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CONTROLLED ENVIRONMENTAL RADIOIODINE TESTS
CLYDE A. HAWLEY, JR.,* and EARL H. MARKEE, JR.t
*Idaho Operations Office, U. S. Atomic Energy Commission, Idaho Falls, Idaho
tU. S. Weather Bureau, National Reactor*Pesting Station, Idaho Falls, Idaho
=
ABSTRACT
Cad
The Controlled Environmental Radioiodine Tests project consists in a
series of planned atmospheric releases of 1317 under varying meteorological conditions and in varying
mical forms. The primary objec-
tive of the project is to determine
quantitative behavigr of '*'l asit
passes through the air—vegetation—cow— milk—human ghain. So far,
two releases have been made, a preliminary one over a hatugal- grass
open-range area and the other ovaan established irrigated'pasture.
Measurements included depositiag, velociti@s, milk grass activity
ratios, half-lives on grass, halfelives in milk, Sportahit- instrument
readings relative to cortaminatigh levels, and humpY ; iysoid-uptake
fractions. This paper comparesgame of the-résuits of.
leases. Details of the preliminary test have beenwebhined!' details of
the second test have not yet been published.
INTRODUCTION
a
The Controlled Environmenta a ;
consists in a series of planned dt
under varying meteorological
cot
.
we
|
ioi
:
* ot
eTe . Fert) project
Hijet#Ps'ofradioiodine
he. ¢hemical
forms. The CERT project is diredted toward furhishi : rédiociodine-
behavior information directly appli¢able to the National Reasfor Testing Station (NRTS) and its environ (Fig. 1) in practicat ways. These
include establishing a basis upon which rapid, aceurate decisions can
be made during and after an accident situation as an aid to developing
realistic NRTS reactor-siting criteria and in the preparation and the
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