Dose Course 2018_Flipping book

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Don’t loose the details

Comparison of a measured and calculated cross-plot (at 5 cm depth) of an intensity modulated field incident on a flat phantom. A diode-array (MapCheck; Sun Nuclear Corp.) was used for this comparison, which shows that 97.5% of the points meet 3% criteria even though DTA (distance to agreement) for a few points is 10 mm.

Can be crucial for organs at risk.

From J Palta AAPM 2005

Dublin 2018