Radiclogica: Safety Regulations

CJTF SEVEN No. 3-53

contribution to the total flux from fixed contamination and that due
to "Shine" from contaminated waters. Fixed alpha contamination

should not exceed 2500 dpm(disintegrations per minute) per 150 cm

of area for enclosed areas (cabins, etc.) and 5000 dpm per 150 em

area for open surfaces where ventilation is good,

(5) At the conclusion of the operation, final clearances will be

granted by task group commanders or by commanding officers, if so
ordered, to those ships and boats showing no point of contamination

greater than 15 mr/day (beta and gamma) and no detectable alpha.

Other ships and boats will be granted operational clearances by task
greup commanders or by commanding cfficers, if so ordered. An operational clearance implies that contamination exiets and that special
procedures as necessary are instituted aboard ship.

(6) Individuals on board ships of the task force shall be protec-

ted collectively from hazards of blast, heat and radioactivity by

movement and positioning of the ships.

(7) No ships with persennel shall be permitted inside the 1.5
pP.%.i. line unless specifically directed otherwise. Pearings of danger from imcediate radicactive fall-out for ship operations will be
established by CJIF SEVEN cn the basis of fcrecast wind directions
at the intended time of detonation. This danger <ection will be
designated as surface RADEX. All ships of the task force shall be
required to remain outside the RADEX - danger bearing, radial limitation and time restriction unless specifically directed otherwise,
However, if ships are directed tactically into the surface RADEX,
movement of ships shall be governed by tactical exposure guides.
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Aircraft MPLs

(1) The interior surfaces of occupied sections of aircraft should

be reduced to 7 mr/hr.

(2) No aireraft in the air at H Hour will be at slant ranges
from ground cere lees than as determined by the following effects
uniess specifically directed otherwise. (Based on maximum predicted

yield and 20 mle visibility).

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Blast {at predicted shock arrival): 0.5 p.a.4.
Thermal (H Hour). Fabric control surfaces: 1.0 cal/em?

Metal control surfaces:

6.0 cal/cm

(3) After detonation no aircraft shall operate inside the air

RADEX or closer than 10 nautical miles from the rising or visible
cloud unless specifically directed otherwise. Non-excepted aircraft
involved in routine operations encountering unexpected regions of
serial contamination will, immediately upon detecting such contami~
mation, execute a turnout. Cloud tracking aircraft will execute
turnout from contaminated areas at a level of not more than 3.0 rhr.
If a tactical or emergency situation arises where aircraft rust
enter the air RADEX or visible cloud, tactical exposure allowances

shall apply.

t

(4) All multi-engine task force aireraft in the air at H Hour
withia 100 miles of the detonation point shall carry a person designated as radiologicai safety monitor, equipped with suitable radiac
equipment and a RADEX plot. This monitor shail be capable of

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