Project
Jl.2 - CLOUD SAMPLING
(H. Plank)
Aircraft Sampling
As a result of the dissipation of a cirrus overcast
starting at 0300 on shot morning, the cloud was easily kept in
visual contact from the southwest quadrant.
Sampling operations
were, therefore, hampered only by the effects of excessive wind
shear on the cloud,
This shear caused the samples collected by
the F-84G aircraft in the later half of the sampling period to
\
fall considerably below the corresponding samples obtained on
\ DELETED, The sample data which are given in Table 11.2-1 show
“that in the earlier half of the sampling period (through White 1
and 2) more fissions were collected per F-84G aircraf ean
peaemage
i
This increase was gained by requiring 25 to
30% greater in-cloud radiation exposures of the pilots than on
>. which the pilot shielding being used caused the ex-
Tne
ternal exposures to be approximately 1.8 times shielded personnel
exposures.
This approach was successful when the cloud radiation
intensity was high enough to permit the pilots to acquire the
additional exposure within the limit of their available flight
time.
;
;
Effective radiation intensities (the most frequent
seen by the pilots while in the gloud) as a function of time
ee
°
COPIED/DOE
LANL RC
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