It is concluded that contamination from fallout encountered in
ese tests presents a serious decontamination problem on buildings and
paved areas.
(u)
The preliminary report of this work was published as-ITR 928;
a special report, CRIR 420.
~ WI-1113
~
DUST DENSITY VERSUS TIME AND DISTANCE IN THE SHOCK WAVE.
Operation TEAPOT.
Malcolm G. Gordon, John F. Stoudt, and Arthur B. Francis,
ee eeeeETSeeTe
-
i
June 1957.
CONFIDENTIAL-RESTRICTED DATA
_
Studies were made of the dust present at 3~ and 10-ft levels on
esert and asphalt surfaces during passage of MET Burst Precursor.
These
were made by continuous measurements of total air density with the beta
densitometer and determination of the ratio (€ dust/ @ total) and particle
size distribution in the shock wave.
'
‘
The beta densitometers operated
satisfactorily and camera records were obtained; however, the records could
not be used for total air density because of excessive radiation exposure.
The ratio (@ dust/ @ total) was determined and is accurate to +50%.
The
results of the dust sampler are indicative of a good approach and an
approximate answer in attempting to understand the relationship of air and
dust densities to dynamic pressure.
The sampler unit with modification and
reasonably good shock-wave data should be capable of obtaining necessary
|
and tested under simulated field conditions prior to extensive field use.
i
dust data.
It should be stressed, however, that the unit must be calibrated
(U)
The preliminary report of this work was published as ITR-1113;
WT-1119
-
|
a special report, CRIR 617.
FALLOUT STUDIES.
Cperation TEAPOT.
M. J. Schumchyk and E. H. Bouton, July 1958.
CONFIDENTIAL-FORMERLY RESTRICTED DATA
(Sucersedes ITR-1119).
A study was made of the fallout from
S
rst to obtain data required to construct closed contours for dose
rate levels Gown to and including l-r/hr at H + 1 hour.
Information is
presented concerning:
(1) the role of the base surge as a primary carrier
of activity; (2) radiation intensities in areas contaminated by fallout,
base surge, and in the craterlip region; (3) time of arrival of activity
at various distances from ground zero; (4) depth of burial of activity in
-the crater and on the lip, and (5) air-to-ground radiation intensity
Handle as Restri
ou
;
_
FORMERL
yl
-correlation factors calculated from data obtained during aerial surveys’
-of the contazinated areas.
'