Figure 10. Normalized fluence when dose rates were decreased as the MLC bank moved from left to right in the a) 6 MV and b) 10 MV. Nominal dose rates for each strip are indicated. The test strip MLC speed was ${(\mathrm{\Delta }\mathrm{x}/\mathrm{\Delta }\mathrm{t})}_{max}/2(1\text{cm}/sec)$, which was normalized using a similar irradiation having the same DRs and MLC speed of 0.25 cm/sec.