J Med Phys Close
 

Figure 6: Comparison of 2D plane dose profiles of peak test between unprocessed profile of I知RT MatriXX (A), processed profile of I知RT MatriXX (B) and TPS (C). Figure 6D represents the 1D profile comparison between TPS and unprocessed matrix data. Figure 6E represents the 1D profile comparison between TPS and processed matrix data of I知RT MatriXX with 4 adjacent shifts, showing the improvement of spatial resolution by detecting the 2.5 mm MLC gap, which cannot be resolved by unprocessed matrix data (D). Uninterpolated matrix data of processed profile (F) shows the increase of spatial resolution to up to 4 times as compared with that of unprocessed profile (G).

Figure 6: Comparison of 2D plane dose profiles of peak test between unprocessed profile of I知RT MatriXX (A), processed profile of I知RT MatriXX (B) and TPS (C). Figure 6D represents the 1D profile comparison between TPS and unprocessed matrix data. Figure 6E represents the 1D profile comparison between TPS and processed matrix data of I知RT MatriXX with 4 adjacent shifts, showing the improvement of spatial resolution by detecting the 2.5 mm MLC gap, which cannot be resolved by unprocessed matrix data (D). Uninterpolated matrix data of processed profile (F) shows the increase of spatial resolution to up to 4 times as compared with that of unprocessed profile (G).