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Quarterly quality control tests
| Designator | Test | Performance | |
|---|---|---|---|
| Tolerance | Action | ||
| Quarterly | |||
| QTPS1 | CPU/server | Functional | |
| QTPS2 | Digitizer (if it is used clinically) | 2 mm | 3 mm |
| QTPS3 | Electronic plan transfer | Data integrity | |
| QTPS4 | Plan details | Data integrity | |
| QTPS5 | Plotter/printer | 2 mm | 3 mm |
| QTPS6 | Backup recovery | Functional | |
| QTPS7 | CT geometry/density | 2 mm/0.02 | 3 mm/0.03 |
