TABLE 3.

Summary of QA recommendations for the Iris collimator.

Parameter	Frequency	Tolerance	Method
Iris beam CAX / Laser coincidence	Quarterly / Commissioning / Path Calibration	Preferred: <0.5 mm Acceptable: <1.0 mm	Film, water tank
Beam QA (OCR, TPR/PDD, OF and FWHM) (Section 7.3)	Commissioning, annual	Consistent with commissioning (Table 10)	Water tank
Field size consistency	Monthly/Recalibration	Preferred: ±0.2 mm from baseline Acceptable: ±0.5 for FS ≥ 10 mm	Film, camera, dose area product, EPID
End to end targeting	Commissioning/Annual/Monthly	Static E2E: <0.95 mm Synchrony E2E: <0.95 mm preferred, <1.5 mm acceptable	Film
AQA targeting	Daily	<0.95 mm from baseline	Film
DQA (Section 3.5.4 and 7.2)	Commissioning/Monthly	2%/2 mm (>90%) for static and 3%/3 mm (>90%) for motion tracking	Depends on equipment availability