SHOT 2
Only one station, George, collected enough fallout to be
analyzed.
The small fraction NMD's were 12.6 and 10.7 » for the 2-hr
and 12ehr collectors, respectively.
Not enough of the large fraction
sample was collected to be analyzed.
It appears (Sect. 3.3.2) that
these particles were largely remains of Shot 1 fallout which had been
redistributed during Shot 2.
SHOT 3 The small fraction NMD's ranged from 9.4 p to 20.0 ps3 large
fractions varied from
SHOTS 4 AND 6
77 p to 127 pe
Not enough radioactive material was collected from
these two shots to be analyzed for particle size distribution.
There was not enovgh fallout material in each collector interval
for a meaningful analysis; so the fallout from all intervals in each
collector was mixed together and analyzed. The only timing intervals
which can be compared are the entire cycling times of each collector.
On the basis of these cycles (2-hr and 12-hr) there is no trend of
particle size with time after shot, within the limits of sampling time.
Neither is there a trend of particle size with distance or direction
from ground zero within the limits of the area covered by the collectorse
The behavior of the cloud, which is discussed in Section 3.402,
is believed to account for the lack of trends of particle-size data.
The particle-size data obtained indicates that the Shot 1 cloud and
the Shot 3 cloud particles were both fairly homogeneous within the
limits of the area sampled. Lack of data from Shots 2,4, and 6 pre~
clude any statements about the particle size distribution character=
istics from these shots.
A difference was noted between the radioactive particle-size
distributions of Shot 1 and those of Shot 3. The samples collected
from Shot 1 were found to have 20 per cent of the particles under 5 p,
which was 24 times as many as those collected from Shot 3 (Table 3.14)
TABLE 3.13 - Shots 2 and 3
Radioactive Particle Analysis
Results
Shot
2
2
3
3
3
3
3
3.
Station
|George*
|George*
Basy
Easy
‘George
Uncle
Uncle
~=«|Vactor
"of
“ime4
3
3
*
eora
Average
Average
Over 44 p
x:
D:
aren] mo fog Taye mp log ee
2
12.6 |1.83/15.1
Insufficient Sample
[12
. 10.7
2
17.5
12
19.4
2
6.8
0.4
(21.8
12
[2667
2
20.0
Bie je
3
Under 44
-
2
12
2.00,13.2
2.02'12,3
2.01:19.9
1.€2:14.9
1.98,17.4
20102165
1.77:29.4
lol
"
222]
107]
127]
118]
95!
1.57]
1.47]
1.69]
1.77]
1.64
1.49}
r
142
140
160
145
12
125
Bs ese |B) BR)
e
15.8
29
°
e
1.97'19.0
1.98;15.1
105
102
e
1.60}
1.92;
123
106
ye.
,
These particles probably originated at Shot 1 and were redistributed by Shot 2
88