | 99.7 | |
Slab lung | Buildup | 98.7 | 98.2 | 98.7 |
Penumbra | 97.4 | 95.7 | 93.7 | |
Inner | 97.6 | 69.8 | 58.9 | |
All | 97.5 | 80.2 | 68.9 | |
Spherical tumor | Buildup | 98.9 | 97.8 | 98.1 |
Penumbra | 98.0 | 96.0 | 93.6 | |
Inner | 93.9 | 80.8 | 76.0 | |
All | 96.1 | 86.7 | 81.2 |
The percentage passing rate of 3D gamma indices in the three phantoms for each subregion and field size; the criteria of dose difference and DTA were set to 3% and 2 mm, respectively
. | . | Field size (cm2) . | ||
---|---|---|---|---|
Phantom . | Subregion . | 2 × 2 . | 5 × 5 . | 10 × 10 . |
Water | Buildup | 100.0 | 93.8 | 97.6 |
Penumbra | 100.00 | 99.5 | 99.7 | |
Inner | 100.00 | 99.6 | 99.9 | |
All | 99.9 | 99.2 | 99.7 | |
Slab lung | Buildup | 98.7 | 98.2 | 98.7 |
Penumbra | 97.4 | 95.7 | 93.7 | |
Inner | 97.6 | 69.8 | 58.9 | |
All | 97.5 | 80.2 | 68.9 | |
Spherical tumor | Buildup | 98.9 | 97.8 | 98.1 |
Penumbra | 98.0 | 96.0 | 93.6 | |
Inner | 93.9 | 80.8 | 76.0 | |
All | 96.1 | 86.7 | 81.2 |
. | . | Field size (cm2) . | ||
---|---|---|---|---|
Phantom . | Subregion . | 2 × 2 . | 5 × 5 . | 10 × 10 . |
Water | Buildup | 100.0 | 93.8 | 97.6 |
Penumbra | 100.00 | 99.5 | 99.7 | |
Inner | 100.00 | 99.6 | 99.9 | |
All | 99.9 | 99.2 | 99.7 | |
Slab lung | Buildup | 98.7 | 98.2 | 98.7 |
Penumbra | 97.4 | 95.7 | 93.7 | |
Inner | 97.6 | 69.8 | 58.9 | |
All | 97.5 | 80.2 | 68.9 | |
Spherical tumor | Buildup | 98.9 | 97.8 | 98.1 |
Penumbra | 98.0 | 96.0 | 93.6 | |
Inner | 93.9 | 80.8 | 76.0 | |
All | 96.1 | 86.7 | 81.2 |
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