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1961
L
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RETURN TO RONGELAP
3
E
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$r-90 (.0069)
Co-60(.0078)
i
100
CHANNEL NUMBER
1965
EXPECTED SOOY BURDEN BASED ON
PeYSicay OECAY OF 1961 LEVEL
-90 (014)
co- 60 (0015)
Figure 69. Unprocessed gamma-ray spectrographs obtained with an 11'%-in. NaI (TI) crystal in a shadowshield whole-body counter. The channel width was 20
keV. Traces of '*’Cs and ®°Co are apparent in the background spectrum. The right-hand scale was obtained by
calibration with a “standard man” phantom and requires
correction for other body sizes; it is adjusted for the ‘*'Cs
peak.
i
Out
1
O2
1
1
O23
4
rs
05
08 O7
Figure 70. Estimated body burdenofisotopes in Rongelap people at various times since 1954. Values obtained
either by gamma spectroscopy or by radiochemicalanalysis of urine.
Table 26
Summary of Radionuclide Body Burdens of Rongelap People, 1965, Obtained by Whole-Body Counting
People residing on Rongelap Atoll
Male
Age 11
“Cs (nCi/kg body wt.)
Exposed
Unexposed
Mean
"Co (pCi/kg body wt.)
Exposed
Unexposed
Mean
Age 11-15
Age <1]
Age 11-15
Age > 15
Wl + 53
147 +49
15.5
15.2 = 54
15.2
16.3
15.9
16.1
11.6 + 5.0
11.0 + 3.8
11.2
30.7 +176
30.7
26.5
31.5 47.3
29.9
40.7 +115
376 +138
38.6
27.0
2
28.7
28.9
28.8
40.0 431.3
31.2 11.2
34.7
242+ 042
2.42
\
Age > 15
14.0
199 +43
18.1
Total
*Standard deviation =
Rongelapese US AEC
20.4 27.2
20.4
Potassium (g/kg body wt.)
Exposed
Unexposed
Mean
Numberof people
Exposed
.
Unexposed
Female
2.19,
2.09%0.20
2.12
> 0.44
1.92
1.81
1.86
152 0.39
1452 0.22
1.48
0.89
42.6
1.68
21
3
11
15
30
2k
6
7
18
27
5
2
21
16
45
21
13
45
7
/ 2) - (2%) .
.
197+ 0.24
1.884 0.32
1.91
15.6
residing
at Ebeve
.
medical
team
Trust
Territory
medical
team
0.164011
0.42
0.0
0.0
1.50+0.18
1.6]
9
2