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Tips to succeed:
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Process consistency is key to obtaining accurate and precise results in film
dosimetry.
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The range of dose levels used for calibration must cover the measurement range.
•
5 films per point dose recommended for calibration
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If small square pieces are used for calibration keep track of the initial sheet
orientation (remember coating direction).
•
Use the same scanning protocol for calibration and for measuring
•
Need to be scanned in the same orientation [orientation of “needle like micro-
crystals (EBT)]
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For best results, scan one day following irradiation (min. two hours)
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Take into account corrections for the scanner: Linearity and non homogeneity.