a
.
.

:

re

,

.

a
7s.
we

PCLEAREFFECTS
OF:

fee,Director - EB. A. Martell, LtCol, USA

Fratect 2.1 - GAMA RADIATION DOSIMETRY
“Freject Officer - R. H. Dempsey
cplective

a <9“eanure the gamna radiation exposure at various locations following
agains
,
datonation.

i“wated on a aluminum stakes. The detectors wre placed at a height of
P 3 fot above ground. Both detecting systems were calibrated against an
_aFav betatron.

OE PW air ee

" ‘Eegulte

i

Shown in Table 2.1-1.
Discussion
énalysis of the data was made assuming a fall-out time of

i br.

ions 76, 77, 78, and 79, show evidence of having been exposed to
‘tmsiderable initial radiation in addition to the residual radiation

wich must have been present.
‘7,

Unfortiumately, the films from stations 76,

and 78 were partially destroyed, the data from 78 being based on the

ingle piece of film found.

ep
hope

Faleandchemical dosimeters were placed in i
3 aluminum cannisters

ee

a inatrumntation

It is hoped to be able to plot an RADY

2 vs D

Cirva for the initial radiation when the chemical detectors are analyzed.
The decay exponent was calculated for the remaining stations and
has an average value of 1.13,

=

_.Mb Z

Select target paragraph3