#« ena pte oo he te fe EXPOSURE RATE (MeV/gm-sec) PER 1 PHOTON/cm*®-sec sh 4 6 8 98 2 SOURCE ENERGY 3 4 Ss 6 F 4 @2 (MeV) Figure ll. Total expcsure rate as a function of energy at 1 meter for various depth distributions. - 45 -
#« ena pte oo he te fe EXPOSURE RATE (MeV/gm-sec) PER 1 PHOTON/cm*®-sec sh 4 6 8 98 2 SOURCE ENERGY 3 4 Ss 6 F 4 @2 (MeV) Figure ll. Total expcsure rate as a function of energy at 1 meter for various depth distributions. - 45 -