using the cl4 technique.
Dr. I. E. Wallen, U. S. Atomic Energy Commission, Division
of Biology and Medicine,
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 radiochemical analysis.
Plants.
Preparation of plant samples by drying,
gross-beta counting,
grinding,
radiochemical analysis of edible plants,
cst37 and potassium determinations of selected samples
fertilizer plots and different soil types,
vegetation map of northern half
Bottom Samples.
from
completion of
of Rongelap Island.
Determination of
composition of cores by
one-inch increments,gross-beta counting of total material and
fine particle
size fractions,
gamma spectrometric examination