1.

Radiation Readings - TAKUYO MARU

Date:

7-26-58

Instrument:

MX-5 Beta-Gamma Geiger Counter #1146

Background ashore:

2200 hours 25 July 1958:

0.06-0.07 mr/hr Beta-Gamma
All readings on exposed outer surface unless noted.
in contact with the surface.

Beta shield open.

Probe held almost

Only maximum reading

location

Forecastle - Exposed

Top of hatch - steel painted
Anchor winches - canvas cover
Winch
Rope coil on deck
Wet bumper coil
Canvas cover over steel cable

Forepeak Spaces = Enclosed

Fe

recorded over each area examined.

0.07
0.08
0.05
0.07
0.07
0.07

Peint locker
Stowage locker

0.03
0,02

Deck awning (in place on 1th)

0.09

Chain locker

Coil fire hose

Forward Deck - Exposed

0.05

Rolled up at

Winch cover - canvas
Oily surfaces around winch
Deck surfaces - wood = portside

0.09
0.07
0.05 to 0.09

‘Deck surface - wood - starboard

0.08

Windlass cover — canvas

Wooden bench

Boat Deck = Exposed
life raft cover - painted fabric

0.09

0.11

0.06

Reel steel cable - canvas cover
Deck surface - wood = aft

0.05
0.12

Lifeboat —- canvas top ~ aft - starboard

0.10

Winch cover - rubberized material

Engine room ventilator area
Lifeboat - canvas top - forward - port
Vegetable locker - painted canvas

)

0.07 time of reading)

0.08

0.06
0.09
0.08

This had not)

been cleaned)

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