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. 2012 Jul 25;39(8):4959–4975. doi: 10.1118/1.4736821

FIG. 3.

FIG. 3.

(a) Plot of estimated x- and y-shifts derived from same-day 18 MV versus 6 MV dynamic field images [Fig. 1(a)]. (b) Plot of estimated rotations derived from same-day 18 MV versus 6 MV picket fence images [Fig. 1(b)]. Superimposed lines have slope of one, and are fitted by eye to the data.