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Table 2 The measured and optimized DLG and MLC transmission values for different photon energies

From: A simple method for determining dosimetric leaf gap with cross-field dose width for rounded leaf-end multileaf collimator systems

  6 MV 6 MV-FFF 10 MV 10 MV-FFF
MLC transmission (%) Measured 1.74 1.39 2.05 1.70
Optimized 1.80 1.60 2.00 1.90
DLG (mm) Measured- ion chamber, gN 0.94 0.75 1.10 0.95
Measured- ion chamber, gD 1.43 1.15 1.66 1.43
Measured- Film 1.36 1.26 1.45 1.54
Optimized 1.40 1.35 1.50 1.45