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Table 2 Measured Dolphin transmission factors for the square fields and each beam energy

From: Validation of new transmission detector transmission factors for online dosimetry: an experimental study

Field size (cm2) Beam energy
6 MV 6 aFFF 10 MV 10 FFF
3 × 3 0.946 0.935 0.948 0.941
5 × 5 0.932 0.921 0.936 0.928
7 × 7 0.916 0.904 0.925 0.917
9 × 9 0.901 0.890 0.920 0.911
10 × 10 0.893 0.883 0.914 0.906
12 × 12 0.887 0.873 0.909 0.902
15 × 15 0.877 0.863 0.903 0.896
20 × 20 0.866 0.854 0.897 0.891
  1. aFFF flattening filter free