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DURATION AMO TIME DISTRIBUTION OF DOSES
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AVALTIATLE PATA
im trapter 2, ub
.
:
tal dose ara cuviars
Wo Gr pertanh quis tions
.
hat
was
the
which (1 Teilezt cloud arrived; dae., wea
aach of t.e islands rise above the noma
tine
for
eacn
rates and toansweta to
islind at
di
the bacta thea level on
.ground and (2) how steop-
Lyoand Sor how lon: dad the raitaticn-level rise Lefore it rea
ached its
at the rate deteominod by ite own cone
3)3 4.0.5 bow heavy was the fallout at
wohleong did it Last? Since caly the
boa WOEYY direetly wnown, assumptions cn both these
imate of total dose,
of f
mo
:
®
rable to hava had an instrument on at
least ong cf the islards capa
f£ recercing enough data to answer
these Grestions,
As itis, i
lavel mont taring inetrimantt i
r
fortunate that there was even a lowfon on Ronsortk (Table 2, 2), ale
thouch its Mull scale capacity was
secon exceeded by the rapidly
increasing dose rate of the rallout, The tlae at which thea fallout
began was at least quite “efinitely established on Rongerik and it coincided with the time at whicn the snow-like material was first seen,
For the other islands, therefore, the tines at which sinilar material had teen seen to caumence ralling could te taken as the beginning
of tha radiation exposure times, It only remained to determine what
these tires had been,
Questioning the inhabitants of the other islands resulted in a
group of estimates of arrival tine which were in fairly good azreanent,
though the manner of questioning sometimes appeared to influence the
answers,
However the ‘tines estimated in this fashion were quite close
to these resulting frem other informations i, ees the wind velocities
at the cise, the ths of teginning fallout on h averik, and the rela}
tive distances of the other islands fron bikini, Only on Utirik was
no actual otcervation ef the fallout made; the estinate of arrival
time there was made using only the tine of arrival on honverik and the
FaT Tart
wind-and—iistunce-factors, The values of fallout
and evacuation tises
used are su-cariced in Tatle 6.1
30