f
Hazards Resulting fronaD
CUTF SEVEN Ko, 3-53
b.
Extending dovnvind, (and to some extent crosswind and upwind) an
airborne radioactive hazard will exist,
Its characteristics will dee
on the meterological influences such as wind speed and direction at ve
ious altitudes up to the maximum height reached by the cloud.
c.
Contaminated water in the lagoon adjacent to the snot site may be
of consequence, and will be analyzed by the radiological safety unit o
TG 7,1 immediately aftcr shot time and at other
d.
ntervals,
Unless care is exercised, individuals or objects entering covtzntn
areas may transfer radioactivity to clean areas,
e.
By means of instruzvents, such as Geiger-‘ueller counters and ion
chambers, it is possible to detect the area of conta.nnation and to re.
sure the intensity of the radioactivity,
tadiation intensity will nor-
mally be measured and reported in roentgens per hour.
Besides those
instranents, dosimeters and film badges will be used as indicators of
the accumulated exposure to radioactivity.
Only personnel involved in
work near, or in, radioactive areas will wear film badges to provide a
except that film badges will be issued tc
permanent record of exposure/10% of ship crews to aid in estimating
crew dosage in the event of heavy fall-out.
decrease
{, The intensity of the radioactive hazard tends to decmess: with time
due to decay of radioactive materials, anc dispersion and diluticr,
depending upon climatic conditions. ..s an approximation, the insurface ecrtamination
tensity of theoradistion from the fission products decreases by redioactive decay inversely with the tine efter the detonation, 4S a furine
approxivation, the intensity of water cortamination decreases by redioactive decay and diffusion inversely with the square of the time after
the detcration,.
DOE ARCHIVES
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