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RADIOACTIVITY
LOG, RADIOACTIVITY
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ae
RR
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. 4000
ome SF TER DE TORATION
25.
oe
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DATS AFTER OF TONATION
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a
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bas aren O€ TOMA TION
Figures 1 - 3. Logarithmic plots showing radioactive decay of samples
listed in Table 1.
Absolute levels of curves may be calculated by re-
ferring to the columnof Table 1 headed ''Plate count, 1000 days’
(Curves 61-104 follow in Figs. 4-6, p.7
Dates of detonations:
Curves 1-6
Curves 7-8
Curves 9-104
)
"Greenhouse" April 21, 1951
"Uncle-Jangle'’ November 29, 1951
'Mike"
November 1,
1952
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