13
3
|O'(e5144_p, 144!
T
Ey!S5
——
Sb l25
2
10+
Cs| 137
spies
125
oe
|
|
Co60
|
w
!
~~
5
&
s
@
C960
77e>
|
|
lOr
a
c
=
oO
OL
0-1
SL
“
<
9-10
10=|
Fig. 5.
l
O05
iT
1-2"
I
MEV
|.O
l
1.5
Gamma-ray spectra of equal amounts of old soil
from different depths.