ILLUSTRATIONS (Continued)
Page
Plan View of a Typical Fall-out Particle Deposited on
4.4
Inverted View of Typical Particles Removed from
4.5
4.6
4.7
4.8
4.9
Life-float Decking
Life-float Decking
.
.
:
Typical Life-float Section .
Particle Deposition on Life-float Decking .
.
.
.
Beta and Gamma Decay Curve from 15 to 90 Days After Shot
Mags Distribution of Fall-out (g/sq ft)
.
.
Variation of Cross-wind Fall-out with Distance from
Ground Zero
.
4.10 Size Distribution of Radioactive Particles a
z sa Function
of Time and Distance.
4.11 Periods of Primary Fall-out at Different Stations
CHAPTER 5
5.1
5.2
6.1
Periods of Secondary Fall-out at the Outer Island Stations
C.1
44
45
46
49
30
METEOROLOGICAL CONSIDERATIONS AND
FORECASTS OF FALL-OUT
Predicted Area of Primary Fall-out .
APPENDIX C
37
38
38
42
43
SECONDARY FALL-OUT
Radioautograph of Secondary Fall-out Particles
CHAPTER 6
36
52
ELECTRONIC TRIGGER MECHANISM
Schematic Diagram of the Electronic Trigger Mechanism.
68
TABLES
CHAPTER 3
3.1
Instrumentation at Land and Lagoon Stations at Eniwetok Atoll .
CHAPTER 4
4.1
4.2
4.3
B.3
B.4
B.5
32
PRIMARY FALL-OUT
Spectrographic Analysis of the Radioactive Particles Removed from
the Life~float Decking
X-ray-diffraction Analysis of Radioactive Particles Removed from
the Differential Fall-out Collectors
Size Distribution of Radioactive Fall-out Particles
APPENDIX B
B.1
B.2
INSTRUMENTS
39
40
47
TABULATED DATA
Weight and Activity of Solid Fraction of Collected Material
Volume and Activity of Liquid Fraction of Collected
Material
.
Total Activity and Total Mass of Collected Material .
Secondary Fall-out Data, Gummed-paper Collectors
Free-floating Sea Stations
.
.
8
.
.
60
61
62
63
86
Th RRRRERE Toh SN EON:
4.3