20

10

T

Tr

10°

4

2
>

s

S

$

SbSPIKE

o lO F

7

S

3

S

=
4

Tor

SOIL

9-10"
=]
10

J

0.5

|

1.0

1

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 Sb

5,

4

Select target paragraph3