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.

Select target paragraph3