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DETECTORS FOR MEASUREMENT-2D/3D detectors
CALIBRATION
SSD = 95cm
z = 5cm
FS = 5x5cm²
Field size dependence
20000
25000
30000
35000
40000
45000
50000
55000
pixel value
FS 3x3
FS 15x15
FS 40x40
FS 5x5
Film dosimetry -dosimetric dependences (EBT)
14
Utretch 2016
Fuß M, MSc thesis 2007
15000
0
200
400
600
800
1000
Dose [cGy]
Radiochromic EBT film
Difference between 3x3cm² and 40x40cm² fields < 5%