TABLE 3.4 - Samples from Shot 4
station | Volume
(m1)
4-¥39{8))
Total Count
(c/n x 10°7)
Gamma
—9,2(d)} 32,4)
4-¥40-P1| 385
4-Y40=P2
4-240-P3
4-YL0~P4
280
340
374
-
6.26
-
4°¥40-51
987
2465
'42¥40~S2
937
4°¥40~S3 11006
48>
58.0
4.08
2239
4.92
393
4026
-
Liquid
Top of No. 1 king-
Liquid
Port side of bridge
Liquid
Port side of bridge
Liquid
Port side of bridge
-
Liquid
10.9
-
Liquid
Starboard side of
11.4
-
Liquid
Starboard side of
Starboard side of
bridge
8.75
~
Liquid
4=Y40-S5
840
7.36
“
Liquid
¥4,0056
E78
-
Liquid
3.1.5
bottles
Port side of bridge
Port side of bridge
Port side of bridge
818
(ad)
post ave. of 6
Liquid
Liquid
Liquid
4-¥40-54|
(a)
(b)
(c)
Comments
Beta
5,62(4))
4eYL0~P5
“*¥40=P6
Description
15.9
Starboard side of
bridge
bridge
bridge
Starboard side of
bridge
Starboard side of
bridge
Y = Project 6.4 YAG
Total volume of 7 bottles was 64.4 ml
Count at U+2.6 days
Count for YAG 40 samples at Ut+4 daya
Evaluation of Samples
Since the primary purpose of the investigation was to character-
{ze the fallout material, with the ultimate aim of obtaining information
which could be used to predict its contamination-decontamination behavior,
it was originally considered essential that the fallout be collected
under carefully specified conditions. Requirements were that no extraneous materials be collected before the detonation or after the fallout
had stopped. No loss of material could be allowed after the collection
of the fallout material had been made,
Ideally, the samples should have
been collected and examined as soon as possible after the cessation of
fallout so that, in addition to meeting the above conditions, the sanmples would have been analyzed before extensive physical or chemical
changes could occur.
However, because of a combination of such factors
as failure of the automatic sampling apparatus, changes in the recovery
scheme, and incomplete recovery of station arrays these conditions were
not attained. The result was that some samples were diluted by rain
water and others by sea water (spray and/or waves).
32
Still others were