Table 1.
The code name each linac used in this study and their number of years in service
| Code name | Model | Age |
|---|---|---|
| iX-1 | Varian - Clinac iX | 7 |
| iX-2 | Varian - Clinac iX | 6 |
| Tri-1 | Trilogy | 5 |
| True-1 | Truebeam v1.5 | 2 |
| True-2 | Truebeam v1.5 | 2 |
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