VEGETATION AND ANIMAL SAMPLES
Coconut meat,
Both plant and animal samples were
received frozen with dry ice.
The
decause of its
high oil content, was not ground but
was broken into small chips and
plant samples were spread in stainless
pressed into the aluminum cans.
steel pans and dried at approximately
Coconut milk was mixed with for-
80°C for at least 24 h in a forced
maldehyde and canned.
draft oven until they reached constant
samples were sifted
weight.
The dried plant materials
were ground in a Wiley mill with a
2-mm screen, pressed into the aluminum
mesh screen
Litter
through a 3 1/2-
(5.613-mm openings)
before being pressed into cans.
The animal tissue samples were
“tuna cans'' with a Carver press at
sliced
about 14,000 psi, and sealed.
and bone were removed from muscle
Sizes of cans were used,
210 em,
‘Two
one containing
the other 95 em”
Samples
thinly and freeze dried,
tissue.
Skin
Freeze-dried tissues were
cut into small pieces and pressed
insufficient in volume to fill a
into ''tuna cans'' as described above
small can were packaged in plastic
for plant materials.
vials.
wet chemistry were packed into 30 mm
Sample weights were logged
for calculation of specific activities.
Aliquots for
snap top plastic vials.
Gamma Spectrometry
~All gamma measurements of Bikini
facility used four Ge(Li) diodes
soil, animal, and vegetation samples
ranging from 7 to 19 em? in volume.
were made by the Radiochemistry
Most samples were analyzed for approxi-
and Biomedical Divisions of LLL.
mately 1000 min, although some of
A total of 624 samples were analyzed,
the more active samples were analyzed
282 by Radiochemistry and 342 by the
for 300 to 400 min.
Biomedical facility.
spectra were transferred to magnetic
Radiochemistry
All gamma
used several Ge(Li)-diode detector
tape for analysis on a CDC-7600
systems with diodes that were 50 em?
computer using the GAMANAL code.”
or more in volume.
A detailed description of measurement
2.
BR.
The Biomedical
Gunnink and J,
Ray Speetrometry,
51061
(1971).
B.
Niday, Computerized Quantitative Analysts by Gamma
Vols.
1-4,
Lawrence Livermore Laboratory,
Rept.
UCRL-