using the ci4 technique.
Dr.
I.
E. Wallen,
U.
S. Atomic Energy Commission,
of Biology and Medicine,
Division
spent one week with the group at
Rongelap.
Personnel from the Eniwetok Field Office, (U. S. Atomic
Energy Commission)
accompanied the group for the
purpose of
making gamma dose rate measurements.
The period from October 1, 1959 to June 1960 was spent in
the preparation and analysis of samples and data collected on
the September field trip.
Soils.
Sieving,
beta counting,
determination
of exchangeable bases,
classification and mapping,
gross-
preparation of
samples representative of the six major soil types
for radio-
chemical analysis.
Plants.
Preparation of plant samples by drying,
gross-beta counting,
grinding,
radiochemical analysis of edible plants,
cs137 ana potassium determinations of selected samples from
fertilizer plots and different soil types,
vegetation map of northern half
Bottom Samples.
completion of
of Rongelap Island.
Determination of
composition of cores by
one-inch increments,gross-beta counting of total material
fine particle
9002288
size fractions,
and
gamma spectrometric examination