ot)
UD
qo.
15a
@
Project Officer - E. i. Tompicins
Cbhiective
To determine the chemical and physical state of the
gross fallout essential to a knowledge of its contaminationdecontenmination potentialities.
Instrumentation
Sampling instrumentation is described in the Project
2.°a Fre-Onperation Report.
of ultra-filters,
Laboratory ‘instrunentation consisted
ion exchange columns and associated counting-~
rate circuitry, standard chemical laboratory equipment, gamma
ee
channel gamma analyzer.
Results
Seven useful samples of fallout from the detonation
.
;
a
of £:DLULEbeeawere
recovered.
=
:
These consisted of 6 lagoon
station samples and one island station sample.
The semples -
were received at Parry Islend on the morning of 10 April 195%.
The semnles were aliquoted into three parts: (1) Treetment on
Site, (2) Radiochemical analysis at NRDL, (3) Chemical Analysis
at NADL.
All the useful semmles contained large volumes of
liquid (350 = 1850 m1).
This is the result of heavy rainfall
On both the day of the shot and the next day.
These samples
all consisted of a suspension of a grayish solid similar in
CopleasDoe
LANL, J-Div.
,
eM
’
ne
Ga
(2. Cole)
Bs
+ beta ye
{ndeIANAEland YBS45 “H
tdna fin.
.
tom se
7
Toa'
.
Noo, ‘ “yn
ANALYSIS OF SURFACE CONTAMINATION
scintillation counters, beta proportional counters, and a ten-
.
TOT TEN Ree
CPRIENE SS PS OTT
Project 2.68 ~ CHEMICAL, PHYSICAL -ND RADIOCHEMICEL
__
-
a5