PRIVACY ACT MATERIAL REMOVED
neriod is 6.4 MR (light fallout occurred on the RENDOVA during the early norming
4 November).
Thus, the total integrated intensity to which YN3
was potenti...
exposed during this period is 248.4 mR. This analysis assumes that between 1-4 Novemder,
YN3
spent 60 percent of the day topside on the hangar deck with no shielding and +7
nercent delow decks.
‘While below, he was offered a shielding factor of 9.06 by the ship's
structure (Reference 2).
(Typically, a crewmember is assumed to spend 40 percent of the
day topside and 60 percent below). The dose calculations for l-4 November are as follows:
Dosey 4g Noy = (.25 R)(0.7 rem/R) [o.6(1) + 0.4(.06) | = 9.11 rem,
During the period 5-13 November, it is assumed that YN3
spent approximately
$5 percent of each day either topside (on the hangar deck) or on Japtan Island.
Trios to
Japtan are assumed to rave lasted for six hours. The free-field integrated intensities on the
RENDOVA and Japtan during this time period are 59.3 mR and 62.2 mR, respective.
5:
Agzga.1,
while below deck, he was shielded by the ship's structure.
The dose calculations
the period 5-18 November are as follows:
-
Doses i Nov 7 (9.7 rem/R) [6/24(0.062 R) + 14/24(0.059R) + 4/24(.059R)(.06) |
= 9.94 rem
YN3
total gamma dose while at Enewetak during the period 1-13 November .s
therefore 9.11 +0.04 = 7.15 rem.
also states that he swam in radioactive water while he was a lifeguard on
Japtan Island.
Water samples were obtained off Miramar Beach (Parry Island) on 3, 4, 6, 7,
$8, 9 and 17 November 1952.
Activity was noted only on 4 and 6 November when water
samoles showed activity concentrations (beta-gamma) less than one-tenth the maximun
permissible cOncentration; it was concluded "that swimming at Miramar Beach invoived ~>
“aczard Decause of radioactivity" (Reference 6). Samples obtained between Parry anc Jas"
islands revealed even less activity than those at Miramar Beach; hence, swimming
Japtan would have provided no significant dose contribution.
DOSE DUE TO INTERNAL EMITTERS
During
YN3
exposure
to
contaminated
helicopters
in
the
ad
perio
|-4 November, the possible inhalation of resuspended fallout is considered. It is noted tnat
PRIVACY ACT MATERIAL REMCVED