analysis of all detectable radionuclides,
VI.
RADTOCHEMICAL ANALYSES
Required analytical measurements on samples recovered in the survey of
Eniwetok Atoll are summarized in this document.
The information is presented
in tabular form, beginning with a description of various sample types and
estimated quantities to be recovered,
In Table II we summarize how samples
will be handled, including treatment at Eniwetok, form in which the material
will be shipped, and necessary initial treatment required before samples are
ready for routine analysis.
In Table III we summarize the kinds of analyses expected to be necessary,
including a list of nuclides which have been detected in Eniwetok samples
taken in earlier years.
routine matter,
Most of the samples will be GeLi gamma counted as a
The question as to how many samples will require dissolution
and wet chemical analyses can be answered accurétely only as the planning anda
sample recovery progress.
We need an assessment of the importance of 90g,
analyses; we expect to infer Pu content from 2M da, measurements in some samples
where more precise Pu analytical measurement by wet chemistry is not required,
We anticipate that the more difficult
oy Fe
and
63 ~“Ni
analyses will be performed
only on selected samples, principally from the aquatic food chain.
Table I.
I.
Sample type,
quantity
Soil survey program
A.
Soil profiles, 200 x 6 = 1200
3" diam, O-1, 1-2, 2-3, 3-6, 6-9, 9-12
115 ec/in., 170 g/in.
B.
Six-inch deep cores
800
3" diam, 0-6", 2 adjacent (=2 kg)
C.
Two-inch deep cores
800
3" diam, 0-2", 300 g each
II,
Aquatic sampling program
Predicted Total
200
A.
Plankton
B.
Sediment
100 + selected samples
C.
Seawater
100
(48 (55 liter), 50 (18 liter)
26—