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Varian leakage: comparison between
120- and 80-leaf MLCs
Blue: 80-leaf MLC
RED: 120-leaf MLC
-20.0
+20.0
0.0
100
50
0
Relative scale (%)
Distances from central axis (cm)
2.5%
2.0%
optical density
calibration scans
Varian’s new
“Halcyon” calims
leakage of <0.4%
Elekta leakage: comparison between
MLCi, Beam Modulator and Agility
78
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
-75
-50
-25
0
25
50
75
Transmission (%)
Displacement (mm)
MLC Transmission
MLCi
Beam
Modulator
Agility