T
10?
40
\
103
—-—-—-— June 14, 1964
Dec. 22, 1962
80
Lt
1.764 MEV, 2/49;
aoe
CHANNEL NUMBER
jf
120
160
|
|
fugit
|
Lt
{|
— 1.60 MEV, 'La
F=y— 1.46 MEV, ”K
1.238 MEV, 2!4p;
S912 Mev, 2483
tty
M
c 07840 MEV, 4
a
V,
ME
0
96
0.
3
aa
eee
ft
ST Tr —2.615 MEV,11
2.20 MEV, 2B;
a? 2.18 MEV,Pr
eee —0.662 MEV, "7Cs
___> 0.5
0.609 MEV, ?!4g) —<2oZ_
0.43 MEV, "Ssh —-7MEY
a
petit
~
‘—_
voor
GS
—
oO
[TTT TTT]
Nb 5
0.751 MEV, Zr —
OTT TTTTY
4
pe
TOOT
—
©
r
(RY ANNIHILATION
IHILATIO LOSS FROM 2.615 MEV
CTT
COUNTS/ CHANNEL PER 40 MIN
TOTAL-ABSORPTION GAMMA-RAY SPECTROSCOPY
185
,
200
Fig. 2—Gamma-ray field spectra on Dec. 22, 1962, and June 14, 1964
240