8 91
2
3
4
5
6
7
891
2
3
4
$$
6
7
891
=~
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ENERGY FLUX
—
- GE
wwoe
7
Ow
wo
6
2
3
4
5
6
78930
4
5
6
7 B91
1
ENERGY (MeV)
Figure 2.
for three
Differential energy spectra of the scattered energy flux
source energies
shown for comparison,
alr medium.
at heights of 1 and 100 meters
for a
(flux x energy)
soil-air medium.
Also
is the spectrum at 1 meter for a 1 MeV source in an infinite