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DETECTORS FOR MEASUREMENT-2D/3D detectors
The range of dose levels used for calibration must cover the measurement
range.
6 films per point dose recommended for calibration
Films should be assigned doses in a random pattern (avoid trending to
inhomogeneities)
Film handling tips
25
Utretch 2016
Use the same scanning protocol
for calibration and for measuring
Need to be scanned in the same orientation [orientation of “needle like mictro-
crystals (EBT)]
For best results, scan one day following irradiation (min. two hours)
Take into account
corrections for the scanner
. Linearity and non homogeneity.