EVALUATION OF EYE HAZARDS FROM NUCLEAR DETONATIONS
Final rept. 1 Aug 1969-31 Aug 1970
TECHNOLOGY INC SAN ANTONIO TX LIFE SCIENCES DIV
Pagination or Media Count:
The retinal exposure equation, from which safe separation distances were calculated, was used as a basis for developing a linearized equation. New scaling laws for the spectral power and fireball radiance were also developed. These equations were used in deriving a variance equation for the safe separation distance. This equation is expressed in terms of variances of the independent variables retinal exposure, time of irradiation, yield, observer and burst altitude. The importance of retinal irradiance at the time of cutoff as effected by blinking or introduction of other shielding is demonstrated by an analysis of the coefficients in the variance equation, supported by a limited set of calculations. Retinal irradiance is affected by variations in the f- number of the eye and pulse profile of the fireball. The largest variances occur when the cutoff time is near a radiance maximum approximately a thermal maximum. Small increases in the variance are realized with increased differences in the vertical separation of observer and fireball, but these appear to be of importance only with very low yield weapons.
- Weapons Effects (Biological)