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Project 2.1 - Gamm Exposure vs Distance - °. Brow
Salo
The orject was to meapure iuitial and
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Ratha
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using NAS type film badges, quarts fiber dosimeters, and chemical
dosimeters,
DFSCUIPTION AND FXPEN IMENTAL POC SHUR ES
Standard film heaiges and quarts fiber dosimeters were distribte
at warious positions throughou’ ?tind Atoll ani on the ship stationed
fin the predicted fallout area.
Some tadree were expose! without
interruption, while others were excosed in sequence or shielded from
the fallout by dropning mechanisms activatei after blast arrival.
RESULTS
Since all of the results are total exposures it was necessary to
estimate the amount of resitual fin orter to evaluate tne initial gamm
exposure.
The estimates were based on imown resitual exposures at
Similiar sti‘dons Just outesiie the range of initial exposure and on
relative recovery times and reenvery rates.
The estimated resitual
contaminaticn war 15 roentgens for the lan‘ stations and 15 roentgensa
for the reef stations from Airuaiiji through Poiiriideu.
Since
tniivia-
ual residual exposure valurs may fluctuate, th: value of dnitsal date
froma few of the etations is sucstionable.
all of the data should te of va‘ur,
However, @ curve based on
Table [.1-] pivee the initial results.
CONCLNSIONS
The initial gamma exposure results are in reasonable agreement
with predictions gontainetd in TY 23-21,
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