Dose Course 2018_Flipping book

Tips to succeed:

• Process consistency is key to obtaining accurate and precise results in film

dosimetry.

• The range of dose levels used for calibration must cover the measurement range.

• 5 films per point dose recommended for calibration

• 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)] • For best results, scan one day following irradiation (min. two hours)

• Take into account corrections for the scanner: Linearity and non homogeneity.