3.
CONDUCT OF OPERATIONS:
a. The Field Radiation Support Team, in its eapacity of implementing the
radiological protection program discussed in Tab C (not included herein), will collect urine
samples, air sample filters, nose swipes, etc., which may be analyzed by the RAD LABfor
fast turn around results. These samples will be sealed in appropriate containers, eg.,
plastic bottles or plastic bags. Samples are to be supplied with proper identification and
accompanied by completed data forms. They will be delivered to the sample preparation
trailer in the RAD LAB complex. Soil samples taken on the northern islands also will be
sealed and identified in appropriate containers, and delivered to the sample preparation
trailer.
b. All samples received will be bagged and prepared for analysis. Soil samples
will be processed so that the sample will be homogenized. An aliquot will be taken from
the processed sample for analysis by wet chemistry. The remainder of the homogenized
sample will be stored for the duration of the project in case additional analysis is required.
e. The chemistry trailer is a minimal facility equipped to handle an estimated 10
soil samples/day. Chemistry techniques will be applied to prepare these and other
samples for subsequent counting.
d.
The radiation measurementstrailer will have two multichannel analyzers which
can be applied to two of four available detection systems: intrinsic germanium, sodium
iodide, alpha spectrometer, and FIDLER. The trailer will also contain low level alpha and
beta counting, liquid scintillation, and large area alpha and beta counting systems. The
radiological counting of a sample will be performed by one or more of these systems,
Appropriate mathematical calculations will be performed to convert sample counts to the
desired units. This facility will be equipped with health physics equipment to support the
laboratory operations and other limited functions on the Atoll.
e. Samples will be processed in batches so that blind samples of spiked blanks and
splits may be processed simultaneously for purpose of quality control. A written quality
assurance manual for RAD LAB operations will be developed for the approval of the
ERDA ERSP Manager. Quality control results will be documented.
f.
A written procedures manual, approved by ERDA, for sample preparation,
chemistry, and counting, will be developed and maintained. Analysis will conform to this
manual or to approved modification.*
g. Two FRST team members will be assigned to the function of instrument
maintenance. If required, they will be supplemented by personnel from the maintenance
trailer. There will be operational equipment spares in the forward area (northern islands),
however, the major inventory of spares for FRST team instrument support will be
maintained in the maintenance trailer.
h.
All radioactive calibration sources,
other
than license exempt,
will be
controlled by the RAD LAB in accordance with the procedures of appropriate chapters of
the ERDA Manual.
An inventory of these sources will be furnished the Enewetak
Radiological Protection Officer (RPO).
ij
The ERDA contractor, Eberline, will be responsible for the RAD LAB and
instrument maintenance facilities.
Military
personnel
will
facilities. (See chart C-2-D-1-1, shown herein as Figure E-5.)
be employed
in
these
js
The instrument maintenance facility will support the field in situ van operation
for repair and calibration as required. This will include appropriate test equipment and
ordinary spare parts. Unique spares for the system will be furnished by the ERDAin situ
van contractor (EG&G).
*See Appendix B of this report.
E
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