21
01~ +-he 1969
Altholugh none
the X–ray
trations
lected
cular
63
emitter
Ni,
this
or 1970
radionucliile
of 80 d/in/g dry weight
in 1967
(Beasley
interest
the clam
In addition,
and is therefore
Another
of approximately
among
This
rad.ionuclide
has
radionuclides
was
of the ‘nepa’cop.]ncreas of spiny
(Fig. 4).
trator
Tne
spiny
of silver
another
lobster
isotopes
potentially
a half–life
of 92 years.
from
Ni.
1970) .
spectrum
in 1969
is a known
1963) .
63
first ‘
and Held,
collected
t
a half-life
the gamma-ray
hepctopancreas
60C0
of
for the
(Beasley
lobsters
(Seymour,
as it does
Ni,
identified
detected
col–
is of parti-
63
at Bikini
first
sediment
10.!3m
Ag, with
been
in concen–
for the presence
radionuclide,
125 years,
time
organism
for
Nickel–63
1969).
it has
analyzed
found
Crater
accumulated
an indicator
long-lived
the
since
kidney
was
in Bravo
and Held,
as a tracer
s:’mples were
Thus ,
108m
with
concen–
Ag is
useful
long–lived
tracer,
its indicator
water
is present
at low concentrations;
organism.
Tritiurn in well
maximumL value
found
at Nani 1., whereas
was
2 pCi/ml,
taken
Bikini
in 1970
in 1969 was
at Bikini
T. U.
and Eneu
or 4300
Islands
600 T. L“. (Table
irom well-points
4 and
These
and cistern
values
5 and
fall within
15) .
from the
at Eneu
tritium
units,
the concentration
or approximately
and from the well
than 400
14 pCi/ml,
the
Samples
cistern
all contained
the range
at
less
of tritium