it
TV
{
J
|
|
T
tT
;
1
July 1959
Moy
1957
7
!2-!8 inch depth
|
7
I
TTT TT
y
O- 6 inch depth
4
q
©
9%
4°ueowe
\0
4
7
Try
—
4
7
q
:
|
0.5
_t
1.0
GAMMA-RAY
1
1.5
ENERGY
IN
1
_t
1
2.0
Mev
2.5
3.0
ae
i
°tl
COUNTS /120 MINUTES
B.S
T
yp
FF
Gamma-Ray Spectra of Soil.
4