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Small static fields: Influence of low density medium
Differences between doses computed
between two versions of same model
AAA v8.6.15
vs
AAA v10.0.25
Film EBT - Calc
Ong et al (2011) Med Phys 38(8), 4471-4479
Major difference between versions was the
resolution of the
fluence matrix
2.5mm
vs
0.3125mm
6MV
SSD=100cm
@6cm depth
MLC fields