CHAPTER V
FENAL SUMMARY AND CONCLUSIONS
Since the dose rate by our own measurements at the time of our
arrival was so small 4s not to permit any tenable calculations on
this basis, the Japanese data was used in all calculations utilized
in arriving at our conclusions.
1.
The Japanese data showed that their highest dose-rate
reading was only fifteen times their background readings as recorded
during the early part of their voyage.
2.
The relatively low cumulative gamma readings recorded on
the SATUMA dosimeter do not necessarily indicate a true dose.
It is
entirely probable that radiation leakage of the instrument accounted.
for a large portion of the recorded dose.
If accepted eas real, it in-
dicates a total dose of 50 milliroentgens between the dates July 8-19.
3. _ The radiation dose rates on both the TAKUYO and SATUMA at
the time of monitoring were found to be substantially identical.
The
decontamination measures carried out on the TAKUYO were effective in
reducing the radiation level to essentially tackground.
4.
Japanese data maximizes the whole body gamma dose inas-
much as the scintillation probe was held almost in contact with the
decks_ Similarly our radiation monitoring data is maximized since the
geiger probe was also held in this same position.
5.
The maximum radiation dose possible to TAKUYO personnel
is calculated to be less than 5 milliroentgens.
This assumes continu-
ous exposure for the 15 hours from start of the rain squall to the end
39
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