|
20
|
|
|
|
|
10
.
if
10
;
3
T
2
7
©
:
~
‘
SS)
i
|
|
]
i.
||
|
‘=
s
S
Sb
S10
WY
SPIKE
-
S5
S
-
-
1
SOIL
|
Ai:
125
9-10"
=
10
|
I
1
0.5
1.0
1.5
MEV
Fig. 10.
Gamma-ray spectrum of young soil from a
depth increment of 9 to 10 inches compared
with the gamma spectrum of Sbr25,