successfully decortaminated to acceptable levels with soap and water,
By T + 5
day the YAG-40 had been decontaminated to levels that would permit return to
the ZI with an estimated average crew dosage of 1 r and would permit access
to the weather decks on the superstructure and aft of the superstructure with
no protective clothing.
Fallout on the LST-611 started at 1250 on T-day and reached a maximum
of 650 mr/hr as measured by a deck TIR at 1830,
Thirty-three cases of skin
contamination occurred with a maximum of 20 mrep/hr measured at a distance of
1+ feet,
All were successfully decontaminated to acceptable levels with soap
and water,
Py T + 2, the ship was decontaminated to levels that would permit
operation of the ship at crew exposure levels of less than 300 mr per week
and that would not require protective clothing in any portion of the ship.
Support at Bikini
Project 2,63 support at Bikini was similar to that supplied for previous
events,
Early samples were recovered from the YFNB-13 on T-day with an average
dose rate of 3 r/hr,
Maximum sample reading was 1.0 r/hr at 3",
Farly
recovery of samples from Bikini Island (North) and standard pattern moritoring
was accomplished at exposure levels of 250 mr/hr maximum,
VYaximum sample reading
was 100 mr/hr at 3",
On T + 1, samples were recovered and the standard pattern was monitored
at a maximum exposure rate of 100 mr/hr.
at 3%,
Vaximum sample readinre was /O ur/hr
Also on T + 1 samples were recovered from the rafts at maximum exposure
rates of 50 mrep/hr including 20 mr/hr on raft #1, greater than 10 rep/hr
including @ r/hr or raft #2 and 8 rep/hr includirg 300 mr/hr on raft #3.
dosage of 5CO mr was received during recovery of raft #2,
On T +1 skiff
ircluding 38C mr/hr while recovering skiff #7 at Station 11,
C15rE2 (50L
_ 53 a
WA.
The maximum dose rate encountered was 3.8 rep/hr
VW,
recovery was started,
A