Fig. 1

Effect of the reconstruction setup on the hot spot recovery coefficients (HSRC) of the examined spheres. a HSRCs of the clinical acquisition protocol (60 projections, 20 s/projection) for different reconstruction setups (SCF_1.10 in combination with four different iteration sets). b HSRCs for a fixed set of iterations (24i/10s) demonstrating effects by the acquisition protocol (clinical or NEMA) and SCF (SCF = 1.10 or 0.41). HSRC was plotted against sphere diameter normalized to FWHM at 100 mm with LEHR collimator (FWHM = 7.4 mm) and sphere volume