J Med Phys Close
 

Figure 2: Comparison of dose rate (DR) for 18-MV photon beam, ‘Jaw only’ uses standard collimator jaws for field definition,‘MLC only’ MLC field with jaws parked at 35×35 cm, non-optimization method,‘MLC+Jaw’ MLC field with jaws optimized (zero gap), optimization method

Figure 2: Comparison of dose rate (DR) for 18-MV photon beam, ‘Jaw only’ uses standard collimator jaws for field definition,‘MLC only’ MLC field with jaws parked at 35×35 cm, non-optimization method,‘MLC+Jaw’ MLC field with jaws optimized (zero gap), optimization method