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mY ALAMOS SCIENTIFIC LABORATORY
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UNIVERSITY OF CALIFORNIA
LOS ALAMOS, NEW MEXICO
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TO
:
T. L. Shipman, M.D., H-DO
FROM
:
7, N, White,? H-6
SUBJECT:
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LARS
IFIED
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PATE: 16 June 1953
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by authority of
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"Bandetwitte operation Comprized three shots as follows:
&
ame of Shot
X-ray
7
Yoke
zebra ‘|
1948 Date
Island
15 Apr.
Ingebi
1 May
Aomon
15 May
Runit
dition of the Shot Islands was conducted by Dr. Simon Shlaer, Health
64 L22
ke Pe <Sonwe|
)
perso n faking the change and date
_..D° RisSH.
DUUTING
—_
sification and
author izing change in clas
date)
Thy
Starting 5 October, 1948, a preliminary survey of the radiological con-
(
-
&
io
2
POow
-
4oO
5
‘
;
during the weeks following the shot on that Island.
Within 300 yards
of ground sero, the most radioactive regio, there was no trend of
intensity with distance, the readings varying in an irregular way
between approximate limits of 30 to 100 mr/hr.
there was a rapid decrease in intensity,
was less than 1 mr/hr.
From 300 to 750 yards
Beyond 750 yards the intensity
At ground zero the readings ranged fram 40 to
ocation about 1000 feet from ground zero, he found that the activity
A2l~
x>
ois
sities on Engebi was not much different from what had been observed
y excavating successive layers of soil in an exceptionally radioactive
Cl-2
>
He found that the general pattern of relative inten-
50 er/hr, depending on the amount of steel left in the tower stubs.
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tf
Division, LASL.
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g
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F ORM 25% 75M 2-92
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me gots
TOA
° in any
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7
OUTLINE OF RAD-SAFE opsrunrara.as
Agvotion
as
i
L
f the soil decreased rapidly with depth,
The activity in the 6 to 7
neh layer was less than 1% of the activity in the top inch.
(Report
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