Figure 5
From: Carbon range verification with 718 keV Compton imaging
(a), (d), and (g) Reconstructed back-projection Compton images of 718 keV; (b), (e), and (h) the corresponding dual-energy window (DEW); (c), (f), and (i) and triple-energy window (TEW) images of the graphite phantoms positioned at origin (0 mm), 30 mm, and 60 mm, respectively. The dotted rectangular line in (a) indicates the projection range used to calculate x-projection profile of all the images in this figure. The arrow in (c) shows the direction and location of the beam entrance in graphite phantom.
