CHAPTER
5
GAMMA-DOSE RATES
{
Gamma-dose rates at 3 ft above ground were determined with
AN/PDR 27 C survey meters.
Specific locations which had been monitored on earlier surveys were
resurveyed whenever they could be located. General surveys were run
on all islands. A linearity calibration was carried out on the instruments
with a 93.53-~mg Ra source.”
Low intensity Cs}3? standards were carried
in the field in order to maintain a continual check on the behavior of the
instruments.
5.1
RESULTS AND DISCUSSION
5.1.1.
.
General Surveys
Table 5.1 contains the gamma-dose rates found on the islands
surveyed, These data are reported as of 11 months post-detonation.
TABLE
5.1
Average Gamma-dose Rates on Islands
Atoll
Likiep
Utirik
Gixar
Gaimma-dose Rate
(mr/t at 3 ft)
Rowgeri
Likiep
Utirik
Boar
Eniwetak
0,04
0.14
0.27
Rongelap
Rougelap
9.7
Rorigeiap
Buse
0.8
Rougelap
Roagelap
Enaetok
Labaredj
2.4
3.0
Rongelap
Ka belle
4.2
Rorgelap
Lukuen
4.8
Rongeiap
Ge jen
0.4
Rongelap
*
T5land
Lomuilal
0.7
5.8
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