Fig. 9.

Polar plots of percent contribution from each organ to the total measured scatter within the 113- to 139-keV energy window. Results from each organ are plotted as a function of detector position for simulation with a 1-cm lesion. (a) $\phi =0\mathrm{deg}$, (b) $\phi =15\mathrm{deg}$, (c) $\phi =30\mathrm{deg}$, (d) $\phi =45\mathrm{deg}$.