A
general-purpose
reduction
of
long-lived
all
nuclear
computer
generated
program,
spectra.
explosion
GAMANAL,
The
products,
was
program
activation
used
for
searches
a
products,
the
data
library
and
of
naturally
occurring radionuclides to identify radionuclides from any observed photopeak
in the gamma
spectra.
It
also generates
an
upper
limit
amount, of specific
radionuclides based on those spectra regions where signals would be seen if the
radionuclides were present
in detectable quantities.
For example,
listed
in
Table 37 are the detection limit values for various radionuclides based on the
average weight of marine tissue shown for a counting period
an average-size fish bone sample,
of
1000 min.
13765 would not have been detected by gamma
spectrometry if the concentration was less than 11 pCi/kg dry weight.
complete description of the gamma equipment used,
detection,
Ref. 5.
uncertainties,
and
For
methods
for
calibration,
setting
upper
A more
sensitivity of
limits
is
given
in
The total gamma~spectroscopy analyses are summarized in Table 38.
Wet
chemistry analyses
performed
by
standard methodology are
according to radionuclide and atoll or island in Table 39.
The
summarized
total
26,018
analyses, both gamma spectroscopy and wet chemistry, are summarized in Table 40
according to radionuclide and atoll or island.
DISCUSSION
It has taken a considerable effort to process and analyze the thousands of
samples collected during the
3-mo survey.
The
12 mo and was completed in December of 1979.
control
program has been underway
since
processing alone
took a
full
A vigorous analytical and quality
June
of
1979.
The
final
analytical
results were completed in July of 1981.
The data bank resulting from the analyses of these
basis
for
estimating
inhabitants
of
the
the atolls.
radiological
The
doses
for
assessments might
samples provides
inhabitants
also
or
indicate
the
potential
areas where
more data (and therefore samples) are required to fill a gap that occurred in
the survey sample collection or to refine a critical assessment.
ACKNOWLEDGMENTS
The
DOE-supported
Northern
Marshall
Islands
accomplished through the efforts of a great many people.
15
survey
of
1978
was