-3been made from an altitude of from 10 to 2 feet,
the observations were considered representative of
readings three feet above ground.
Therefore, the
dose rates shown may be about 15 pereant too lew.
b. Wel, ~ Scientific Director's Report, Annex 6.h,
Fallout Phenomenology. Fallout samples collected
on a greased aluninum plate were counted by a
bete-gamme survey meter and/or a gamus survey
i
meter. Some helicopter measurements from s height
of 10-20 feet are given. They: were accordingly
increased by about 15 percent to make them compsrable
with other readings.
The subscripts after the dose rates on Figures 3-6 denote the
sources of data as follows:
From WI-89
R ~ Rad. Safe. helicopter readings.
From Wels
|
'
a ~ Rad. Safe. helicopter readings.
b ~ Bata-garma survey meter readings.
¢ = Samm survey mter readings.
IVY Data
Figures 7 end & contain the data for the IVY series from the
following sources?
a. WT-615 (Project 5.lka) Nature, Intensity, and Distribution of Fallout from MIKE Shot.
Various types of
Gollectiwrgs (total, incremental, and differential)
were used in this operation but the repart (Figure
1, pege 34) did not describe how the various
gamun dose rates were derived.
:
b. WT-6l ~ Operation IVY, Redlalogical Safety. Rad. Safe.
helicopter readings from about 50 feet for MIKE and
about 25 feet for KING are given and have all been
a
converted to ground readings by multiplying by a factor
TT
pry.
cement ereee GY
7
ot
.
of 3, as suggested in the report. Also a few Rad. Safe.
groumd readings are given.
eee
d