The Fukuryu Maru Noe 5 is a vessel of unknown agee
It was captured by
the Indonesians in World War II, which implies at least 13 years of sea
voyagese
The Fukuryu Maru is 99.9 tonse
It follows somewhat the general
plans for tunny boats built at the Yaizu shipyards, differing from the usual
vessel in being about 50 tons.lighter.
The vessel was monitored on at least three different occassionse
The
Tokyo University group headed by Drs Nakaidzumi and Kakehi generously gave
ABCC their figures for March 17 and 20 (see Appendix).
An American team from
the United States Air Force visited the ship on 20 March and took a few
readings given below.
. A. Average overall level of radiation from boat is about 20 mr per hour.
Radiation is gamma.
Be Crew quarters 35 ur
C. Open deck 8 mr
De | Covered passageways 12 mr
Value of 50 R as minimm accumlated dosage for crew members still
appears reasonablee”’f
US DOE ARCHIVES
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