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Emergency Exposures to Nuclear Radiation (1956)

Emergency Exposures to Nuclear Radiation (1956)
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Emergency Exposures to Nuclear Radiation is Actually Civil Defense Technical Bulliten TD 11-1 of 1956

Civil defense authorities recognize that exposure to certain amounts of ionizing radiation will be accepted in some operational situations on a calculated risk basis along with other. hazards of war. Trained medical personnel (radiological defense medical officers) will be responsible for evaluating the radiological situation in terms of human hazards and for advising the local civil defense director or his representative. The civil defense director must sufficiently appreciate
the effects of radiation so that he will be able to utilize this advice in making operational decisions.

Material contained in this bulletin is consistent with the thinking of the military and nonmilitary governmental and private authorities in this field.

As with any hazard, the cardinal principle must be:

Training activities should -involve no more than the maximum permissible exposure of 0.3 r (roentgens) per week; most of them can, and should be, carried out at exposures far less than this.

In EMERGENCY operations where appreciable amounts of radiation are present, one should not hesitate to accept an exposure to the whole body of 25 r in a single day.

Operational decisions may be guided by a consideration of the following statements. An acute dosage of 50 r to a group of people will not appreciably affect their efficiency as a working unit. Acute dosage of 100 r will produce nausea and vomiting in occasional individuals, but not to an extent that will render personnel ineffective as groups. People receiving an acute radiation exposure of 100 r or more should be relieved from duty, if possible, and a report made to the staff medical advisor within a week. It should be assumed that if working units receive acute radiation doses substantially
above 100 1′, they will rapidly become ineffective.

Acute dosage of approximately 150 r Or greater can be expected to render personnel as a group ineffective in a few hours through a substantial incidence of nausea, vomiting, weakness, and prostration.

Mortality produced by an acute dose of 150 r will be very low, and eventual recovery of physical fitness usually may
be expected.

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