CHAPTER III
RADIOLOGICAL FINDINGS
A.
DESCRIPTION OF SHIPS
Both vessels are of the cutter type operated by the Japanese Mari-
time Safety Board and outfitted with scientific equipment for cartographic
survey work in connection with the International Geophysical Year.
The
complement on the TAKUYO was 50 officers and men and on the SATUMA, 62
men, according to lists given to Dr. Haszler (Australian Health Officer).
However, all local newspaper stories quote the TAKUYO complement as 51.
The TAKUYO is a one year old, diesel-driven vessel, nicely outfitted, and
in a clean condition.
The SATUMA is a 14 year old, diesel~driven shif,
and, relatively speaking, not quite so ship-shape.
Neither ship is
fitted with a distillation unit for evaporating sea water for drinking
purposes and both ships loaded shore water at Tokyo for the trip,
Maxi-
mun spsed of both ships is 13 knots.
Two spellings of the name SATUMA will be noted,
"SATSUMA" is the
old spelling; "SATUMA" is the new one, now in use,
B,
JAPANESE RADIATION INSTRUMENTATION
The TAKUYO MARU was equipped with a laboratory-type geiger counter
ana a_scintillation counter with a deep water probe,
All were of Japanese
manufacture, but were very similar in design to equipment manufactured
in the United States,
The geiger counter was equipped with a geiger tube with an end
window of 1.42 mg/cm2 thickness for beta measurement.
ment was an amplifier and scaler unit.
Accessory equip-
Efficiency was said to be 9.6%.
19eo,ES
WSRTSAT ge
CONSSERTEL:
BOE ARCHIVES