Profect 2,5a - DISTRIBJTION AND TNESPNSITY OP FALL-OUT
Project Officer ~ E. R. Tompkins
Objectives
The following objectives were sought in this experiment:
Magnitude and downwind extent of the primary, or
militarily significant fall-out.
At close-in stations, the time of arrival of the
fall-out.
The physical nature of the fall-out.
instrumentation
ALL available stations in the lagoon and in the atoll
islands were fully instrumented.
A limited number of free-
floating buoys were placed about the shot point.
The calculated
positions of the buoys at shot time are given in Table 2.5a-1l.
This table also includes the drop position of the buoys and the
computed drifts and sets of the buoys.
Results
No fall-out was found in the collectors placed in the
lagoon or in those placed on the atoll islands.
obtained from some of the free-floating buoys.
Collections were
These collections
were in the polyethylene bottles and on the gum papers.
T1B radiac
meter data of the bottles and paper are included in Table 2.%a-2.
These figures have been corrected for background at time of assay.
The implications of the reported data cannot be reported
on-site since laboratory analyses and correlations with other
measurements are required.
However, all information collected
indicate that the contaminant arrived in the form of a fine mist
or liquid aerosol.
COPIED/DOE
LANL RG 7
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