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Hazards ReSulting from Atomic Bonb Explosion
CJTF SEVEN No. 353
ground zero.
Secondar.
radiation is due to activation of the soil
around ground zero and to fall-out.
e.
Following the detonation, personnel entering shot ereas will be ex-
posed to beta particles and gamma rays caning from induced neutron eéctivity in the soil
ed on the ground.
and any fission products which might have been dcposit
There nay also be a potential alpha particle hezzrd
rom the unfissioned fissionable materials which may be deposited on the
ground.
26
Protection
a.
Against the primary radiological effects, distance will provide
protection,
b,
.gainst the secondary radioactivity hazards from radioactive fis-
sion products, induced radioactivity and unfissioned residue, detection
and avoidance provide the best protection,
Suitable instruments indie
cate both the presence and intensity of radiéactivity at a given place,
area reconnaissance, the maintenance of contamination situttion maps,
the posting of areas of hazerd, and minimizing the spread of contazinste
material into uncontaminated areas constitute the active measures for
reducing the radiological hazard,
¢.
Personnel within an operational radius of ground zero who are to te
facing in the direction of the flash will be required to wear sp-cial
goggles to protect their eyes against excessive light.
Personnel withir
the ahove operetional radius who are not provided goggles will face, wit
eyes vlosed, in the opposite direction from the flash,
3.
conds, such personnel may turn about and observe the phenomena,
a
s
«after ten (15)
DOE ARCHIVES
onticipated Hazard Areas
a.
Immediately under the banb burst there will be an area of intense
downwind
,
.
redioactivity extending downozoc&k and to some extent crosswind and upwinc
with gradually decreasing intansity,: