2.
On-Site Analysis.
geometry
for
The samples are then transferred to an approximate 700 ¢
gamma
counting
for
24lAm,
152—u,
155Eu,
137Cs
and
OK. After gamma counting has been completed, the samples are split. One
portion shipped to EIC, Albuquerque Laboratory, and the other portion stored in
the Soil Library. The shipping box will have a packing list with EIC Laboratory
number and hard copy of gamma results with island location information. On-site
gamma sensitivity for 187Cs will be approximately 1 pCi/g. Pu/Am chemical
analysis will be done on island as laboratory load permits working to the goal of
chemical analysis of 10% of all 100-meter samples. The sample locations to be
processed for Pu/Am will be specified by the DOE/ERSP representative.
Off-Site Analysis. EIC offsite analysis will include processing coral sample for
90sr and all other Pu/Am not completed on Enewetak.
DOE/ERSP Procedure No. 15 assumes secular equilibrium of 90sr and 99Y has
been attained. The 90y is separated and used to quantify the 90sr,
Americium and plutonium analyses offsite include isolation of plutonium from
americium and electrodeposition. Tracers will be used to quantify plutonium and
americium activity based on the ratio of the tracer to isotope of interest.
A-28-3