Table 4.
Annual quality control tests
| Designator | Test | Performance | |
|---|---|---|---|
| Tolerance | Action | ||
| Annual | |||
| AK1 | Reference dosimetry | 1% | 2% |
| AK2 | Timer and end‐effect error | Characterize | ±0.05 min |
| AK3 | Output linearity | n/a | 1% |
| AK4 | Output reproducibility | 2% | 3% |
| AK5 | Output error associated with beam interrupt | 2% | 4% |
| AK6 | Beam quality | 10% | 15% |
| AK7 | Alignment of focal spots | 0.5 mm | 1 mm |
| AK8 | Focal spot size | Reproducible | |
| AK9 | Percentage depth dose verification | Characterize and document | |
| AK10 | Profiles verification | Characterize and document | |
| AK11 | Independent quality control review | Complete | |