20
10
|
T
I
10°
4
w
s
2
=
$
~
Sb’ SPIKE
lO F
“
S
1.)
o
>
:
|
1 +
SOIL
9-10"
=J
oO
L
0.5
|
10
l
15
MEV
Fig. 10.
Gamma-ray spectrum of young soil from a
depth increment of 9 to 10 inches compared
with the gamma spectrum of Sbi25,