1572-1573 / 2239
DETECTORS FOR MEASUREMENT-2D/3D detectors
CALIBRATION
SSD = 95cm
z = 5cm
FS = 5x5cm²
15000
20000
25000
30000
35000
40000
45000
50000
55000
0
200
400
600
800
1000
Dose [cGy]
scanner readout (green channel)
X6MV
X10MV
X25MV
Film dosimetry -dosimetric dependences (EBT)
Energy dependence
Mean difference=0.6%
Maximum difference =1.3%
13
Utretch 2016
Fuß M, MSc thesis 2007
15000
20000
25000
30000
35000
40000
45000
50000
55000
0
200
400
600
800
1000 1200
Dose [cGy]
pixel value
2cm
5cm
10cm
25cm
15cm
Depth dependence
max deviation from fit curve:
4.4% around 8Gy