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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