porscemel
adhe Gculll be“spared below decks because of the posaihtlity of.

tohalingthy extremly fine particles inte the lungre Wo further deccn=

tamifatieet were taken on 1 Marelt 1954.

wee

e ie OSD-H on-2 Maree 1954 the ship wan completely monitored and the

Hight deck and bridge etrasture isvieabed fron cneauntred (100) to two=-

om all day 2 March 1954. The flight desk was washed dow several tines

;

using high pressure hoses, working parallel to the planking. The first wsh=
down rosulted in at average reduction of 40-90 milli roentgens per hour,
gemaocnly. This ws followd ty
with a detergent soap
cB
and salt water rinse, using high pressure
fire hoses, The imensity om the

flight deck was reduced below fifty (50) 21124 roentgenes per hour, gama

ony, except in a few scattered spaces, following repeated applications of
this method, roe erent een Fae Gomme reading on the flight deck before

decontamination was one (1) re pe

decontamination efforts utilised

reduced this figure by at least 50% according to calculations of the Navy

Ratlological Decontamination Laboratory representatives.
4.

4 check on representative film bedgee of flight deck and other exposed

rsonmnel indicates that they received an average of from two (2) to three
{3) roentgena total. dose up to noon 2 March 19860 I consider that as a

reault of the docontamination measures taken the radiation level has beer
reduced to the point that the ship is entirely safe for contimed
by all personel on board. I reccomend that the SATAOKO contime with the
operations in progress in proparation for the remainder of the teste.

5. i detailed report of the decontamination operations will be submitted

at a later date.

EMMET 0° BEIRNE

K=55-IV( pa2)

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