**9.8 Test case P3: intensity modulated radiation therapy (IMRT) plan with 9 coplanar beams**

Similarly, with 9 coplanar beams, the percentage variation between planned dose and measured dose was noted as 2.07%.

#### **Figure 5.**

*(a) Dose distribution in heterogeneous phantom, CT slice for test case P1. (b) Dose distribution in Delta4 phantom, CT slice for test case P1. (c) Dose distribution in patient, CT slice for test case P1. (d) Dose distribution, dose deviation, distance to agreement and gamma index of test case P1.*

The Dose-Difference (DD) and Distance-To-Agreement (DTA) and Gamma Index were 81.4%, 94.3%, and 97.5% respectively.
