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Method: single channel
10 x 10 cm
2
6 MV field
Beer-Lambert law:
OD dye thikness
We can’t discriminate
between non-dose
dependent parameters
(i.e. thickness, non
homogeneity scan
response) and dose
depedent parameters
Uncertainty budget
Images from: Micke et al. Med. Phys. 38(5) (2011)
Irradiated EBT2
film (2.25Gy)
EBT2 calibration curve (red
channel, 16bits)
2D dose map