Table 3.

TPS model comparison tests and tolerances

Test	Comparison	Description	Tolerance
5.1	Dose distributions in planning module vs. modeling (physics) module	Comparison of dose distribution for large ($>30\times 30 {\text{cm}}^2$) field.	Identical a
5.2	Dose in test plan vs. clinical calibration condition b	Reference calibration condition check	0.5%
5.3	Dose distribution calculated in planning system vs. commissioning data	PDD and off axis output factors for a large and a small field size	2%

^aIdentical to within the expected statistical uncertainty (considering noise and calculation grid size).

^bTPS absolute dose at reference point.