Figure 2
Images of the beam with no filtration (a) and flattening filter at 30 keV (b), 28 keV (c) and 32 keV (d). Vertical profiles (e) of the beams reported in panels (a)–(d). Black arrows indicate the position corresponding to the tungsten slits system used for the clinically oriented imaging experiments so far. Profiles in (e) are normalized to their area. |