#«

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.
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